dev: switch to fully containerized Docker Compose workflow

- Replace tmux setup with a full Docker Compose development stack
- Update backend Dockerfile to use `cargo-chef` caching and `supervisord`
- Containerize frontend development server
- Update tests to run in isolated containers
- Remove legacy `papercrate.tmux`

.gitea/workflows/release.yaml

@@ -1,53 +0,0 @@
-name: ci
-
-on:
-  push:
-    branches:
-      - main
-      - staging
-  tags:
-    - '*'
-
-jobs:
-  docker:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        include:
-          - service: frontend
-            context: frontend
-            dockerfile: frontend/Dockerfile
-          - service: backend
-            context: backend
-            dockerfile: backend/Dockerfile
-
-    steps:
-      - name: Checkout with submodules
-        uses: actions/checkout@v4
-        with:
-          submodules: recursive
-
-      - name: Login to Docker Registry
-        uses: docker/login-action@v2
-        with:
-          registry: ${{ vars.REGISTRY_URL }}
-          username: ${{ vars.REGISTRY_USER }}
-          password: ${{ secrets.REGISTRY_PASSWORD }}
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-        with:
-          driver: remote
-          endpoint: ${{ env.BUILDKIT_ARM64_ENDPOINT }}
-
-      - name: Build and Push ${{ matrix.service }} Image
-        uses: docker/build-push-action@v6
-        with:
-          context: ${{ matrix.context }}
-          file: ${{ matrix.dockerfile }}
-          platforms: linux/arm64
-          push: true
-          provenance: false
-          tags: |
-            ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}-${{ matrix.service }}:${{ gitea.ref_type == 'tag' && gitea.ref_name || (gitea.ref_name == 'main' && 'latest' || gitea.ref_name) }}
-            ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}-${{ matrix.service }}:${{ gitea.sha }}

.github/workflows/release.yaml

@@ -0,0 +1,146 @@
+name: ci
+
+on:
+  push:
+    branches:
+      - main
+      - staging
+      - dev
+    tags:
+      - '*'
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    strategy:
+      matrix:
+        include:
+          - service: frontend
+            context: frontend
+            dockerfile: frontend/Dockerfile
+          - service: backend
+            context: backend
+            dockerfile: backend/Dockerfile
+
+    steps:
+      - name: Checkout with submodules
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Derive repository metadata
+        id: repo_meta
+        run: |
+          repo="${GITHUB_REPOSITORY}"
+          owner="${repo%%/*}"
+          name="${repo##*/}"
+          echo "repo_owner=$owner" >> "$GITHUB_OUTPUT"
+          echo "repo_name=$name" >> "$GITHUB_OUTPUT"
+
+      - name: Compute base tag
+        id: compute_tag
+        env:
+          GITHUB_SHA: ${{ github.sha }}
+          GITHUB_REF_TYPE: ${{ github.ref_type }}
+          GITHUB_REF_NAME: ${{ github.ref_name }}
+        run: |
+          sha="${GITHUB_SHA}"
+          ref_type="${GITHUB_REF_TYPE}"
+          ref_name="${GITHUB_REF_NAME}"
+
+          short="${sha:0:7}"
+          tag="$short"
+
+          if [ "$ref_type" = "tag" ]; then
+            tag="$ref_name"
+          elif [ "$ref_name" = "dev" ]; then
+            tag="${tag}-dev"
+          elif [ "$ref_name" = "staging" ]; then
+            tag="${tag}-staging"
+          fi
+
+          echo "base_tag=$tag" >> "$GITHUB_OUTPUT"
+
+      - name: Login to local registry
+        if: ${{ vars.REGISTRY_URL != '' }}
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ vars.REGISTRY_URL }}
+          username: ${{ vars.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+
+      - name: Login to GHCR
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Determine branch alias tag
+        id: branch_alias
+        env:
+          REF_NAME: ${{ github.ref_name }}
+        run: |
+          alias=""
+          case "${REF_NAME}" in
+            dev) alias="latest-dev" ;;
+            staging) alias="latest-staging" ;;
+            main) alias="latest" ;;
+          esac
+          echo "alias=$alias" >> "$GITHUB_OUTPUT"
+
+      - name: Assemble image tags
+        id: tag_list
+        env:
+          REGISTRY_URL: ${{ vars.REGISTRY_URL }}
+          REPO_NAME: ${{ steps.repo_meta.outputs.repo_name }}
+          SERVICE: ${{ matrix.service }}
+          BASE_TAG: ${{ steps.compute_tag.outputs.base_tag }}
+          GIT_SHA: ${{ github.sha }}
+          BRANCH_ALIAS: ${{ steps.branch_alias.outputs.alias }}
+        shell: bash
+        run: |
+          tags=""
+
+          if [ -n "${REGISTRY_URL}" ]; then
+            repo_tag="${REGISTRY_URL}/${REPO_NAME}-${SERVICE}"
+            tags="${tags}${repo_tag}:${BASE_TAG}\n${repo_tag}:${GIT_SHA}"
+          fi
+
+          ghcr_tag="ghcr.io/papercrate-dms/${REPO_NAME}-${SERVICE}"
+          if [ -n "${tags}" ]; then
+            tags="${tags}\n"
+          fi
+          tags="${tags}${ghcr_tag}:${BASE_TAG}\n${ghcr_tag}:${GIT_SHA}"
+
+          if [ -n "${BRANCH_ALIAS}" ]; then
+            if [ -n "${REGISTRY_URL}" ]; then
+              tags="${tags}\n${repo_tag}:${BRANCH_ALIAS}"
+            fi
+            tags="${tags}\n${ghcr_tag}:${BRANCH_ALIAS}"
+          fi
+
+          export TAGS="${tags}"
+
+          python -c 'import os; tags=[t.strip() for t in os.environ["TAGS"].split("\\n") if t.strip()]; print("tags=" + ",".join(tags))' | tee -a "$GITHUB_OUTPUT"
+
+      - name: Build and Push ${{ matrix.service }} Image
+        uses: docker/build-push-action@v6
+        with:
+          context: ${{ matrix.context }}
+          file: ${{ matrix.dockerfile }}
+          platforms: linux/amd64,linux/arm64
+          push: true
+          provenance: false
+          tags: ${{ steps.tag_list.outputs.tags }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

DEVELOPMENT.md

@@ -0,0 +1,128 @@
+# Development
+
+This document collects runtime assumptions and workflows for local development,
+integration testing, and infrastructure automation.
+
+## Local Development
+
+The entire application stack (frontend, backend, worker, database, minio, quickwit) runs fully containerized via Docker Compose.
+
+### Start Development Environment
+
+To start the stack (builds are handled automatically):
+
+```bash
+docker compose -f docker-compose.dev.yml up --build
+```
+
+### Apply Code Changes
+
+Hot-reloading is handled automatically by `cargo watch` inside the container.
+When you save files in `backend/src`, the watcher will:
+
+1.  Rebuild the modified binaries.
+2.  Restart the `backend`, `worker`, and `webdav` services via `supervisord`.
+
+No manual restart is required.
+
+### Running Migrations
+
+Since `diesel-cli` runs inside the container:
+
+```bash
+# Run pending migrations
+docker compose -f docker-compose.dev.yml exec server diesel migration run
+
+# Revert last migration
+docker compose -f docker-compose.dev.yml exec server diesel migration revert
+
+# Create new migration
+docker compose -f docker-compose.dev.yml exec server diesel migration generate name_of_migration
+```
+
+The development Postgres container now seeds two database roles:
+
+- `papercrate_app_login` (password `papercrate_app`) is used by the backend and
+  is subject to row-level security policies.
+- `papercrate` remains the owner role for running Diesel migrations or other
+  maintenance tasks.
+
+When connecting manually to inspect RLS behaviour, switch to the application
+role with `SET ROLE papercrate_app_login;` before querying tenant tables.
+
+## Backend Integration Tests
+
+Integration tests run in a dedicated, ephemeral container stack. The repository includes a lightweight compose file that provisions a fresh Postgres instance (using tmpfs) and Quickwit for every run.
+
+To run the tests:
+
+```bash
+docker compose -f docker-compose.test.yml run --rm test-runner
+```
+
+This will:
+1.  Spin up `postgres-test` and `quickwit-test` (in background if not running).
+2.  Start the `test-runner` container.
+3.  Wait for DB, run migrations, and execute `cargo test`.
+4.  Remove the runner container after exit.
+
+To clean up the infrastructure afterwards:
+```bash
+docker compose -f docker-compose.test.yml down
+```
+
+The compose service uses tmpfs storage, giving each test run a clean database.
+
+## Runtime Dependencies
+
+- `ocrmypdf`: Used by the worker to extract text from images. If missing, the worker logs a warning and skips text extraction for that document.
+- `Quickwit`: Used for full-text search. If configured (via `QUICKWIT_ENDPOINT`), the worker pushes extracted text to the index. If missing, search features will simply be unavailable.
+
+## Configuration
+
+The backend reads its settings from environment variables. In particular:
+
+- `DATABASE_URL` – connection string for the primary Postgres database (required).
+- `DATABASE_MAX_POOL_SIZE` – optional override for the r2d2 connection pool size.
+  Defaults to `2`; increase it in staging/production to match expected concurrency.
+- `PROXY_DOWNLOADS` – set to `true` when the object store is only reachable from
+  the backend network. When enabled, `/api/download/{token}` and asset-object fetches
+  stream bytes through the API instead of redirecting clients to S3/Hetzner.
+
+On startup each binary logs the effective configuration with secrets redacted
+(for example, the database password is masked). This makes it easier to confirm
+runtime settings in staging without exposing credentials.
+
+## Running Migrations in Kubernetes
+
+The backend container image ships with the `papercrate-admin` binary, which can execute schema migrations
+as a short-lived Job (or Helm hook) before rolling out new pods. Example manifest:
+
+```yaml
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: papercrate-migrate
+spec:
+  template:
+    spec:
+      restartPolicy: OnFailure
+      containers:
+        - name: migrate
+          image: ghcr.io/example/papercrate-backend:<TAG>
+          command: ["/usr/local/bin/papercrate-admin", "migrate-database"]
+          env:
+            - name: DATABASE_URL
+              valueFrom:
+                secretKeyRef:
+                  name: papercrate-db
+                  key: DATABASE_URL
+
+            - name: MIGRATIONS_DATABASE_URL
+              valueFrom:
+                secretKeyRef:
+                  name: papercrate-db
+                  key: DATABASE_URL
+```
+
+Run the Job manually or use the Helm hooks configured in `k8s/papercrate/templates/migrate-job.yaml`. The `papercrate-admin` binary is built specifically for administrative tasks.

README.md

@@ -1,73 +1,48 @@
 # Papercrate
 
-## Local Development
+![Papercrate document workspace](docs/screenshot.png)
 
-Use the provided `papercrate.tmux` to spin up the full stack in one tmux session:
+## Single-Host Deployment (Docker Compose)
+
+For self-hosting (for example on a Raspberry Pi), use the production-oriented
+`docker-compose.yml`. Define the required secrets in a `.env` file alongside the
+compose file before starting the stack:
 
 ```bash
-tmux -f papercrate.tmux attach
+cat <<'EOF' > .env
+POSTGRES_PASSWORD=change-me
+MINIO_ROOT_PASSWORD=change-me-too
+JWT_SECRET=generate-a-long-random-string
+WEBAUTHN_RP_ID=papercrate.local
+WEBAUTHN_ORIGIN=http://papercrate.local:8080
+# Optional overrides
+# CORS_ALLOWED_ORIGIN=http://papercrate.local:8080
+# REFRESH_COOKIE_SECURE=true
+EOF
+
+docker compose build
+docker compose up -d
 ```
 
-This creates windows for the compose stack, frontend dev server, backend API, and background worker using the repository-relative paths defined in the tmux file. Detach with `Ctrl+b d` and reattach later with the same command.
+**Important:** the WebAuthn settings must match the public URL clients will use.
+The relying party (RP) identifier is the bare host name, while the origin must
+include scheme and port. Adjust the values above if you serve Papercrate from a
+different host, domain, or HTTPS endpoint—otherwise passkey registration and
+login will fail.
 
-## Backend Integration Tests
+The compose file builds the backend and frontend images locally, then launches
+Postgres, MinIO, Quickwit, the API, background worker, WebDAV endpoint, and the
+SPA frontend. Once the containers report healthy, visit `http://<host>:8080`
+and use the passkey signup flow to provision the first tenant/user. Upgrades are
+as simple as `git pull` followed by `docker compose up -d`.
 
-Integration tests require a running Postgres instance (and, optionally, Quickwit for OCR indexing). The repository includes a lightweight compose file for local runs:
+## Screenshots
 
-```bash
-docker compose -f docker-compose.test.yml up -d
-export TEST_DATABASE_URL=postgres://papercrate:papercrate_test@localhost:5433/papercrate_test
-# optional, enables Quickwit indexing jobs
-export QUICKWIT_ENDPOINT=http://localhost:7280
-export QUICKWIT_INDEX=documents
-cargo test
-```
+![Document detail view](docs/detailview.png)
+![Desk overview](docs/deskview.png)
+![Document view](docs/documentview.png)
 
-Stop the database when you are done:
+---
 
-```bash
-docker compose -f docker-compose.test.yml down
-```
-
-The compose service uses tmpfs storage, giving each test run a clean database.
-
-## Runtime Dependencies
-
-- `ocrmypdf` (optional but recommended): Used by the OCR worker to extract text from PDFs when no embedded text layer is available. Ensure it is installed and available on the worker hosts if OCR is desired.
-- Quickwit (optional): The Quickwit indexer is used to ingest extracted text for search. Set `QUICKWIT_ENDPOINT` and `QUICKWIT_INDEX` in the environment when running workers if you want indexing jobs to run. The local compose file starts a Quickwit instance on `http://localhost:7280` and seeds the `documents` index automatically.
-
-## Configuration
-
-The backend reads its settings from environment variables (see `backend/.env` for local defaults). In particular:
-
-- `DATABASE_URL` – connection string for the primary Postgres database (required).
-- `DATABASE_MAX_POOL_SIZE` – optional override for the r2d2 connection pool size. Defaults to `2`; increase it in staging/production to match expected concurrency.
-
-On startup each binary logs the effective configuration with secrets redacted (for example, the database password is masked). This makes it easier to confirm the runtime settings in staging without exposing credentials.
-
-## Running Migrations in Kubernetes
-
-The backend container image ships the `diesel` CLI, so schema migrations can be executed as a short-lived Job (or Helm hook) before rolling out new pods. Example manifest:
-
-```yaml
-apiVersion: batch/v1
-kind: Job
-metadata:
-  name: papercrate-migrate
-spec:
-  template:
-    spec:
-      restartPolicy: OnFailure
-      containers:
-        - name: migrate
-          image: ghcr.io/example/papercrate-backend:<TAG>
-          command: ["/usr/local/bin/diesel", "migration", "run"]
-          env:
-            - name: DATABASE_URL
-              valueFrom:
-                secretKeyRef:
-                  name: papercrate-db
-                  key: DATABASE_URL
-```
-
-Run the Job manually (`kubectl apply -f migrate-job.yaml`) or configure it as a Helm pre-install/pre-upgrade hook so migrations run automatically on each deployment. Once the Job succeeds, deploy/update the backend `Deployment` as usual.
+For development workflows (local stack, integration tests, migrations, and
+configuration details) see [DEVELOPMENT.md](./DEVELOPMENT.md).

backend/.dockerignore

@@ -0,0 +1 @@
+target/

backend/Cargo.toml

@@ -1,26 +1,24 @@
 [package]
-name = "backend"
+name = "papercrate"
 version = "0.1.0"
 edition = "2021"
 
 [dependencies]
 # Web framework
-axum = { version = "0.7", features = ["multipart"] }
-tokio = { version = "1", features = ["full"] }
-tower = { version = "0.4", features = ["make", "util"] }
+axum = { version = "0.8", features = ["multipart"] }
+tokio = { version = "1.48", features = ["full"] }
+tower = { version = "0.5", features = ["make", "util"] }
 tower-http = { version = "0.6", features = ["cors", "trace"] }
-axum-extra = { version = "0.9", features = ["typed-header"] }
+axum-extra = { version = "0.12", features = ["typed-header"] }
 
 # Database
-diesel = { version = "2.1", features = ["postgres", "uuid", "chrono", "serde_json", "r2d2"] }
+diesel = { version = "2.3.3", features = ["postgres", "uuid", "chrono", "serde_json", "r2d2"] }
 diesel_migrations = "2.1"
 uuid = { version = "1.6", features = ["v4", "serde"] }
 chrono = { version = "0.4", features = ["serde"] }
 
 # S3
-aws-config = "1.1"
-aws-sdk-s3 = "1.14"
-aws-credential-types = "1.2"
+rust-s3 = { version = "0.37", features = ["with-tokio", "tokio-rustls-tls"] }
 
 # Serialization
 serde = { version = "1.0", features = ["derive"] }
@@ -34,37 +32,68 @@ tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 dotenv = "0.15"
 sha2 = "0.10"
 hex = "0.4"
+hmac = "0.12"
 bytes = "1.5"
 async-trait = "0.1"
-image = { version = "0.25", default-features = false, features = ["png", "jpeg"] }
-pdfium-render = "0.8"
+image = { version = "0.25", default-features = false, features = ["png", "jpeg", "webp"] }
+pdfium-render = "0.8.36"
 mime_guess = "2.0"
 tempfile = "3.10"
-reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls", "stream"] }
+reqwest = { version = "0.12.24", default-features = false, features = ["json", "rustls-tls", "stream"] }
 percent-encoding = "2.3"
-base64 = "0.21"
-quick-xml = "0.32"
+base64 = "0.22"
+quick-xml = "0.38"
 futures-util = "0.3"
 url = "2.5"
 once_cell = "1.19"
+regex = "1.11"
+infer = "0.19"
 utoipa = { version = "4.2", default-features = false, features = ["chrono", "uuid", "preserve_order"] }
+clap = { version = "4.5", features = ["derive"] }
 
 # Error handling
-thiserror = "1.0"
+thiserror = "2.0"
 anyhow = "1.0"
 
 # Authentication & security
 argon2 = "0.5"
-jsonwebtoken = "9"
+jsonwebtoken = { version = "10", features = ["rust_crypto"] }
 webauthn-rs = { version = "0.5", features = ["danger-allow-state-serialisation", "danger-credential-internals"] }
 serde_bytes = "0.11"
 serde_cbor_2 = "0.13"
 
 # Misc
-rand = "0.8"
+rand = "0.9"
+hyper = "1.2"
+http-body-util = "0.1"
+chrono-tz = "0.8"
 
 [dev-dependencies]
 once_cell = "1.19"
-hyper = "1.2"
-http-body-util = "0.1"
 webauthn-rs-core = "0.5"
+serde_yaml = "0.9"
+
+[build-dependencies]
+serde = { version = "1.0", features = ["derive"] }
+serde_yaml = "0.9"
+serde_json = "1.0"
+regex = "1.11"
+
+[[bin]]
+name = "backend"
+path = "src/main.rs"
+[[bin]]
+name = "worker"
+path = "src/bin/worker.rs"
+
+[[bin]]
+name = "webdav"
+path = "src/bin/webdav.rs"
+
+[[bin]]
+name = "admin"
+path = "src/bin/admin.rs"
+
+[[bin]]
+name = "openapi-dump"
+path = "src/bin/openapi_dump.rs"

backend/Dockerfile

@@ -1,62 +1,235 @@
-# syntax=docker/dockerfile:1
+# ------------------------------------------------------------------------------
+# Global Arguments
+# ------------------------------------------------------------------------------
+ARG RUST_VERSION=1
+ARG RUNTIME_DEPS="ocrmypdf tesseract-ocr ghostscript qpdf ffmpeg"
 
-FROM rust:1-slim AS builder
+# ------------------------------------------------------------------------------
+# Base Stage: Shared Logic (PDFium)
+# ------------------------------------------------------------------------------
+FROM --platform=$BUILDPLATFORM rust:${RUST_VERSION}-slim AS base
+ARG RUNTIME_DEPS
 WORKDIR /app
 
-RUN apt-get update \
-    && apt-get install -y --no-install-recommends \
-        build-essential \
-        pkg-config \
-        libssl-dev \
-        libpq-dev \
-        libjpeg-dev \
-        libpng-dev \
-        curl \
+# Install PDFium
+ARG TARGETARCH
+RUN set -eux; \
+    case "${TARGETARCH}" in \
+        amd64|x86_64) pdfium_package=pdfium-linux-x64.tgz ;; \
+        arm64|aarch64) pdfium_package=pdfium-linux-arm64.tgz ;; \
+        *) echo "Unsupported TARGETARCH: ${TARGETARCH}" >&2; exit 1 ;; \
+    esac; \
+    apt-get update && apt-get install -y --no-install-recommends curl ca-certificates; \
+    curl -fsSL "https://github.com/bblanchon/pdfium-binaries/releases/latest/download/${pdfium_package}" -o /tmp/pdfium.tgz; \
+    mkdir -p /tmp/pdfium; \
+    tar -xzf /tmp/pdfium.tgz -C /tmp/pdfium --strip-components=1; \
+    pdfium_so="$(find /tmp/pdfium -name libpdfium.so -type f | head -n1)"; \
+    [ -n "${pdfium_so}" ]; \
+    mkdir -p /usr/local/lib; \
+    cp "${pdfium_so}" /usr/local/lib/libpdfium.so; \
+    rm -rf /tmp/pdfium.tgz /tmp/pdfium
+
+# Install common build dependencies AND runtime deps (for dev/testing)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    pkg-config \
+    libssl-dev \
+    libpq-dev \
+    libjpeg-dev \
+    libpng-dev \
+    zlib1g-dev \
+    ca-certificates \
+    curl \
+    git \
+    ${RUNTIME_DEPS} \
     && rm -rf /var/lib/apt/lists/*
 
-COPY Cargo.toml Cargo.lock ./
+# ------------------------------------------------------------------------------
+# Development Stage
+# ------------------------------------------------------------------------------
+# ------------------------------------------------------------------------------
+# Chef Stage: Install cargo-chef (used for caching)
+# ------------------------------------------------------------------------------
+FROM base AS chef
+RUN cargo install cargo-chef
+
+# ------------------------------------------------------------------------------
+# Planner Stage: Compute lockfile recipe
+# ------------------------------------------------------------------------------
+FROM chef AS planner
+COPY . .
+RUN cargo chef prepare --recipe-path recipe.json
+
+# ------------------------------------------------------------------------------
+# Cacher Stage: Build dependencies only
+# ------------------------------------------------------------------------------
+FROM chef AS cacher
+ENV CARGO_TARGET_DIR=/cargo-target
+COPY --from=planner /app/recipe.json recipe.json
+# Build dependencies (including test deps) based on the recipe
+RUN cargo chef cook --tests --recipe-path recipe.json
+
+# ------------------------------------------------------------------------------
+# Development Stage
+# ------------------------------------------------------------------------------
+FROM base AS development
+WORKDIR /app
+
+# Install additional development tools
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    procps \
+    postgresql-client \
+    supervisor \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install diesel-cli for migrations
+RUN cargo install diesel_cli --no-default-features --features postgres
+
+# Install cargo-watch for hot reloading
+RUN cargo install cargo-watch
+
+# Setup Cache
+ENV CARGO_TARGET_DIR=/cargo-target
+COPY --from=cacher /cargo-target /cargo-target
+COPY --from=cacher /usr/local/cargo /usr/local/cargo
+
+# Copy PDFium from base
+COPY --from=base /usr/local/lib/libpdfium.so /usr/local/lib/libpdfium.so
+ENV LD_LIBRARY_PATH=/usr/local/lib
+RUN ldconfig
+
+ENV RUST_LOG=info
+CMD ["./run-dev.sh"]
+
+# ------------------------------------------------------------------------------
+# Production Builder Stage
+# ------------------------------------------------------------------------------
+# We restart from base to keep the image clean, but copy PDFium if needed for build/tests
+FROM base AS builder
+ARG TARGETARCH
+ENV TARGETARCH=${TARGETARCH}
+WORKDIR /app
+
+# Resolve cross-compilation target script
+RUN cat <<'SCRIPT' >/usr/local/bin/resolve-target.sh
+#!/bin/sh
+set -e
+case "$1" in
+  amd64) echo x86_64-unknown-linux-gnu ;;
+  arm64) echo aarch64-unknown-linux-gnu ;;
+  *) echo "Unsupported TARGETARCH: $1" >&2; exit 1 ;;
+esac
+SCRIPT
+RUN chmod +x /usr/local/bin/resolve-target.sh
+
+# Install cross-compilation deps
+ARG BUILDPLATFORM
+RUN if [ "${TARGETARCH}" = "amd64" ]; then \
+        echo "x86_64-linux-gnu" > /tmp/target_deb_arch; \
+    elif [ "${TARGETARCH}" = "arm64" ]; then \
+        echo "aarch64-linux-gnu" > /tmp/target_deb_arch; \
+    else \
+        echo "Unsupported TARGETARCH: ${TARGETARCH}" >&2; exit 1; \
+    fi
+
+RUN set -eux; \
+    # Detect build arch (assuming debian-like names compatible with apt)
+    dpkg_arch="$(dpkg --print-architecture)"; \
+    target_deb_arch="$(cat /tmp/target_deb_arch)"; \
+    \
+    # If we are cross-compiling
+    if [ "${dpkg_arch}" != "${TARGETARCH}" ]; then \
+        # Map target arch to debian package arch suffix if needed, but usually apt handles :arch
+        # For cross-compiling, we need to add the architecture
+        dpkg --add-architecture "${TARGETARCH}"; \
+        apt-get update; \
+        \
+        case "${TARGETARCH}" in \
+            arm64) CROSS_GCC=gcc-aarch64-linux-gnu ;; \
+            amd64) CROSS_GCC=gcc-x86-64-linux-gnu ;; \
+        esac; \
+        \
+        apt-get install -y --no-install-recommends \
+            "${CROSS_GCC}" \
+            "libc6-dev:${TARGETARCH}" \
+            "libssl-dev:${TARGETARCH}" \
+            "libpq-dev:${TARGETARCH}" \
+            "libjpeg-dev:${TARGETARCH}" \
+            "libpng-dev:${TARGETARCH}" \
+            "zlib1g-dev:${TARGETARCH}"; \
+        \
+        # Configure PKG_CONFIG and LINKER to find foreign libraries
+        case "${TARGETARCH}" in \
+            "amd64") \
+                GNU_ARCH="x86_64-linux-gnu" \
+                RUST_ARCH="x86_64_unknown_linux_gnu" \
+                RUST_ARCH_UPPER="X86_64_UNKNOWN_LINUX_GNU" \
+                ;; \
+            "arm64") \
+                GNU_ARCH="aarch64-linux-gnu" \
+                RUST_ARCH="aarch64_unknown_linux_gnu" \
+                RUST_ARCH_UPPER="AARCH64_UNKNOWN_LINUX_GNU" \
+                ;; \
+        esac; \
+        \
+        { \
+            echo "export PKG_CONFIG_ALLOW_CROSS=1"; \
+            echo "export PKG_CONFIG_PATH=/usr/lib/${GNU_ARCH}/pkgconfig"; \
+            echo "export OPENSSL_DIR=/usr/lib/${GNU_ARCH}"; \
+            echo "export OPENSSL_LIB_DIR=/usr/lib/${GNU_ARCH}"; \
+            echo "export OPENSSL_INCLUDE_DIR=/usr/include/${GNU_ARCH}"; \
+            echo "export CARGO_TARGET_${RUST_ARCH_UPPER}_LINKER=${GNU_ARCH}-gcc"; \
+            echo "export CC_${RUST_ARCH}=${GNU_ARCH}-gcc"; \
+            echo "export CXX_${RUST_ARCH}=${GNU_ARCH}-g++"; \
+        } >> /etc/profile; \
+    fi; \
+    rm -rf /var/lib/apt/lists/*
+
+ENV PKG_CONFIG_ALLOW_CROSS=1
+
+COPY Cargo.toml Cargo.lock build.rs ./
 COPY src ./src
 COPY migrations ./migrations
 COPY tests ./tests
+COPY resources ./resources
 COPY diesel.toml ./
 
-RUN cargo build --release --bin backend --bin worker --bin webdav --bin admin
-RUN cargo install diesel_cli --no-default-features --features postgres
+RUN set -eux; \
+    echo "Loading cross-compilation environment..."; \
+    . /etc/profile; \
+    export PATH="$PATH:/usr/local/cargo/bin"; \
+    TARGET="$(/usr/local/bin/resolve-target.sh "${TARGETARCH}")"; \
+    rustup target add "${TARGET}"; \
+    cargo build --release --target "${TARGET}" --bin backend --bin worker --bin webdav --bin admin; \
+    mkdir -p /artifacts; \
+    for bin in backend worker webdav admin; do \
+        cp "target/${TARGET}/release/${bin}" "/artifacts/${bin}"; \
+    done
 
+# ------------------------------------------------------------------------------
+# Production Runtime Stage
+# ------------------------------------------------------------------------------
 FROM debian:trixie-slim AS runtime
+ARG TARGETARCH
+ARG RUNTIME_DEPS
 WORKDIR /app
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
-        ca-certificates \
-        curl \
-        libssl3 \
-        libpq5 \
-        libjpeg62-turbo \
-        libpng16-16 \
-        ocrmypdf \
-        tesseract-ocr \
-        ghostscript \
-        qpdf \
+        ca-certificates curl libssl3 libpq5 libjpeg62-turbo libpng16-16 \
+        ${RUNTIME_DEPS} \
     && rm -rf /var/lib/apt/lists/* \
     && mkdir -p /usr/local/lib \
-    && curl -fsSL https://github.com/bblanchon/pdfium-binaries/releases/latest/download/pdfium-linux-arm64.tgz -o /tmp/pdfium.tgz \
-    && mkdir -p /tmp/pdfium \
-    && tar -xzf /tmp/pdfium.tgz -C /tmp/pdfium --strip-components=1 \
-    && pdfium_so="$(find /tmp/pdfium -name libpdfium.so -type f | head -n1)" \
-    && [ -n "${pdfium_so}" ] \
-    && mv "${pdfium_so}" /usr/local/lib/libpdfium.so \
-    && ldconfig \
-    && rm -rf /tmp/pdfium.tgz /tmp/pdfium \
     && useradd --system --create-home --uid 10001 appuser
 
-COPY --from=builder /app/target/release/backend /usr/local/bin/papercrate-backend
-COPY --from=builder /app/target/release/worker /usr/local/bin/papercrate-worker
-COPY --from=builder /app/target/release/webdav /usr/local/bin/papercrate-webdav
-COPY --from=builder /app/target/release/admin /usr/local/bin/papercrate-admin
-COPY --from=builder /usr/local/cargo/bin/diesel /usr/local/bin/diesel
+COPY --from=builder /artifacts/backend /usr/local/bin/papercrate-backend
+COPY --from=builder /artifacts/worker /usr/local/bin/papercrate-worker
+COPY --from=builder /artifacts/webdav /usr/local/bin/papercrate-webdav
+COPY --from=builder /artifacts/admin /usr/local/bin/papercrate-admin
+COPY --from=base /usr/local/lib/libpdfium.so /usr/local/lib/libpdfium.so
+
+RUN ldconfig
 COPY migrations ./migrations
-COPY diesel.toml ./
 
 ENV RUST_LOG=info
 USER appuser

backend/build.rs

@@ -0,0 +1,123 @@
+use std::env;
+use std::fs;
+use std::path::PathBuf;
+
+use regex::escape;
+use serde::Deserialize;
+
+#[derive(Deserialize)]
+struct CaseSuite {
+    cases: Vec<CaseName>,
+}
+
+#[derive(Deserialize)]
+struct CaseName {
+    name: String,
+}
+
+#[derive(Deserialize)]
+struct MonthSuite {
+    months: Vec<MonthDefinition>,
+}
+
+#[derive(Deserialize)]
+struct MonthDefinition {
+    name: String,
+    month: u32,
+    #[serde(default)]
+    locales: Vec<String>,
+}
+
+fn sanitize(name: &str) -> String {
+    let mut out = String::with_capacity(name.len());
+    for ch in name.chars() {
+        if ch.is_ascii_alphanumeric() {
+            out.push(ch);
+        } else {
+            out.push('_');
+        }
+    }
+    if out.is_empty() {
+        "case".to_string()
+    } else if out.chars().next().unwrap().is_ascii_digit() {
+        format!("_{}", out)
+    } else {
+        out
+    }
+}
+
+fn quote(value: &str) -> String {
+    serde_json::to_string(value).expect("string literal")
+}
+
+fn generate_tests() -> Result<String, Box<dyn std::error::Error>> {
+    let yaml_path = PathBuf::from("tests/data/issued_at_cases.yaml");
+    let contents = fs::read_to_string(&yaml_path)?;
+    let suite: CaseSuite = serde_yaml::from_str(&contents)?;
+
+    let mut output =
+        String::from("#[cfg(test)]\npub mod issued_at_generated_tests {\n    use super::*;\n");
+
+    for case in suite.cases {
+        let ident = sanitize(&case.name);
+        output.push_str(&format!(
+            "    #[test]\n    fn {}() {{\n        run_named_case(\"{}\");\n    }}\n",
+            ident, case.name
+        ));
+    }
+
+    output.push_str("}\n");
+    Ok(output)
+}
+
+fn generate_months() -> Result<String, Box<dyn std::error::Error>> {
+    let yaml_path = PathBuf::from("resources/issued_at_months.yaml");
+    let contents = fs::read_to_string(&yaml_path)?;
+    let suite: MonthSuite = serde_yaml::from_str(&contents)?;
+
+    let mut pattern_parts = Vec::with_capacity(suite.months.len());
+    let mut entries = String::new();
+    for entry in &suite.months {
+        pattern_parts.push(escape(&entry.name));
+        let locales_literal = if entry.locales.is_empty() {
+            "&[]".to_string()
+        } else {
+            let joined = entry
+                .locales
+                .iter()
+                .map(|loc| quote(loc))
+                .collect::<Vec<_>>()
+                .join(", ");
+            format!("&[{}]", joined)
+        };
+        entries.push_str(&format!(
+            "    MonthVariant {{ name: {}, month: {}, locales: {} }},\n",
+            quote(&entry.name),
+            entry.month,
+            locales_literal
+        ));
+    }
+
+    let pattern_literal = quote(&pattern_parts.join("|"));
+    let output = format!(
+        "pub(super) static MONTH_VARIANTS: &[MonthVariant] = &[\n{entries}];\n\n",
+        entries = entries
+    ) + &format!(
+        "pub(super) const MONTH_PATTERN: &str = {};\n",
+        pattern_literal
+    );
+    Ok(output)
+}
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    println!("cargo:rerun-if-changed=tests/data/issued_at_cases.yaml");
+    println!("cargo:rerun-if-changed=resources/issued_at_months.yaml");
+
+    let out_dir = PathBuf::from(env::var("OUT_DIR")?);
+    fs::write(
+        out_dir.join("issued_at_generated_tests.rs"),
+        generate_tests()?,
+    )?;
+    fs::write(out_dir.join("issued_at_months.rs"), generate_months()?)?;
+    Ok(())
+}

backend/diesel.toml

@@ -1,6 +1,2 @@
-[print_schema]
-file = "src/schema.rs"
-custom_type_derives = ["diesel::query_builder::QueryId", "Clone"]
-
 [migrations_directory]
 dir = "migrations"

backend/migrations/202510300000_initial_schema/down.sql

@@ -1,8 +1,10 @@
 DROP TRIGGER IF EXISTS trg_jobs_updated_at ON jobs;
 DROP FUNCTION IF EXISTS touch_jobs_updated_at();
 
+DROP TABLE IF EXISTS webauthn_challenges;
+DROP TABLE IF EXISTS user_passkeys;
+DROP TABLE IF EXISTS webdav_tokens;
 ALTER TABLE documents DROP CONSTRAINT IF EXISTS documents_current_version_fk;
-
 DROP TABLE IF EXISTS document_asset_objects;
 DROP TABLE IF EXISTS document_assets;
 DROP TABLE IF EXISTS document_versions;
@@ -18,4 +20,6 @@ DROP TABLE IF EXISTS user_memberships;
 DROP TABLE IF EXISTS users;
 DROP TABLE IF EXISTS tenants;
 
+DROP TYPE IF EXISTS tenant_status;
+
 DROP EXTENSION IF EXISTS "pgcrypto";

backend/migrations/202510300000_initial_schema/up.sql

@@ -1,14 +1,17 @@
 CREATE EXTENSION IF NOT EXISTS "pgcrypto";
 
+CREATE TYPE tenant_status AS ENUM ('creating', 'active', 'suspended', 'deleting', 'error');
+
 CREATE TABLE tenants (
     id UUID PRIMARY KEY,
-    slug TEXT NOT NULL UNIQUE,
+    name TEXT NOT NULL,
     storage_root TEXT,
     quickwit_index TEXT,
-    status TEXT NOT NULL DEFAULT 'active',
     config JSONB NOT NULL DEFAULT '{}'::jsonb,
     created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    status tenant_status NOT NULL,
+    created_by UUID
 );
 
 CREATE UNIQUE INDEX tenants_storage_root_unique
@@ -22,7 +25,6 @@ CREATE UNIQUE INDEX tenants_quickwit_index_unique
 CREATE TABLE users (
     id UUID PRIMARY KEY,
     username VARCHAR(100) NOT NULL UNIQUE,
-    password_hash VARCHAR(255) NOT NULL,
     created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
     updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
 );
@@ -31,14 +33,13 @@ CREATE TABLE user_memberships (
     id UUID PRIMARY KEY,
     user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
     tenant_id UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
-    role TEXT NOT NULL,
     created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
     updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
     UNIQUE (user_id, tenant_id)
 );
 
-CREATE INDEX user_memberships_tenant_id_idx ON user_memberships (tenant_id);
-CREATE INDEX user_memberships_user_id_idx ON user_memberships (user_id);
+CREATE INDEX user_memberships_tenant_id_idx ON user_memberships(tenant_id);
+CREATE INDEX user_memberships_user_id_idx ON user_memberships(user_id);
 
 CREATE TABLE folders (
     id UUID PRIMARY KEY,
@@ -51,8 +52,12 @@ CREATE TABLE folders (
 
 CREATE INDEX idx_folders_parent ON folders(parent_id);
 CREATE INDEX folders_tenant_id_idx ON folders(tenant_id);
-CREATE UNIQUE INDEX folders_parent_name_unique_idx
-    ON folders (COALESCE(parent_id, '00000000-0000-0000-0000-000000000000'::uuid), name);
+CREATE UNIQUE INDEX folders_tenant_parent_name_unique_idx
+    ON folders (
+        tenant_id,
+        COALESCE(parent_id, '00000000-0000-0000-0000-000000000000'::uuid),
+        name
+    );
 
 CREATE TABLE documents (
     id UUID PRIMARY KEY,
@@ -70,11 +75,10 @@ CREATE TABLE documents (
     tenant_id UUID NOT NULL REFERENCES tenants(id)
 );
 
-CREATE INDEX idx_documents_folder ON documents (folder_id);
-CREATE INDEX idx_documents_deleted_at ON documents (deleted_at);
-CREATE INDEX documents_tenant_id_idx ON documents (tenant_id);
-CREATE INDEX idx_documents_current_version_id ON documents (current_version_id);
-
+CREATE INDEX idx_documents_folder ON documents(folder_id);
+CREATE INDEX idx_documents_deleted_at ON documents(deleted_at);
+CREATE INDEX documents_tenant_id_idx ON documents(tenant_id);
+CREATE INDEX idx_documents_current_version_id ON documents(current_version_id);
 CREATE INDEX idx_documents_folder_title
     ON documents (
         COALESCE(folder_id, '00000000-0000-0000-0000-000000000000'::uuid),
@@ -82,8 +86,9 @@ CREATE INDEX idx_documents_folder_title
     )
     WHERE deleted_at IS NULL;
 
-CREATE UNIQUE INDEX documents_unique_folder_filename
+CREATE UNIQUE INDEX documents_tenant_folder_filename_unique
     ON documents (
+        tenant_id,
         COALESCE(folder_id, '00000000-0000-0000-0000-000000000000'::uuid),
         filename
     )
@@ -97,14 +102,13 @@ CREATE TABLE document_versions (
     size_bytes BIGINT NOT NULL,
     checksum VARCHAR(64) NOT NULL,
     created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    operations_summary JSONB NOT NULL DEFAULT '{}'::jsonb,
     metadata JSONB NOT NULL DEFAULT '{}'::jsonb,
     tenant_id UUID NOT NULL REFERENCES tenants(id),
     CONSTRAINT document_versions_unique_version UNIQUE (document_id, version_number)
 );
 
-CREATE INDEX idx_document_versions_document ON document_versions (document_id);
-CREATE INDEX document_versions_tenant_id_idx ON document_versions (tenant_id);
+CREATE INDEX idx_document_versions_document ON document_versions(document_id);
+CREATE INDEX document_versions_tenant_id_idx ON document_versions(tenant_id);
 
 ALTER TABLE documents
     ADD CONSTRAINT documents_current_version_fk
@@ -114,13 +118,14 @@ ALTER TABLE documents
 
 CREATE TABLE tags (
     id UUID PRIMARY KEY,
-    label VARCHAR(100) NOT NULL UNIQUE,
+    label VARCHAR(100) NOT NULL,
     color VARCHAR(7),
     created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
     tenant_id UUID NOT NULL REFERENCES tenants(id)
 );
 
-CREATE INDEX tags_tenant_id_idx ON tags (tenant_id);
+CREATE UNIQUE INDEX tags_tenant_label_unique ON tags(tenant_id, label);
+CREATE INDEX tags_tenant_id_idx ON tags(tenant_id);
 
 CREATE TABLE document_tags (
     document_id UUID NOT NULL REFERENCES documents(id) ON DELETE CASCADE,
@@ -131,8 +136,8 @@ CREATE TABLE document_tags (
     PRIMARY KEY (document_id, tag_id)
 );
 
-CREATE INDEX idx_document_tags_tag ON document_tags (tag_id);
-CREATE INDEX document_tags_tenant_id_idx ON document_tags (tenant_id);
+CREATE INDEX idx_document_tags_tag ON document_tags(tag_id);
+CREATE INDEX document_tags_tenant_id_idx ON document_tags(tenant_id);
 
 CREATE TABLE correspondents (
     id UUID PRIMARY KEY,
@@ -140,27 +145,25 @@ CREATE TABLE correspondents (
     metadata JSONB NOT NULL DEFAULT '{}'::jsonb,
     created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
     updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    tenant_id UUID NOT NULL REFERENCES tenants(id),
-    CONSTRAINT correspondents_name_unique UNIQUE (name)
+    tenant_id UUID NOT NULL REFERENCES tenants(id)
 );
 
-CREATE INDEX correspondents_tenant_id_idx ON correspondents (tenant_id);
+CREATE UNIQUE INDEX correspondents_tenant_name_unique
+    ON correspondents (tenant_id, name);
+CREATE INDEX correspondents_tenant_id_idx ON correspondents(tenant_id);
 
 CREATE TABLE document_correspondents (
     document_id UUID NOT NULL REFERENCES documents(id) ON DELETE CASCADE,
     correspondent_id UUID NOT NULL REFERENCES correspondents(id) ON DELETE CASCADE,
-    role VARCHAR(32) NOT NULL,
     assigned_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
     assigned_by UUID REFERENCES users(id),
     tenant_id UUID NOT NULL REFERENCES tenants(id),
-    PRIMARY KEY (document_id, correspondent_id, role),
-    CONSTRAINT document_correspondents_role_check CHECK (role IN ('sender', 'receiver', 'other'))
+    PRIMARY KEY (document_id, correspondent_id)
 );
 
-CREATE INDEX idx_document_correspondents_document ON document_correspondents (document_id);
-CREATE INDEX idx_document_correspondents_correspondent ON document_correspondents (correspondent_id);
-CREATE INDEX idx_document_correspondents_role ON document_correspondents (role);
-CREATE INDEX document_correspondents_tenant_id_idx ON document_correspondents (tenant_id);
+CREATE INDEX idx_document_correspondents_document ON document_correspondents(document_id);
+CREATE INDEX idx_document_correspondents_correspondent ON document_correspondents(correspondent_id);
+CREATE INDEX document_correspondents_tenant_id_idx ON document_correspondents(tenant_id);
 
 CREATE TABLE document_assets (
     id UUID PRIMARY KEY,
@@ -175,9 +178,9 @@ CREATE TABLE document_assets (
     CONSTRAINT document_assets_cardinality_positive CHECK (cardinality IS NULL OR cardinality >= 1)
 );
 
-CREATE INDEX idx_document_assets_version ON document_assets (document_version_id);
-CREATE INDEX idx_document_assets_type ON document_assets (asset_type);
-CREATE INDEX document_assets_tenant_id_idx ON document_assets (tenant_id);
+CREATE INDEX idx_document_assets_version ON document_assets(document_version_id);
+CREATE INDEX idx_document_assets_type ON document_assets(asset_type);
+CREATE INDEX document_assets_tenant_id_idx ON document_assets(tenant_id);
 
 CREATE TABLE document_asset_objects (
     id UUID PRIMARY KEY,
@@ -191,10 +194,8 @@ CREATE TABLE document_asset_objects (
 );
 
 CREATE INDEX idx_document_asset_objects_asset_ordinal
-    ON document_asset_objects (asset_id, ordinal);
-
-CREATE INDEX document_asset_objects_tenant_id_idx
-    ON document_asset_objects (tenant_id);
+    ON document_asset_objects(asset_id, ordinal);
+CREATE INDEX document_asset_objects_tenant_id_idx ON document_asset_objects(tenant_id);
 
 CREATE TABLE jobs (
     id UUID PRIMARY KEY,
@@ -210,9 +211,9 @@ CREATE TABLE jobs (
     CONSTRAINT jobs_status_check CHECK (status IN ('queued', 'processing', 'succeeded', 'failed'))
 );
 
-CREATE INDEX idx_jobs_status_run_after ON jobs (status, run_after);
-CREATE INDEX idx_jobs_job_type ON jobs (job_type);
-CREATE INDEX jobs_tenant_id_idx ON jobs (tenant_id);
+CREATE INDEX idx_jobs_status_run_after ON jobs(status, run_after);
+CREATE INDEX idx_jobs_job_type ON jobs(job_type);
+CREATE INDEX jobs_tenant_id_idx ON jobs(tenant_id);
 
 CREATE OR REPLACE FUNCTION touch_jobs_updated_at()
 RETURNS TRIGGER AS $$
@@ -239,6 +240,56 @@ CREATE TABLE refresh_tokens (
     tenant_id UUID NOT NULL REFERENCES tenants(id)
 );
 
-CREATE INDEX idx_refresh_tokens_user_id ON refresh_tokens (user_id);
-CREATE INDEX idx_refresh_tokens_token_hash ON refresh_tokens (token_hash);
-CREATE INDEX refresh_tokens_tenant_id_idx ON refresh_tokens (tenant_id);
+CREATE INDEX idx_refresh_tokens_user_id ON refresh_tokens(user_id);
+CREATE INDEX idx_refresh_tokens_token_hash ON refresh_tokens(token_hash);
+CREATE INDEX refresh_tokens_tenant_id_idx ON refresh_tokens(tenant_id);
+
+CREATE TABLE webdav_tokens (
+    id UUID PRIMARY KEY,
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    tenant_id UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
+    token_prefix TEXT NOT NULL,
+    token_hash TEXT NOT NULL,
+    label TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    last_used_at TIMESTAMPTZ,
+    expires_at TIMESTAMPTZ,
+    revoked_at TIMESTAMPTZ
+);
+
+CREATE UNIQUE INDEX webdav_tokens_token_prefix_key ON webdav_tokens(token_prefix);
+CREATE INDEX webdav_tokens_user_tenant_idx ON webdav_tokens(user_id, tenant_id);
+
+CREATE TABLE user_passkeys (
+    id UUID PRIMARY KEY,
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    credential_id BYTEA NOT NULL UNIQUE,
+    public_key BYTEA NOT NULL,
+    credential JSONB NOT NULL,
+    sign_count BIGINT NOT NULL,
+    transports TEXT[] NOT NULL DEFAULT '{}'::text[],
+    aaguid UUID,
+    nickname TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    last_used_at TIMESTAMPTZ,
+    revoked_at TIMESTAMPTZ,
+    revoked_by UUID,
+    revoked_reason TEXT
+);
+
+CREATE INDEX user_passkeys_user_id_idx ON user_passkeys(user_id);
+
+CREATE TABLE webauthn_challenges (
+    id UUID PRIMARY KEY,
+    user_id UUID REFERENCES users(id) ON DELETE CASCADE,
+    purpose TEXT NOT NULL,
+    challenge BYTEA NOT NULL,
+    state BYTEA NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    expires_at TIMESTAMPTZ NOT NULL,
+    CONSTRAINT webauthn_challenges_purpose_check CHECK (purpose IN ('registration', 'authentication'))
+);
+
+CREATE INDEX webauthn_challenges_user_id_idx ON webauthn_challenges(user_id);
+CREATE INDEX webauthn_challenges_expires_at_idx ON webauthn_challenges(expires_at);

backend/migrations/202510300001_rename_document_uploaded_at/down.sql

@@ -0,0 +1,2 @@
+ALTER TABLE documents
+    RENAME COLUMN created_at TO uploaded_at;

backend/migrations/202510300001_rename_document_uploaded_at/up.sql

@@ -0,0 +1,2 @@
+ALTER TABLE documents
+    RENAME COLUMN uploaded_at TO created_at;

backend/migrations/202510310000_create_magic_tokens/down.sql

@@ -0,0 +1,2 @@
+DROP TABLE magic_tokens;
+DROP TYPE magic_token_kind;

backend/migrations/202510310000_create_magic_tokens/up.sql

@@ -0,0 +1,18 @@
+CREATE TYPE magic_token_kind AS ENUM ('email_login', 'demo_login');
+
+CREATE TABLE magic_tokens (
+    id UUID PRIMARY KEY,
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    kind magic_token_kind NOT NULL,
+    token_hash VARCHAR NOT NULL UNIQUE,
+    metadata JSONB NOT NULL DEFAULT '{}'::jsonb,
+    expires_at TIMESTAMPTZ NOT NULL,
+    max_uses INTEGER,
+    used_count INTEGER NOT NULL DEFAULT 0,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    created_by UUID REFERENCES users(id) ON DELETE SET NULL,
+    last_used_at TIMESTAMPTZ
+);
+
+CREATE INDEX magic_tokens_token_hash_idx ON magic_tokens (token_hash);
+CREATE INDEX magic_tokens_expires_at_idx ON magic_tokens (expires_at);

backend/migrations/202510310100_split_schemas/down.sql

@@ -0,0 +1,28 @@
+-- Move tables and types back to the public schema
+ALTER TABLE tenant.webdav_tokens SET SCHEMA public;
+ALTER TABLE tenant.user_memberships SET SCHEMA public;
+ALTER TABLE tenant.refresh_tokens SET SCHEMA public;
+ALTER TABLE tenant.tags SET SCHEMA public;
+ALTER TABLE tenant.document_correspondents SET SCHEMA public;
+ALTER TABLE tenant.document_tags SET SCHEMA public;
+ALTER TABLE tenant.document_asset_objects SET SCHEMA public;
+ALTER TABLE tenant.document_assets SET SCHEMA public;
+ALTER TABLE tenant.document_versions SET SCHEMA public;
+ALTER TABLE tenant.documents SET SCHEMA public;
+ALTER TABLE tenant.folders SET SCHEMA public;
+ALTER TABLE tenant.correspondents SET SCHEMA public;
+
+ALTER FUNCTION shared.touch_jobs_updated_at() SET SCHEMA public;
+
+ALTER TABLE shared.magic_tokens SET SCHEMA public;
+ALTER TABLE shared.jobs SET SCHEMA public;
+ALTER TABLE shared.webauthn_challenges SET SCHEMA public;
+ALTER TABLE shared.user_passkeys SET SCHEMA public;
+ALTER TABLE shared.users SET SCHEMA public;
+ALTER TABLE shared.tenants SET SCHEMA public;
+
+ALTER TYPE shared.magic_token_kind SET SCHEMA public;
+ALTER TYPE shared.tenant_status SET SCHEMA public;
+
+DROP SCHEMA IF EXISTS tenant CASCADE;
+DROP SCHEMA IF EXISTS shared CASCADE;

backend/migrations/202510310100_split_schemas/up.sql

@@ -0,0 +1,45 @@
+CREATE SCHEMA IF NOT EXISTS shared;
+CREATE SCHEMA IF NOT EXISTS tenant;
+
+-- Move global types and tables into the shared schema
+ALTER TYPE tenant_status SET SCHEMA shared;
+ALTER TYPE magic_token_kind SET SCHEMA shared;
+
+ALTER TABLE tenants SET SCHEMA shared;
+ALTER TABLE users SET SCHEMA shared;
+ALTER TABLE user_passkeys SET SCHEMA shared;
+ALTER TABLE webauthn_challenges SET SCHEMA shared;
+ALTER TABLE jobs SET SCHEMA shared;
+ALTER TABLE magic_tokens SET SCHEMA shared;
+
+ALTER FUNCTION touch_jobs_updated_at() SET SCHEMA shared;
+
+-- Move tenant-scoped tables into the tenant schema
+ALTER TABLE correspondents SET SCHEMA tenant;
+ALTER TABLE folders SET SCHEMA tenant;
+ALTER TABLE documents SET SCHEMA tenant;
+ALTER TABLE document_versions SET SCHEMA tenant;
+ALTER TABLE document_assets SET SCHEMA tenant;
+ALTER TABLE document_asset_objects SET SCHEMA tenant;
+ALTER TABLE document_tags SET SCHEMA tenant;
+ALTER TABLE document_correspondents SET SCHEMA tenant;
+ALTER TABLE tags SET SCHEMA tenant;
+ALTER TABLE refresh_tokens SET SCHEMA tenant;
+ALTER TABLE user_memberships SET SCHEMA tenant;
+ALTER TABLE webdav_tokens SET SCHEMA tenant;
+
+DO $$
+BEGIN
+    IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'papercrate_app') THEN
+        RETURN;
+    END IF;
+
+    GRANT USAGE ON SCHEMA shared TO papercrate_app;
+    GRANT USAGE ON SCHEMA tenant TO papercrate_app;
+    GRANT SELECT ON ALL TABLES IN SCHEMA shared TO papercrate_app;
+    GRANT SELECT, INSERT, UPDATE, DELETE ON ALL TABLES IN SCHEMA tenant TO papercrate_app;
+
+    ALTER DEFAULT PRIVILEGES IN SCHEMA shared GRANT SELECT ON TABLES TO papercrate_app;
+    ALTER DEFAULT PRIVILEGES IN SCHEMA tenant GRANT SELECT, INSERT, UPDATE, DELETE ON TABLES TO papercrate_app;
+END
+$$;

backend/migrations/202510310200_enable_rls/down.sql

@@ -0,0 +1,51 @@
+DROP POLICY IF EXISTS tenant_membership_select_policy ON tenant.user_memberships;
+ALTER TABLE tenant.user_memberships NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.user_memberships DISABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS tenant_isolation_policy ON tenant.webdav_tokens;
+ALTER TABLE tenant.webdav_tokens NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.webdav_tokens DISABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS tenant_isolation_policy ON tenant.tags;
+ALTER TABLE tenant.tags NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.tags DISABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS tenant_refresh_token_policy ON tenant.refresh_tokens;
+ALTER TABLE tenant.refresh_tokens NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.refresh_tokens DISABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS tenant_isolation_policy ON tenant.folders;
+ALTER TABLE tenant.folders NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.folders DISABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS tenant_isolation_policy ON tenant.documents;
+ALTER TABLE tenant.documents NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.documents DISABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS tenant_isolation_policy ON tenant.document_versions;
+ALTER TABLE tenant.document_versions NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.document_versions DISABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS tenant_isolation_policy ON tenant.document_tags;
+ALTER TABLE tenant.document_tags NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.document_tags DISABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS tenant_isolation_policy ON tenant.document_correspondents;
+ALTER TABLE tenant.document_correspondents NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.document_correspondents DISABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS tenant_isolation_policy ON tenant.document_assets;
+ALTER TABLE tenant.document_assets NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.document_assets DISABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS tenant_isolation_policy ON tenant.document_asset_objects;
+ALTER TABLE tenant.document_asset_objects NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.document_asset_objects DISABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS tenant_isolation_policy ON tenant.correspondents;
+ALTER TABLE tenant.correspondents NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.correspondents DISABLE ROW LEVEL SECURITY;
+
+DROP FUNCTION IF EXISTS shared.current_refresh_token_hash();
+DROP FUNCTION IF EXISTS shared.current_user_id();
+DROP FUNCTION IF EXISTS shared.current_tenant_id();

backend/migrations/202510310200_enable_rls/up.sql

@@ -0,0 +1,69 @@
+CREATE OR REPLACE FUNCTION shared.current_tenant_id() RETURNS uuid AS $$
+    SELECT CASE
+        WHEN setting IS NULL OR setting = '' THEN NULL
+        ELSE setting::uuid
+    END
+    FROM (SELECT current_setting('papercrate.tenant_id', true) AS setting) s;
+$$ LANGUAGE SQL STABLE;
+
+CREATE OR REPLACE FUNCTION shared.current_user_id() RETURNS uuid AS $$
+    SELECT CASE
+        WHEN setting IS NULL OR setting = '' THEN NULL
+        ELSE setting::uuid
+    END
+    FROM (SELECT current_setting('papercrate.user_id', true) AS setting) s;
+$$ LANGUAGE SQL STABLE;
+
+CREATE OR REPLACE FUNCTION shared.current_refresh_token_hash() RETURNS text AS $$
+    SELECT NULLIF(current_setting('papercrate.refresh_token_hash', true), '')
+$$ LANGUAGE SQL STABLE;
+
+-- Helper to create tenant isolation policy
+CREATE OR REPLACE FUNCTION shared.ensure_tenant_policy(table_reg regclass) RETURNS void AS $$
+BEGIN
+    EXECUTE format('ALTER TABLE %s ENABLE ROW LEVEL SECURITY', table_reg);
+    EXECUTE format('ALTER TABLE %s FORCE ROW LEVEL SECURITY', table_reg);
+    EXECUTE format(
+        'CREATE POLICY tenant_isolation_policy ON %s USING (tenant_id = shared.current_tenant_id()) WITH CHECK (tenant_id = shared.current_tenant_id())',
+        table_reg
+    );
+END;
+$$ LANGUAGE plpgsql;
+
+SELECT shared.ensure_tenant_policy('tenant.correspondents');
+SELECT shared.ensure_tenant_policy('tenant.document_asset_objects');
+SELECT shared.ensure_tenant_policy('tenant.document_assets');
+SELECT shared.ensure_tenant_policy('tenant.document_correspondents');
+SELECT shared.ensure_tenant_policy('tenant.document_tags');
+SELECT shared.ensure_tenant_policy('tenant.document_versions');
+SELECT shared.ensure_tenant_policy('tenant.documents');
+SELECT shared.ensure_tenant_policy('tenant.folders');
+SELECT shared.ensure_tenant_policy('tenant.tags');
+SELECT shared.ensure_tenant_policy('tenant.webdav_tokens');
+
+-- user_memberships has a special read policy to allow tenant discovery during login
+ALTER TABLE tenant.user_memberships ENABLE ROW LEVEL SECURITY;
+ALTER TABLE tenant.user_memberships FORCE ROW LEVEL SECURITY;
+CREATE POLICY tenant_membership_select_policy ON tenant.user_memberships
+    USING (
+        tenant_id = shared.current_tenant_id()
+        OR (
+            shared.current_user_id() IS NOT NULL
+            AND user_id = shared.current_user_id()
+        )
+    )
+    WITH CHECK (tenant_id = shared.current_tenant_id());
+
+ALTER TABLE tenant.refresh_tokens ENABLE ROW LEVEL SECURITY;
+ALTER TABLE tenant.refresh_tokens FORCE ROW LEVEL SECURITY;
+CREATE POLICY tenant_refresh_token_policy ON tenant.refresh_tokens
+    USING (
+        tenant_id = shared.current_tenant_id()
+        OR (
+            shared.current_refresh_token_hash() IS NOT NULL
+            AND token_hash = shared.current_refresh_token_hash()
+        )
+    )
+    WITH CHECK (tenant_id = shared.current_tenant_id());
+
+DROP FUNCTION shared.ensure_tenant_policy(regclass);

backend/migrations/202510310201_enable_webdav_token_rls/down.sql

@@ -0,0 +1,5 @@
+DROP POLICY IF EXISTS tenant_webdav_token_policy ON tenant.webdav_tokens;
+ALTER TABLE tenant.webdav_tokens NO FORCE ROW LEVEL SECURITY;
+ALTER TABLE tenant.webdav_tokens DISABLE ROW LEVEL SECURITY;
+
+DROP FUNCTION IF EXISTS shared.current_webdav_token_prefix();

backend/migrations/202510310201_enable_webdav_token_rls/up.sql

@@ -0,0 +1,15 @@
+CREATE OR REPLACE FUNCTION shared.current_webdav_token_prefix() RETURNS text AS $$
+    SELECT NULLIF(current_setting('papercrate.webdav_token_prefix', true), '')
+$$ LANGUAGE SQL STABLE;
+
+ALTER TABLE tenant.webdav_tokens ENABLE ROW LEVEL SECURITY;
+ALTER TABLE tenant.webdav_tokens FORCE ROW LEVEL SECURITY;
+CREATE POLICY tenant_webdav_token_policy ON tenant.webdav_tokens
+    USING (
+        tenant_id = shared.current_tenant_id()
+        OR (
+            shared.current_webdav_token_prefix() IS NOT NULL
+            AND token_prefix = shared.current_webdav_token_prefix()
+        )
+    )
+    WITH CHECK (tenant_id = shared.current_tenant_id());

backend/migrations/202511010000_api_tokens/down.sql

@@ -0,0 +1,31 @@
+DROP POLICY IF EXISTS tenant_api_token_policy ON tenant.api_tokens;
+DROP FUNCTION IF EXISTS shared.current_api_token_prefix();
+
+ALTER TABLE tenant.api_tokens DISABLE ROW LEVEL SECURITY;
+ALTER TABLE tenant.api_tokens NO FORCE ROW LEVEL SECURITY;
+
+ALTER TABLE tenant.api_tokens
+    DROP COLUMN IF EXISTS capabilities;
+
+DROP TYPE IF EXISTS shared.api_token_capability;
+
+ALTER TABLE tenant.api_tokens RENAME TO webdav_tokens;
+ALTER INDEX tenant.api_tokens_token_prefix_key RENAME TO webdav_tokens_token_prefix_key;
+ALTER INDEX tenant.api_tokens_user_tenant_idx RENAME TO webdav_tokens_user_tenant_idx;
+
+CREATE OR REPLACE FUNCTION shared.current_webdav_token_prefix() RETURNS text AS $$
+    SELECT NULLIF(current_setting('papercrate.webdav_token_prefix', true), '')
+$$ LANGUAGE SQL STABLE;
+
+ALTER TABLE tenant.webdav_tokens ENABLE ROW LEVEL SECURITY;
+ALTER TABLE tenant.webdav_tokens FORCE ROW LEVEL SECURITY;
+
+CREATE POLICY tenant_webdav_token_policy ON tenant.webdav_tokens
+    USING (
+        tenant_id = shared.current_tenant_id()
+        OR (
+            shared.current_webdav_token_prefix() IS NOT NULL
+            AND token_prefix = shared.current_webdav_token_prefix()
+        )
+    )
+    WITH CHECK (tenant_id = shared.current_tenant_id());

backend/migrations/202511010000_api_tokens/up.sql

@@ -0,0 +1,28 @@
+ALTER TABLE tenant.webdav_tokens RENAME TO api_tokens;
+ALTER INDEX tenant.webdav_tokens_token_prefix_key RENAME TO api_tokens_token_prefix_key;
+ALTER INDEX tenant.webdav_tokens_user_tenant_idx RENAME TO api_tokens_user_tenant_idx;
+
+DROP POLICY IF EXISTS tenant_webdav_token_policy ON tenant.api_tokens;
+DROP FUNCTION IF EXISTS shared.current_webdav_token_prefix();
+
+CREATE TYPE shared.api_token_capability AS ENUM ('api', 'webdav');
+
+ALTER TABLE tenant.api_tokens
+    ADD COLUMN capabilities shared.api_token_capability[] NOT NULL DEFAULT ARRAY['webdav']::shared.api_token_capability[];
+
+ALTER TABLE tenant.api_tokens ENABLE ROW LEVEL SECURITY;
+ALTER TABLE tenant.api_tokens FORCE ROW LEVEL SECURITY;
+
+CREATE OR REPLACE FUNCTION shared.current_api_token_prefix() RETURNS text AS $$
+    SELECT NULLIF(current_setting('papercrate.api_token_prefix', true), '')
+$$ LANGUAGE SQL STABLE;
+
+CREATE POLICY tenant_api_token_policy ON tenant.api_tokens
+    USING (
+        tenant_id = shared.current_tenant_id()
+        OR (
+            shared.current_api_token_prefix() IS NOT NULL
+            AND token_prefix = shared.current_api_token_prefix()
+        )
+    )
+    WITH CHECK (tenant_id = shared.current_tenant_id());

backend/migrations/202511010001_rename_refresh_tokens_to_user_sessions/down.sql

@@ -0,0 +1,26 @@
+CREATE OR REPLACE FUNCTION shared.current_refresh_token_hash() RETURNS text AS $$
+    SELECT NULLIF(current_setting('papercrate.refresh_token_hash', true), '')
+$$ LANGUAGE SQL STABLE;
+
+ALTER POLICY tenant_user_session_policy ON tenant.user_sessions
+    USING (
+        tenant_id = shared.current_tenant_id()
+        OR (
+            shared.current_refresh_token_hash() IS NOT NULL
+            AND token_hash = shared.current_refresh_token_hash()
+        )
+    );
+
+ALTER POLICY tenant_user_session_policy ON tenant.user_sessions
+    WITH CHECK (tenant_id = shared.current_tenant_id());
+
+ALTER POLICY tenant_user_session_policy ON tenant.user_sessions
+    RENAME TO tenant_refresh_token_policy;
+
+ALTER INDEX tenant.idx_user_sessions_user_id RENAME TO idx_refresh_tokens_user_id;
+ALTER INDEX tenant.idx_user_sessions_token_hash RENAME TO idx_refresh_tokens_token_hash;
+ALTER INDEX tenant.user_sessions_tenant_id_idx RENAME TO refresh_tokens_tenant_id_idx;
+
+ALTER TABLE tenant.user_sessions RENAME TO refresh_tokens;
+
+DROP FUNCTION IF EXISTS shared.current_user_session_hash();

backend/migrations/202511010001_rename_refresh_tokens_to_user_sessions/up.sql

@@ -0,0 +1,26 @@
+ALTER TABLE tenant.refresh_tokens RENAME TO user_sessions;
+
+ALTER INDEX tenant.idx_refresh_tokens_user_id RENAME TO idx_user_sessions_user_id;
+ALTER INDEX tenant.idx_refresh_tokens_token_hash RENAME TO idx_user_sessions_token_hash;
+ALTER INDEX tenant.refresh_tokens_tenant_id_idx RENAME TO user_sessions_tenant_id_idx;
+
+ALTER POLICY tenant_refresh_token_policy ON tenant.user_sessions
+    RENAME TO tenant_user_session_policy;
+
+CREATE OR REPLACE FUNCTION shared.current_user_session_hash() RETURNS text AS $$
+    SELECT NULLIF(current_setting('papercrate.user_session_hash', true), '')
+$$ LANGUAGE SQL STABLE;
+
+ALTER POLICY tenant_user_session_policy ON tenant.user_sessions
+    USING (
+        tenant_id = shared.current_tenant_id()
+        OR (
+            shared.current_user_session_hash() IS NOT NULL
+            AND token_hash = shared.current_user_session_hash()
+        )
+    );
+
+ALTER POLICY tenant_user_session_policy ON tenant.user_sessions
+    WITH CHECK (tenant_id = shared.current_tenant_id());
+
+DROP FUNCTION IF EXISTS shared.current_refresh_token_hash();

backend/migrations/202511010002_set_assigned_by_on_delete_set_null/down.sql

@@ -0,0 +1,13 @@
+ALTER TABLE tenant.document_tags
+    DROP CONSTRAINT IF EXISTS document_tags_assigned_by_fkey,
+    ADD CONSTRAINT document_tags_assigned_by_fkey
+        FOREIGN KEY (assigned_by)
+        REFERENCES shared.users (id)
+        ON DELETE NO ACTION;
+
+ALTER TABLE tenant.document_correspondents
+    DROP CONSTRAINT IF EXISTS document_correspondents_assigned_by_fkey,
+    ADD CONSTRAINT document_correspondents_assigned_by_fkey
+        FOREIGN KEY (assigned_by)
+        REFERENCES shared.users (id)
+        ON DELETE NO ACTION;

backend/migrations/202511010002_set_assigned_by_on_delete_set_null/up.sql

@@ -0,0 +1,13 @@
+ALTER TABLE tenant.document_tags
+    DROP CONSTRAINT IF EXISTS document_tags_assigned_by_fkey,
+    ADD CONSTRAINT document_tags_assigned_by_fkey
+        FOREIGN KEY (assigned_by)
+        REFERENCES shared.users (id)
+        ON DELETE SET NULL;
+
+ALTER TABLE tenant.document_correspondents
+    DROP CONSTRAINT IF EXISTS document_correspondents_assigned_by_fkey,
+    ADD CONSTRAINT document_correspondents_assigned_by_fkey
+        FOREIGN KEY (assigned_by)
+        REFERENCES shared.users (id)
+        ON DELETE SET NULL;

backend/migrations/202511010003_capability_sets/down.sql

@@ -0,0 +1,28 @@
+CREATE TYPE api_token_capability AS ENUM ('api', 'webdav');
+
+ALTER TABLE tenant.api_tokens
+    ADD COLUMN capabilities api_token_capability[] NOT NULL DEFAULT ARRAY[]::api_token_capability[];
+
+UPDATE tenant.api_tokens t
+SET capabilities = ARRAY['api']::api_token_capability[]
+FROM tenant.capability_sets cs
+WHERE t.capability_set_id = cs.id
+  AND cs.slug = 'owner';
+
+UPDATE tenant.api_tokens t
+SET capabilities = ARRAY['webdav']::api_token_capability[]
+FROM tenant.capability_sets cs
+WHERE t.capability_set_id = cs.id
+  AND cs.slug = 'webdav'
+  AND (t.capabilities IS NULL OR array_length(t.capabilities, 1) = 0);
+
+ALTER TABLE tenant.api_tokens
+    DROP COLUMN capability_set_id;
+
+ALTER TABLE tenant.user_memberships
+    DROP COLUMN capability_set_id;
+
+DROP TABLE IF EXISTS tenant.capability_set_capabilities;
+DROP TABLE IF EXISTS tenant.capability_sets;
+
+DROP TYPE IF EXISTS api_capability;

backend/migrations/202511010003_capability_sets/up.sql

@@ -0,0 +1,158 @@
+CREATE TYPE api_capability AS ENUM (
+    'documents:read',
+    'documents:edit',
+    'documents:write',
+    'documents:upload',
+    'folders:read',
+    'folders:edit',
+    'folders:write',
+    'tags:read',
+    'tags:edit',
+    'tags:write',
+    'correspondents:read',
+    'correspondents:edit',
+    'correspondents:write',
+    'profile:read',
+    'profile:write',
+    'webdav:read',
+    'webdav:write',
+    'capability_sets:read',
+    'capability_sets:write'
+);
+
+CREATE TABLE tenant.capability_sets (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL REFERENCES shared.tenants(id) ON DELETE CASCADE,
+    slug TEXT NOT NULL,
+    cap_version INT NOT NULL DEFAULT 1,
+    is_system BOOLEAN NOT NULL DEFAULT FALSE,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    UNIQUE (tenant_id, slug)
+);
+
+CREATE TABLE tenant.capability_set_capabilities (
+    capability_set_id UUID NOT NULL REFERENCES tenant.capability_sets(id) ON DELETE CASCADE,
+    capability api_capability NOT NULL,
+    PRIMARY KEY (capability_set_id, capability)
+);
+
+ALTER TABLE tenant.api_tokens
+    ADD COLUMN capability_set_id UUID REFERENCES tenant.capability_sets(id);
+
+ALTER TABLE tenant.user_memberships
+    ADD COLUMN capability_set_id UUID REFERENCES tenant.capability_sets(id);
+
+WITH owner_sets AS (
+    INSERT INTO tenant.capability_sets (tenant_id, slug, is_system)
+    SELECT id, 'owner', TRUE
+    FROM shared.tenants
+    RETURNING id, tenant_id
+),
+user_sets AS (
+    INSERT INTO tenant.capability_sets (tenant_id, slug, is_system)
+    SELECT id, 'user', TRUE
+    FROM shared.tenants
+    RETURNING id, tenant_id
+),
+readonly_sets AS (
+    INSERT INTO tenant.capability_sets (tenant_id, slug, is_system)
+    SELECT id, 'readonly', TRUE
+    FROM shared.tenants
+    RETURNING id, tenant_id
+),
+webdav_sets AS (
+    INSERT INTO tenant.capability_sets (tenant_id, slug, is_system)
+    SELECT id, 'webdav', TRUE
+    FROM shared.tenants
+    RETURNING id, tenant_id
+)
+INSERT INTO tenant.capability_set_capabilities (capability_set_id, capability)
+SELECT set_id,
+       capability
+FROM (
+    SELECT os.id AS set_id,
+           UNNEST(ARRAY[
+               'documents:read'::api_capability,
+               'documents:edit'::api_capability,
+               'documents:write'::api_capability,
+               'documents:upload'::api_capability,
+               'folders:read'::api_capability,
+               'folders:edit'::api_capability,
+               'folders:write'::api_capability,
+               'tags:read'::api_capability,
+               'tags:edit'::api_capability,
+               'tags:write'::api_capability,
+               'correspondents:read'::api_capability,
+               'correspondents:edit'::api_capability,
+               'correspondents:write'::api_capability,
+               'profile:read'::api_capability,
+               'profile:write'::api_capability,
+               'webdav:read'::api_capability,
+               'webdav:write'::api_capability,
+               'capability_sets:read'::api_capability,
+               'capability_sets:write'::api_capability
+           ]) AS capability
+    FROM owner_sets os
+    UNION ALL
+    SELECT us.id,
+           UNNEST(ARRAY[
+               'documents:read'::api_capability,
+               'documents:edit'::api_capability,
+               'documents:write'::api_capability,
+               'documents:upload'::api_capability,
+               'folders:read'::api_capability,
+               'folders:edit'::api_capability,
+               'folders:write'::api_capability,
+               'tags:read'::api_capability,
+               'tags:edit'::api_capability,
+               'tags:write'::api_capability,
+               'correspondents:read'::api_capability,
+               'correspondents:edit'::api_capability,
+               'correspondents:write'::api_capability,
+               'profile:read'::api_capability,
+               'profile:write'::api_capability
+           ]) AS capability
+    FROM user_sets us
+    UNION ALL
+    SELECT rs.id,
+           UNNEST(ARRAY[
+               'documents:read'::api_capability,
+               'folders:read'::api_capability,
+               'tags:read'::api_capability,
+               'correspondents:read'::api_capability,
+               'webdav:read'::api_capability
+           ]) AS capability
+    FROM readonly_sets rs
+    UNION ALL
+    SELECT ws.id,
+           UNNEST(ARRAY['webdav:read'::api_capability]) AS capability
+    FROM webdav_sets ws
+) seeded;
+
+UPDATE tenant.user_memberships um
+SET capability_set_id = cs.id
+FROM tenant.capability_sets cs
+WHERE cs.tenant_id = um.tenant_id
+  AND cs.slug = 'owner';
+
+UPDATE tenant.api_tokens t
+SET capability_set_id = cs.id
+FROM tenant.capability_sets cs
+WHERE cs.tenant_id = t.tenant_id
+  AND cs.slug = 'owner';
+
+UPDATE tenant.api_tokens t
+SET capability_set_id = cs.id
+FROM tenant.capability_sets cs
+WHERE cs.tenant_id = t.tenant_id
+  AND cs.slug = 'webdav'
+  AND t.capability_set_id IS NULL;
+
+ALTER TABLE tenant.api_tokens
+    ALTER COLUMN capability_set_id SET NOT NULL;
+
+ALTER TABLE tenant.api_tokens
+    DROP COLUMN capabilities;
+
+DROP TYPE IF EXISTS api_token_capability;

backend/migrations/202511010004_purge_document_jobs/down.sql

@@ -0,0 +1 @@
+DROP INDEX IF EXISTS shared.jobs_purge_document_pending_unique;

backend/migrations/202511010004_purge_document_jobs/up.sql

@@ -0,0 +1,8 @@
+CREATE UNIQUE INDEX jobs_purge_document_pending_unique
+    ON shared.jobs (
+        tenant_id,
+        ((payload ->> 'document_id')::uuid)
+    )
+    WHERE job_type = 'purge-document'
+      AND payload ? 'document_id'
+      AND status IN ('queued', 'processing');

backend/migrations/202511010005_documents_ordering_indexes/down.sql

@@ -0,0 +1,5 @@
+DROP INDEX IF EXISTS tenant.idx_documents_tenant_folder_updated_at;
+DROP INDEX IF EXISTS tenant.idx_documents_tenant_folder_created_at;
+DROP INDEX IF EXISTS tenant.idx_documents_tenant_folder_issued_at;
+DROP INDEX IF EXISTS tenant.idx_documents_tenant_folder_title_order;
+DROP COLLATION IF EXISTS unicode_ci;

backend/migrations/202511010005_documents_ordering_indexes/up.sql

@@ -0,0 +1,37 @@
+CREATE COLLATION IF NOT EXISTS unicode_ci
+    (provider = icu, locale = 'und-u-ks-level2');
+
+CREATE INDEX idx_documents_tenant_folder_title_order
+    ON tenant.documents (
+        tenant_id,
+        COALESCE(folder_id, '00000000-0000-0000-0000-000000000000'::uuid),
+        title COLLATE "unicode_ci"
+    )
+    WHERE deleted_at IS NULL;
+
+CREATE INDEX idx_documents_tenant_folder_issued_at
+    ON tenant.documents (
+        tenant_id,
+        COALESCE(folder_id, '00000000-0000-0000-0000-000000000000'::uuid),
+        issued_at,
+        title COLLATE "unicode_ci"
+    )
+    WHERE deleted_at IS NULL;
+
+CREATE INDEX idx_documents_tenant_folder_created_at
+    ON tenant.documents (
+        tenant_id,
+        COALESCE(folder_id, '00000000-0000-0000-0000-000000000000'::uuid),
+        created_at,
+        title COLLATE "unicode_ci"
+    )
+    WHERE deleted_at IS NULL;
+
+CREATE INDEX idx_documents_tenant_folder_updated_at
+    ON tenant.documents (
+        tenant_id,
+        COALESCE(folder_id, '00000000-0000-0000-0000-000000000000'::uuid),
+        updated_at,
+        title COLLATE "unicode_ci"
+    )
+    WHERE deleted_at IS NULL;

backend/migrations/202511110000_make_jobs_tenant_nullable/down.sql

@@ -0,0 +1,13 @@
+ALTER TABLE shared.jobs
+    DROP CONSTRAINT jobs_tenant_id_fkey;
+
+ALTER TABLE shared.jobs
+    ALTER COLUMN tenant_id SET NOT NULL;
+
+ALTER TABLE shared.jobs
+    ADD CONSTRAINT jobs_tenant_id_fkey
+    FOREIGN KEY (tenant_id)
+    REFERENCES shared.tenants(id);
+
+ALTER TABLE shared.jobs
+    DROP COLUMN result;

backend/migrations/202511110000_make_jobs_tenant_nullable/up.sql

@@ -0,0 +1,14 @@
+ALTER TABLE shared.jobs
+    ALTER COLUMN tenant_id DROP NOT NULL;
+
+ALTER TABLE shared.jobs
+    DROP CONSTRAINT jobs_tenant_id_fkey;
+
+ALTER TABLE shared.jobs
+    ADD CONSTRAINT jobs_tenant_id_fkey
+    FOREIGN KEY (tenant_id)
+    REFERENCES shared.tenants(id)
+    ON DELETE SET NULL;
+
+ALTER TABLE shared.jobs
+    ADD COLUMN result JSONB;

backend/migrations/202511110100_add_tenant_capability_enum/down.sql

@@ -0,0 +1,4 @@
+-- diesel:run_in_transaction = false
+
+-- Enum values cannot be removed safely; this down migration intentionally left empty.
+SELECT 1;

backend/migrations/202511110100_add_tenant_capability_enum/up.sql

@@ -0,0 +1,46 @@
+-- diesel:run_in_transaction = false
+
+DO $$
+BEGIN
+    BEGIN
+        EXECUTE 'ALTER TYPE tenant.api_capability ADD VALUE ''tenants:write''';
+    EXCEPTION
+        WHEN undefined_object THEN
+            BEGIN
+                EXECUTE 'ALTER TYPE api_capability ADD VALUE ''tenants:write''';
+            EXCEPTION
+                WHEN duplicate_object THEN NULL;
+            END;
+        WHEN duplicate_object THEN NULL;
+    END;
+END $$;
+
+DO $$
+BEGIN
+    BEGIN
+        EXECUTE 'ALTER TYPE tenant.api_capability ADD VALUE ''tenants:reset''';
+    EXCEPTION
+        WHEN undefined_object THEN
+            BEGIN
+                EXECUTE 'ALTER TYPE api_capability ADD VALUE ''tenants:reset''';
+            EXCEPTION
+                WHEN duplicate_object THEN NULL;
+            END;
+        WHEN duplicate_object THEN NULL;
+    END;
+END $$;
+
+DO $$
+BEGIN
+    BEGIN
+        EXECUTE 'ALTER TYPE tenant.api_capability ADD VALUE ''tenants:delete''';
+    EXCEPTION
+        WHEN undefined_object THEN
+            BEGIN
+                EXECUTE 'ALTER TYPE api_capability ADD VALUE ''tenants:delete''';
+            EXCEPTION
+                WHEN duplicate_object THEN NULL;
+            END;
+        WHEN duplicate_object THEN NULL;
+    END;
+END $$;

backend/migrations/202511110200_owner_tenant_capabilities/down.sql

@@ -0,0 +1,9 @@
+-- diesel:run_in_transaction = false
+
+DELETE FROM tenant.capability_set_capabilities
+WHERE capability IN (
+        'tenants:write'::api_capability,
+        'tenants:reset'::api_capability,
+        'tenants:delete'::api_capability
+    )
+  AND capability_set_id IN (SELECT id FROM tenant.capability_sets WHERE slug = 'owner');

backend/migrations/202511110200_owner_tenant_capabilities/up.sql

@@ -0,0 +1,22 @@
+-- diesel:run_in_transaction = false
+
+WITH owner_sets AS (
+    SELECT id FROM tenant.capability_sets WHERE slug = 'owner'
+)
+INSERT INTO tenant.capability_set_capabilities (capability_set_id, capability)
+SELECT id, 'tenants:write'::api_capability FROM owner_sets
+ON CONFLICT DO NOTHING;
+
+WITH owner_sets AS (
+    SELECT id FROM tenant.capability_sets WHERE slug = 'owner'
+)
+INSERT INTO tenant.capability_set_capabilities (capability_set_id, capability)
+SELECT id, 'tenants:reset'::api_capability FROM owner_sets
+ON CONFLICT DO NOTHING;
+
+WITH owner_sets AS (
+    SELECT id FROM tenant.capability_sets WHERE slug = 'owner'
+)
+INSERT INTO tenant.capability_set_capabilities (capability_set_id, capability)
+SELECT id, 'tenants:delete'::api_capability FROM owner_sets
+ON CONFLICT DO NOTHING;

backend/migrations/202511120000_collapse_asset_objects/down.sql

@@ -0,0 +1,24 @@
+CREATE TABLE tenant.document_asset_objects (
+    id UUID PRIMARY KEY,
+    asset_id UUID NOT NULL REFERENCES tenant.document_assets(id) ON DELETE CASCADE,
+    ordinal INT NOT NULL,
+    s3_key TEXT NOT NULL,
+    metadata JSONB NOT NULL DEFAULT '{}'::jsonb,
+    tenant_id UUID NOT NULL REFERENCES shared.tenants(id),
+    CONSTRAINT document_asset_objects_ordinal_positive CHECK (ordinal >= 1),
+    CONSTRAINT document_asset_objects_asset_ordinal_unique UNIQUE (asset_id, ordinal)
+);
+
+CREATE INDEX idx_document_asset_objects_asset_ordinal
+    ON tenant.document_asset_objects(asset_id, ordinal);
+
+CREATE INDEX document_asset_objects_tenant_id_idx ON tenant.document_asset_objects(tenant_id);
+
+ALTER TABLE tenant.document_assets ADD COLUMN cardinality INT;
+UPDATE tenant.document_assets SET cardinality = 1;
+
+INSERT INTO tenant.document_asset_objects (id, asset_id, ordinal, s3_key, metadata, tenant_id)
+SELECT gen_random_uuid(), id, 1, s3_key, metadata, tenant_id
+FROM tenant.document_assets;
+
+ALTER TABLE tenant.document_assets DROP COLUMN s3_key;

backend/migrations/202511120000_collapse_asset_objects/up.sql

@@ -0,0 +1,27 @@
+-- Prevent concurrent inserts/updates during backfill.
+LOCK TABLE tenant.document_asset_objects IN ACCESS EXCLUSIVE MODE;
+LOCK TABLE tenant.document_assets IN ACCESS EXCLUSIVE MODE;
+
+ALTER TABLE tenant.document_assets ADD COLUMN s3_key TEXT;
+
+UPDATE tenant.document_assets AS da
+SET s3_key = o.s3_key,
+    metadata = COALESCE(da.metadata, '{}'::jsonb) || COALESCE(o.metadata, '{}'::jsonb)
+FROM tenant.document_asset_objects AS o
+WHERE o.asset_id = da.id
+  AND o.ordinal = 1;
+
+DELETE FROM tenant.document_asset_objects WHERE ordinal <> 1;
+
+DO $$
+BEGIN
+    IF EXISTS (SELECT 1 FROM tenant.document_assets WHERE s3_key IS NULL) THEN
+        RAISE EXCEPTION 'cannot drop document_asset_objects: some assets are missing a populated ordinal 1 object (s3_key null)';
+    END IF;
+END
+$$;
+
+ALTER TABLE tenant.document_assets ALTER COLUMN s3_key SET NOT NULL;
+ALTER TABLE tenant.document_assets DROP COLUMN cardinality;
+
+DROP TABLE tenant.document_asset_objects;

backend/migrations/202511130000_rename_document_content_type/down.sql

@@ -0,0 +1,3 @@
+-- Revert column rename.
+ALTER TABLE tenant.documents
+    RENAME COLUMN mime_type TO content_type;

backend/migrations/202511130000_rename_document_content_type/up.sql

@@ -0,0 +1,3 @@
+-- Rename document content_type column to mime_type for consistency with API.
+ALTER TABLE tenant.documents
+    RENAME COLUMN content_type TO mime_type;

backend/migrations/202511300000_rename_ocr_text_asset/down.sql

@@ -0,0 +1,3 @@
+UPDATE tenant.document_assets
+SET asset_type = 'ocr-text'
+WHERE asset_type = 'text-content';

backend/migrations/202511300000_rename_ocr_text_asset/up.sql

@@ -0,0 +1,3 @@
+UPDATE tenant.document_assets
+SET asset_type = 'text-content'
+WHERE asset_type = 'ocr-text';

backend/migrations/202511300100_add_title_trgm_index/down.sql

@@ -0,0 +1 @@
+DROP INDEX IF EXISTS tenant.idx_documents_title_trgm;

backend/migrations/202511300100_add_title_trgm_index/up.sql

@@ -0,0 +1,6 @@
+CREATE EXTENSION IF NOT EXISTS pg_trgm;
+
+CREATE INDEX idx_documents_title_trgm
+    ON tenant.documents
+    USING gin (title gin_trgm_ops)
+    WHERE deleted_at IS NULL;

backend/migrations/202512010000_update_folder_unique_index/down.sql

@@ -1,6 +0,0 @@
-DROP INDEX IF EXISTS folders_tenant_parent_name_unique_idx;
-CREATE UNIQUE INDEX folders_parent_name_unique_idx
-    ON folders (
-        COALESCE(parent_id, '00000000-0000-0000-0000-000000000000'::uuid),
-        name
-    );

backend/migrations/202512010000_update_folder_unique_index/up.sql

@@ -1,7 +0,0 @@
-DROP INDEX IF EXISTS folders_parent_name_unique_idx;
-CREATE UNIQUE INDEX folders_tenant_parent_name_unique_idx
-    ON folders (
-        tenant_id,
-        COALESCE(parent_id, '00000000-0000-0000-0000-000000000000'::uuid),
-        name
-    );

backend/migrations/202512010010_update_tenant_unique_indexes/down.sql

@@ -1,16 +0,0 @@
--- Revert correspondent uniqueness to global name
-DROP INDEX IF EXISTS correspondents_tenant_name_unique;
-ALTER TABLE correspondents ADD CONSTRAINT correspondents_name_unique UNIQUE (name);
-
--- Revert tag uniqueness to global label
-DROP INDEX IF EXISTS tags_tenant_label_unique;
-ALTER TABLE tags ADD CONSTRAINT tags_label_key UNIQUE (label);
-
--- Revert document filename uniqueness to global folder scope
-DROP INDEX IF EXISTS documents_tenant_folder_filename_unique;
-CREATE UNIQUE INDEX documents_unique_folder_filename
-    ON documents (
-        COALESCE(folder_id, '00000000-0000-0000-0000-000000000000'::uuid),
-        filename
-    )
-    WHERE deleted_at IS NULL;

backend/migrations/202512010010_update_tenant_unique_indexes/up.sql

@@ -1,20 +0,0 @@
--- Ensure document filenames are unique per tenant + folder
-DROP INDEX IF EXISTS documents_tenant_folder_filename_unique;
-DROP INDEX IF EXISTS documents_unique_folder_filename;
-CREATE UNIQUE INDEX documents_tenant_folder_filename_unique
-    ON documents (
-        tenant_id,
-        COALESCE(folder_id, '00000000-0000-0000-0000-000000000000'::uuid),
-        filename
-    )
-    WHERE deleted_at IS NULL;
-
--- Ensure tag labels are unique per tenant
-ALTER TABLE tags DROP CONSTRAINT IF EXISTS tags_label_key;
-DROP INDEX IF EXISTS tags_tenant_label_unique;
-CREATE UNIQUE INDEX tags_tenant_label_unique ON tags (tenant_id, label);
-
--- Ensure correspondent names are unique per tenant
-ALTER TABLE correspondents DROP CONSTRAINT IF EXISTS correspondents_name_unique;
-DROP INDEX IF EXISTS correspondents_tenant_name_unique;
-CREATE UNIQUE INDEX correspondents_tenant_name_unique ON correspondents (tenant_id, name);

backend/migrations/202512010020_drop_document_version_operations_summary/down.sql

@@ -1,2 +0,0 @@
-ALTER TABLE document_versions
-    ADD COLUMN operations_summary JSONB NOT NULL DEFAULT '{}'::jsonb;

backend/migrations/202512010020_drop_document_version_operations_summary/up.sql

@@ -1,2 +0,0 @@
-ALTER TABLE document_versions
-    DROP COLUMN IF EXISTS operations_summary;

backend/migrations/202512010050_drop_correspondent_roles/down.sql

@@ -1,7 +0,0 @@
-ALTER TABLE document_correspondents DROP CONSTRAINT document_correspondents_pkey;
-ALTER TABLE document_correspondents ADD COLUMN role VARCHAR(32) NOT NULL DEFAULT 'other';
-UPDATE document_correspondents SET role = 'other';
-ALTER TABLE document_correspondents ALTER COLUMN role DROP DEFAULT;
-ALTER TABLE document_correspondents
-    ADD CONSTRAINT document_correspondents_pkey
-    PRIMARY KEY (document_id, correspondent_id, role);

backend/migrations/202512010050_drop_correspondent_roles/up.sql

@@ -1,24 +0,0 @@
-WITH ranked AS (
-    SELECT
-        document_id,
-        correspondent_id,
-        role,
-        assigned_at,
-        assigned_by,
-        tenant_id,
-        ROW_NUMBER() OVER (PARTITION BY document_id, correspondent_id ORDER BY assigned_at DESC) AS rn
-    FROM document_correspondents
-)
-DELETE FROM document_correspondents dc
-USING ranked r
-WHERE dc.document_id = r.document_id
-  AND dc.correspondent_id = r.correspondent_id
-  AND dc.role = r.role
-  AND dc.tenant_id = r.tenant_id
-  AND r.rn > 1;
-
-ALTER TABLE document_correspondents DROP CONSTRAINT document_correspondents_pkey;
-ALTER TABLE document_correspondents DROP COLUMN role;
-ALTER TABLE document_correspondents
-    ADD CONSTRAINT document_correspondents_pkey
-    PRIMARY KEY (document_id, correspondent_id);

backend/migrations/202512010100_add_webdav_tokens/down.sql

@@ -1,3 +0,0 @@
-DROP INDEX IF EXISTS webdav_tokens_user_tenant_idx;
-DROP INDEX IF EXISTS webdav_tokens_token_prefix_key;
-DROP TABLE IF EXISTS webdav_tokens;

backend/migrations/202512010100_add_webdav_tokens/up.sql

@@ -1,16 +0,0 @@
-CREATE TABLE webdav_tokens (
-    id UUID PRIMARY KEY,
-    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
-    tenant_id UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
-    token_prefix TEXT NOT NULL,
-    token_hash TEXT NOT NULL,
-    label TEXT,
-    scopes JSONB NOT NULL DEFAULT '["webdav"]'::jsonb,
-    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    last_used_at TIMESTAMPTZ,
-    expires_at TIMESTAMPTZ,
-    revoked_at TIMESTAMPTZ
-);
-
-CREATE UNIQUE INDEX webdav_tokens_token_prefix_key ON webdav_tokens(token_prefix);
-CREATE INDEX webdav_tokens_user_tenant_idx ON webdav_tokens(user_id, tenant_id);

backend/migrations/202512010110_drop_webdav_token_scopes/down.sql

@@ -1,2 +0,0 @@
-ALTER TABLE webdav_tokens
-    ADD COLUMN scopes JSONB NOT NULL DEFAULT '["webdav"]'::jsonb;

backend/migrations/202512010110_drop_webdav_token_scopes/up.sql

@@ -1,2 +0,0 @@
-ALTER TABLE webdav_tokens
-    DROP COLUMN IF EXISTS scopes;

backend/migrations/202512010120_add_tenant_status_column/down.sql

@@ -1,5 +0,0 @@
-ALTER TABLE tenants
-    DROP COLUMN IF EXISTS status,
-    DROP COLUMN IF EXISTS created_by;
-
-DROP TYPE IF EXISTS tenant_status;

backend/migrations/202512010120_add_tenant_status_column/up.sql

@@ -1,19 +0,0 @@
-ALTER TABLE tenants
-    DROP COLUMN IF EXISTS status;
-
-ALTER TABLE tenants
-    DROP COLUMN IF EXISTS created_by;
-
-DROP TYPE IF EXISTS tenant_status;
-
-CREATE TYPE tenant_status AS ENUM ('creating', 'active', 'suspended', 'deleting', 'error');
-
-ALTER TABLE tenants
-    ADD COLUMN status tenant_status,
-    ADD COLUMN created_by UUID;
-
-UPDATE tenants
-SET status = 'active';
-
-ALTER TABLE tenants
-    ALTER COLUMN status SET NOT NULL;

backend/migrations/202512010130_add_user_passkeys/down.sql

@@ -1 +0,0 @@
-DROP TABLE IF EXISTS user_passkeys;

backend/migrations/202512010130_add_user_passkeys/up.sql

@@ -1,19 +0,0 @@
-CREATE TABLE user_passkeys (
-    id UUID PRIMARY KEY,
-    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
-    credential_id BYTEA NOT NULL UNIQUE,
-    public_key BYTEA NOT NULL,
-    credential JSONB NOT NULL,
-    sign_count BIGINT NOT NULL,
-    transports TEXT[] NOT NULL DEFAULT '{}',
-    aaguid UUID,
-    nickname TEXT,
-    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    last_used_at TIMESTAMPTZ,
-    revoked_at TIMESTAMPTZ,
-    revoked_by UUID,
-    revoked_reason TEXT
-);
-
-CREATE INDEX user_passkeys_user_id_idx ON user_passkeys (user_id);

backend/migrations/202512010140_add_webauthn_challenges/down.sql

@@ -1 +0,0 @@
-DROP TABLE IF EXISTS webauthn_challenges;

backend/migrations/202512010140_add_webauthn_challenges/up.sql

@@ -1,13 +0,0 @@
-CREATE TABLE webauthn_challenges (
-    id UUID PRIMARY KEY,
-    user_id UUID REFERENCES users(id) ON DELETE CASCADE,
-    purpose TEXT NOT NULL,
-    challenge BYTEA NOT NULL,
-    state BYTEA NOT NULL,
-    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    expires_at TIMESTAMPTZ NOT NULL,
-    CONSTRAINT webauthn_challenges_purpose_check CHECK (purpose IN ('registration', 'authentication'))
-);
-
-CREATE INDEX webauthn_challenges_user_id_idx ON webauthn_challenges (user_id);
-CREATE INDEX webauthn_challenges_expires_at_idx ON webauthn_challenges (expires_at);

backend/migrations/202512010150_drop_user_membership_role/down.sql

@@ -1,2 +0,0 @@
-ALTER TABLE user_memberships
-    ADD COLUMN role TEXT NOT NULL DEFAULT 'user';

backend/migrations/202512010150_drop_user_membership_role/up.sql

@@ -1,2 +0,0 @@
-ALTER TABLE user_memberships
-    DROP COLUMN role;

backend/migrations/202512010160_replace_tenant_slug/down.sql

@@ -1,5 +0,0 @@
-ALTER TABLE tenants
-    RENAME COLUMN name TO slug;
-
-ALTER TABLE tenants
-    RENAME CONSTRAINT tenants_name_key TO tenants_slug_key;

backend/migrations/202512010160_replace_tenant_slug/up.sql

@@ -1,5 +0,0 @@
-ALTER TABLE tenants
-    RENAME COLUMN slug TO name;
-
-ALTER TABLE tenants
-    RENAME CONSTRAINT tenants_slug_key TO tenants_name_key;

backend/migrations/202512010165_drop_tenant_name_unique/down.sql

@@ -1,2 +0,0 @@
-ALTER TABLE tenants
-    ADD CONSTRAINT tenants_name_key UNIQUE (name);

backend/migrations/202512010165_drop_tenant_name_unique/up.sql

@@ -1,2 +0,0 @@
-ALTER TABLE tenants
-    DROP CONSTRAINT IF EXISTS tenants_name_key;

backend/migrations/202512010175_drop_password_column_on_users/down.sql

@@ -1,6 +0,0 @@
-ALTER TABLE users
-    ADD COLUMN password_hash VARCHAR(255) NOT NULL DEFAULT '';
-
--- Optional: remove the default if you need to reintroduce passwords later
-ALTER TABLE users
-    ALTER COLUMN password_hash DROP DEFAULT;

backend/migrations/202512010175_drop_password_column_on_users/up.sql

@@ -1,2 +0,0 @@
-ALTER TABLE users
-    DROP COLUMN password_hash;

backend/postgres-init/01_create_app_roles.sql

@@ -0,0 +1,21 @@
+DO $$
+BEGIN
+    IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'papercrate_app') THEN
+        CREATE ROLE papercrate_app NOLOGIN;
+    END IF;
+
+    IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'papercrate_app_login') THEN
+        CREATE ROLE papercrate_app_login LOGIN PASSWORD 'papercrate_app';
+        GRANT papercrate_app TO papercrate_app_login;
+    END IF;
+END
+$$;
+
+-- Ensure the login role inherits and uses a sensible search path by default
+ALTER ROLE papercrate_app_login INHERIT;
+ALTER ROLE papercrate_app_login SET search_path = 'tenant, shared, public';
+
+GRANT CONNECT ON DATABASE papercrate TO papercrate_app;
+GRANT CONNECT ON DATABASE papercrate TO papercrate_app_login;
+GRANT USAGE ON SCHEMA public TO papercrate_app;
+GRANT USAGE ON SCHEMA public TO papercrate_app_login;

backend/resources/issued_at_months.yaml

@@ -0,0 +1,648 @@
+months:
+  - name: "january"
+    month: 1
+    locales:
+      - "en"
+  - name: "jan"
+    month: 1
+    locales:
+      - "en"
+  - name: "janvier"
+    month: 1
+    locales:
+      - "fr"
+  - name: "janv"
+    month: 1
+    locales:
+      - "fr"
+  - name: "januar"
+    month: 1
+    locales:
+      - "de"
+  - name: "janu\u00e1r"
+    month: 1
+    locales:
+      - "hu"
+  - name: "leden"
+    month: 1
+    locales:
+      - "cs"
+  - name: "sije\u010danj"
+    month: 1
+    locales:
+      - "hr"
+  - name: "sijecanj"
+    month: 1
+    locales:
+      - "hr"
+  - name: "stycze\u0144"
+    month: 1
+    locales:
+      - "pl"
+  - name: "styczen"
+    month: 1
+    locales:
+      - "pl"
+  - name: "ocak"
+    month: 1
+    locales:
+      - "tr"
+  - name: "february"
+    month: 2
+    locales:
+      - "en"
+  - name: "feb"
+    month: 2
+    locales:
+      - "en"
+  - name: "f\u00e9vrier"
+    month: 2
+    locales:
+      - "fr"
+  - name: "fevrier"
+    month: 2
+    locales:
+      - "fr"
+  - name: "f\u00e9vr"
+    month: 2
+    locales:
+      - "fr"
+  - name: "fevr"
+    month: 2
+    locales:
+      - "fr"
+  - name: "februar"
+    month: 2
+    locales:
+      - "de"
+  - name: "\u00fanor"
+    month: 2
+    locales:
+      - "cs"
+  - name: "unor"
+    month: 2
+    locales:
+      - "cs"
+  - name: "\u00fanora"
+    month: 2
+    locales:
+      - "cs"
+  - name: "unora"
+    month: 2
+    locales:
+      - "cs"
+  - name: "velja\u010da"
+    month: 2
+    locales:
+      - "hr"
+  - name: "veljaca"
+    month: 2
+    locales:
+      - "hr"
+  - name: "velja\u010de"
+    month: 2
+    locales:
+      - "hr"
+  - name: "veljace"
+    month: 2
+    locales:
+      - "hr"
+  - name: "luty"
+    month: 2
+    locales:
+      - "pl"
+  - name: "\u015fubat"
+    month: 2
+    locales:
+      - "tr"
+  - name: "subat"
+    month: 2
+    locales:
+      - "tr"
+  - name: "march"
+    month: 3
+    locales:
+      - "en"
+  - name: "mar"
+    month: 3
+    locales:
+      - "en"
+  - name: "m\u00e4rz"
+    month: 3
+    locales:
+      - "de"
+  - name: "maerz"
+    month: 3
+    locales:
+      - "de"
+  - name: "mars"
+    month: 3
+    locales:
+      - "fr"
+  - name: "m\u00e4r"
+    month: 3
+    locales:
+      - "de"
+  - name: "marz"
+    month: 3
+    locales:
+      - "de"
+  - name: "b\u0159ezen"
+    month: 3
+    locales:
+      - "cs"
+  - name: "brezen"
+    month: 3
+    locales:
+      - "cs"
+  - name: "b\u0159ezna"
+    month: 3
+    locales:
+      - "cs"
+  - name: "brezna"
+    month: 3
+    locales:
+      - "cs"
+  - name: "o\u017eujak"
+    month: 3
+    locales:
+      - "hr"
+  - name: "ozujak"
+    month: 3
+    locales:
+      - "hr"
+  - name: "o\u017eujka"
+    month: 3
+    locales:
+      - "hr"
+  - name: "ozujka"
+    month: 3
+    locales:
+      - "hr"
+  - name: "marzec"
+    month: 3
+    locales:
+      - "pl"
+  - name: "mart"
+    month: 3
+    locales:
+      - "sr"
+      - "bs"
+  - name: "m\u00e1rcius"
+    month: 3
+    locales:
+      - "hu"
+  - name: "martie"
+    month: 3
+    locales:
+      - "ro"
+  - name: "april"
+    month: 4
+    locales:
+      - "en"
+  - name: "apr"
+    month: 4
+    locales:
+      - "en"
+  - name: "avril"
+    month: 4
+    locales:
+      - "fr"
+  - name: "abril"
+    month: 4
+    locales:
+      - "es"
+      - "pt"
+  - name: "duben"
+    month: 4
+    locales:
+      - "cs"
+  - name: "travanj"
+    month: 4
+    locales:
+      - "hr"
+  - name: "nisan"
+    month: 4
+    locales:
+      - "tr"
+  - name: "kwiecie\u0144"
+    month: 4
+    locales:
+      - "pl"
+  - name: "kwiecien"
+    month: 4
+    locales:
+      - "pl"
+  - name: "aprile"
+    month: 4
+    locales:
+      - "it"
+  - name: "may"
+    month: 5
+    locales:
+      - "en"
+  - name: "mai"
+    month: 5
+    locales:
+      - "fr"
+      - "de"
+  - name: "mayo"
+    month: 5
+    locales:
+      - "es"
+  - name: "kv\u011bten"
+    month: 5
+    locales:
+      - "cs"
+  - name: "kveten"
+    month: 5
+    locales:
+      - "cs"
+  - name: "kv\u011btna"
+    month: 5
+    locales:
+      - "cs"
+  - name: "kvetna"
+    month: 5
+    locales:
+      - "cs"
+  - name: "svibanj"
+    month: 5
+    locales:
+      - "hr"
+  - name: "maj"
+    month: 5
+    locales:
+      - "pl"
+      - "bs"
+      - "sr"
+      - "hr"
+  - name: "may\u0131s"
+    month: 5
+    locales:
+      - "tr"
+  - name: "mayis"
+    month: 5
+    locales:
+      - "tr"
+  - name: "maggio"
+    month: 5
+    locales:
+      - "it"
+  - name: "m\u00e1j"
+    month: 5
+    locales:
+      - "hu"
+      - "sk"
+  - name: "june"
+    month: 6
+    locales:
+      - "en"
+  - name: "jun"
+    month: 6
+    locales:
+      - "en"
+      - "de"
+  - name: "juin"
+    month: 6
+    locales:
+      - "fr"
+  - name: "junio"
+    month: 6
+    locales:
+      - "es"
+  - name: "juni"
+    month: 6
+    locales:
+      - "de"
+  - name: "\u010derven"
+    month: 6
+    locales:
+      - "cs"
+  - name: "cerven"
+    month: 6
+    locales:
+      - "cs"
+  - name: "lipanj"
+    month: 6
+    locales:
+      - "hr"
+  - name: "haziran"
+    month: 6
+    locales:
+      - "tr"
+  - name: "czerwiec"
+    month: 6
+    locales:
+      - "pl"
+  - name: "j\u00fanius"
+    month: 6
+    locales:
+      - "hu"
+  - name: "giugno"
+    month: 6
+    locales:
+      - "it"
+  - name: "july"
+    month: 7
+    locales:
+      - "en"
+  - name: "jul"
+    month: 7
+    locales:
+      - "en"
+      - "de"
+  - name: "juillet"
+    month: 7
+    locales:
+      - "fr"
+  - name: "julio"
+    month: 7
+    locales:
+      - "es"
+  - name: "temmuz"
+    month: 7
+    locales:
+      - "tr"
+  - name: "\u010dervenec"
+    month: 7
+    locales:
+      - "cs"
+  - name: "cervenec"
+    month: 7
+    locales:
+      - "cs"
+  - name: "srpanj"
+    month: 7
+    locales:
+      - "hr"
+  - name: "lipiec"
+    month: 7
+    locales:
+      - "pl"
+  - name: "luglio"
+    month: 7
+    locales:
+      - "it"
+  - name: "j\u00falius"
+    month: 7
+    locales:
+      - "hu"
+  - name: "august"
+    month: 8
+    locales:
+      - "en"
+  - name: "aug"
+    month: 8
+    locales:
+      - "en"
+      - "de"
+  - name: "ao\u00fbt"
+    month: 8
+    locales:
+      - "fr"
+  - name: "aout"
+    month: 8
+    locales:
+      - "fr"
+  - name: "agosto"
+    month: 8
+    locales:
+      - "es"
+      - "pt"
+      - "it"
+  - name: "a\u011fustos"
+    month: 8
+    locales:
+      - "tr"
+  - name: "agustos"
+    month: 8
+    locales:
+      - "tr"
+  - name: "kolovoz"
+    month: 8
+    locales:
+      - "hr"
+  - name: "srpen"
+    month: 8
+    locales:
+      - "cs"
+  - name: "sierpie\u0144"
+    month: 8
+    locales:
+      - "pl"
+  - name: "sierpien"
+    month: 8
+    locales:
+      - "pl"
+  - name: "augustus"
+    month: 8
+    locales:
+      - "nl"
+  - name: "agost"
+    month: 8
+    locales:
+      - "it"
+      - "ca"
+  - name: "september"
+    month: 9
+    locales:
+      - "en"
+  - name: "sept"
+    month: 9
+    locales:
+      - "en"
+      - "fr"
+  - name: "sep"
+    month: 9
+    locales:
+      - "en"
+  - name: "septembre"
+    month: 9
+    locales:
+      - "fr"
+  - name: "septiembre"
+    month: 9
+    locales:
+      - "es"
+  - name: "eyl\u00fcl"
+    month: 9
+    locales:
+      - "tr"
+  - name: "eylul"
+    month: 9
+    locales:
+      - "tr"
+  - name: "z\u00e1\u0159\u00ed"
+    month: 9
+    locales:
+      - "cs"
+  - name: "zari"
+    month: 9
+    locales:
+      - "cs"
+  - name: "rujan"
+    month: 9
+    locales:
+      - "hr"
+  - name: "wrzesie\u0144"
+    month: 9
+    locales:
+      - "pl"
+  - name: "wrzesien"
+    month: 9
+    locales:
+      - "pl"
+  - name: "septembrie"
+    month: 9
+    locales:
+      - "ro"
+  - name: "settembre"
+    month: 9
+    locales:
+      - "it"
+  - name: "october"
+    month: 10
+    locales:
+      - "en"
+  - name: "oct"
+    month: 10
+    locales:
+      - "en"
+  - name: "oktober"
+    month: 10
+    locales:
+      - "de"
+  - name: "okt\u00f3ber"
+    month: 10
+    locales:
+      - "hu"
+  - name: "octobre"
+    month: 10
+    locales:
+      - "fr"
+  - name: "octubre"
+    month: 10
+    locales:
+      - "es"
+  - name: "\u0159\u00edjen"
+    month: 10
+    locales:
+      - "cs"
+  - name: "rijen"
+    month: 10
+    locales:
+      - "hr"
+  - name: "pa\u017adziernik"
+    month: 10
+    locales:
+      - "pl"
+  - name: "pazdziernik"
+    month: 10
+    locales:
+      - "pl"
+  - name: "ekim"
+    month: 10
+    locales:
+      - "tr"
+  - name: "octombrie"
+    month: 10
+    locales:
+      - "ro"
+  - name: "november"
+    month: 11
+    locales:
+      - "en"
+  - name: "nov"
+    month: 11
+    locales:
+      - "en"
+  - name: "novembre"
+    month: 11
+    locales:
+      - "fr"
+  - name: "noviembre"
+    month: 11
+    locales:
+      - "es"
+  - name: "studeni"
+    month: 11
+    locales:
+      - "hr"
+  - name: "kas\u0131m"
+    month: 11
+    locales:
+      - "tr"
+  - name: "kasim"
+    month: 11
+    locales:
+      - "tr"
+  - name: "listopad"
+    month: 11
+    locales:
+      - "pl"
+      - "cs"
+  - name: "novembro"
+    month: 11
+    locales:
+      - "pt"
+  - name: "listopadu"
+    month: 11
+    locales:
+      - "cs"
+  - name: "noiembrie"
+    month: 11
+    locales:
+      - "ro"
+  - name: "december"
+    month: 12
+    locales:
+      - "en"
+  - name: "dec"
+    month: 12
+    locales:
+      - "en"
+  - name: "dezember"
+    month: 12
+    locales:
+      - "de"
+  - name: "d\u00e9cembre"
+    month: 12
+    locales:
+      - "fr"
+  - name: "decembre"
+    month: 12
+    locales:
+      - "fr"
+  - name: "prosinec"
+    month: 12
+    locales:
+      - "cs"
+  - name: "prosinac"
+    month: 12
+    locales:
+      - "hr"
+  - name: "grudzie\u0144"
+    month: 12
+    locales:
+      - "pl"
+  - name: "grudzien"
+    month: 12
+    locales:
+      - "pl"
+  - name: "grudnia"
+    month: 12
+    locales:
+      - "pl"
+  - name: "aral\u0131k"
+    month: 12
+    locales:
+      - "tr"
+  - name: "aralik"
+    month: 12
+    locales:
+      - "tr"
+  - name: "decembrie"
+    month: 12
+    locales:
+      - "ro"

backend/run-dev.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+set -e
+
+echo "Waiting for Postgres..."
+until pg_isready -h postgres -U papercrate; do
+  sleep 1
+done
+
+echo "Running migrations..."
+diesel migration run
+
+echo "Building binaries for first run..."
+cargo build --bin backend --bin worker --bin webdav
+
+echo "Starting supervisord..."
+exec supervisord -c supervisord.conf

backend/src/auth/api_tokens.rs

@@ -0,0 +1,324 @@
+use argon2::{
+    password_hash::{rand_core::OsRng as PasswordHashOsRng, PasswordHasher, SaltString},
+    Argon2,
+};
+use chrono::{NaiveDateTime, Utc};
+use diesel::prelude::*;
+use rand::{rngs::OsRng, TryRngCore};
+use uuid::Uuid;
+
+use crate::{
+    auth::capability_sets::{load_capabilities_for_set, load_capability_set},
+    error::AppError,
+    models::{ApiCapability, ApiToken, CapabilitySet, NewApiToken},
+    schema::api_tokens,
+    state::PgPooledConnection,
+    tenants::{apply_api_token_prefix, clear_api_token_prefix},
+};
+
+use crate::schema::api_tokens::dsl as api_tokens_dsl;
+
+const TOKEN_PREFIX_LENGTH: usize = 12;
+const TOKEN_SECRET_LENGTH: usize = 32;
+
+/// Represents a newly issued API token and the raw secret that was generated for it.
+pub struct IssuedApiToken {
+    pub token: String,
+    pub record: ApiToken,
+}
+
+/// Creates a new API token for the supplied user/tenant combination.
+pub fn create_api_token(
+    conn: &mut PgPooledConnection,
+    user_id: Uuid,
+    tenant_id: Uuid,
+    label: Option<String>,
+    expires_at: Option<NaiveDateTime>,
+    capability_set_id: Uuid,
+) -> Result<IssuedApiToken, AppError> {
+    let capability_set =
+        validate_capability_set_belongs_to_tenant(conn, capability_set_id, tenant_id)?;
+
+    let raw_secret = generate_secret()?;
+    let token_prefix = raw_secret[..TOKEN_PREFIX_LENGTH].to_string();
+    let token_hash = hash_secret(&raw_secret)?;
+    let new_token = NewApiToken {
+        id: Uuid::new_v4(),
+        user_id,
+        tenant_id,
+        token_prefix,
+        token_hash,
+        label,
+        expires_at,
+        capability_set_id: capability_set.id,
+    };
+
+    let record = diesel::insert_into(api_tokens::table)
+        .values(&new_token)
+        .get_result::<ApiToken>(conn)?;
+
+    Ok(IssuedApiToken {
+        token: raw_secret,
+        record,
+    })
+}
+
+/// Lists API tokens belonging to a user within an optional tenant scope.
+pub fn list_api_tokens(
+    conn: &mut PgPooledConnection,
+    user_id: Uuid,
+    tenant_id: Option<Uuid>,
+) -> Result<Vec<ApiToken>, AppError> {
+    let mut query = api_tokens::table
+        .filter(api_tokens::user_id.eq(user_id))
+        .into_boxed();
+
+    if let Some(tenant_id) = tenant_id {
+        query = query.filter(api_tokens::tenant_id.eq(tenant_id));
+    }
+
+    let tokens = query
+        .order(api_tokens::created_at.asc())
+        .load::<ApiToken>(conn)?;
+
+    Ok(tokens)
+}
+
+/// Regenerates the secret value for an API token.
+pub fn regenerate_api_token(
+    conn: &mut PgPooledConnection,
+    token_id: Uuid,
+    user_id: Uuid,
+    tenant_id: Option<Uuid>,
+) -> Result<IssuedApiToken, AppError> {
+    let record = find_user_token(conn, token_id, user_id, tenant_id)?;
+
+    if record.revoked_at.is_some() {
+        return Err(AppError::bad_request(
+            "cannot regenerate a revoked API token",
+        ));
+    }
+
+    let raw_secret = generate_secret()?;
+    let token_prefix = raw_secret[..TOKEN_PREFIX_LENGTH].to_string();
+    let token_hash = hash_secret(&raw_secret)?;
+
+    let updated = diesel::update(api_tokens::table.find(record.id))
+        .set((
+            api_tokens::token_prefix.eq(&token_prefix),
+            api_tokens::token_hash.eq(&token_hash),
+            api_tokens::last_used_at.eq::<Option<NaiveDateTime>>(None),
+        ))
+        .get_result::<ApiToken>(conn)?;
+
+    Ok(IssuedApiToken {
+        token: raw_secret,
+        record: updated,
+    })
+}
+
+/// Attempts to resolve an API token by its secret value while ensuring it provides the
+/// requested capability.
+pub fn find_active_token_by_secret(
+    conn: &mut PgPooledConnection,
+    tenant_id: Option<Uuid>,
+    secret: &str,
+    required_capability: Option<ApiCapability>,
+) -> Result<Option<ApiToken>, AppError> {
+    if secret.len() < TOKEN_PREFIX_LENGTH {
+        return Ok(None);
+    }
+
+    let prefix = &secret[..TOKEN_PREFIX_LENGTH];
+    let candidates = with_api_token_prefix(conn, prefix, |conn| {
+        let mut query = api_tokens::table
+            .filter(api_tokens::token_prefix.eq(prefix))
+            .filter(api_tokens::revoked_at.is_null())
+            .into_boxed();
+
+        let now = Utc::now().naive_utc();
+        query = query.filter(
+            api_tokens::expires_at
+                .is_null()
+                .or(api_tokens::expires_at.gt(now)),
+        );
+
+        if let Some(tenant_id) = tenant_id {
+            query = query.filter(api_tokens::tenant_id.eq(tenant_id));
+        }
+
+        query.load::<ApiToken>(conn).map_err(AppError::from)
+    })?;
+
+    for token in candidates {
+        if let Some(required) = required_capability {
+            let capabilities = load_capabilities_for_set(conn, token.capability_set_id)?;
+            if !capabilities.contains(&required) {
+                continue;
+            }
+        }
+
+        if verify_token_secret(secret, &token.token_hash)? {
+            return Ok(Some(token));
+        }
+    }
+
+    Ok(None)
+}
+
+/// Revokes an API token belonging to the specified user.
+pub fn revoke_api_token(
+    conn: &mut PgPooledConnection,
+    token_id: Uuid,
+    user_id: Uuid,
+) -> Result<(), AppError> {
+    let token = find_user_token(conn, token_id, user_id, None)?;
+
+    diesel::update(api_tokens::table.find(token.id))
+        .set(api_tokens::revoked_at.eq(Utc::now().naive_utc()))
+        .execute(conn)?;
+
+    Ok(())
+}
+
+/// Updates the last-used timestamp for a token.
+pub fn touch_api_token(conn: &mut PgPooledConnection, token_id: Uuid) -> Result<(), AppError> {
+    diesel::update(api_tokens::table.filter(api_tokens::id.eq(token_id)))
+        .set(api_tokens::last_used_at.eq(Utc::now().naive_utc()))
+        .execute(conn)?;
+    Ok(())
+}
+
+/// Verifies a secret against its stored hash representation.
+pub fn verify_token_secret(secret: &str, token_hash: &str) -> Result<bool, AppError> {
+    crate::auth::password::verify_password(secret, token_hash).map_err(|err| {
+        tracing::error!(error = ?err, "failed to verify token");
+        AppError::internal("failed to verify token")
+    })
+}
+
+fn find_user_token(
+    conn: &mut PgPooledConnection,
+    token_id: Uuid,
+    user_id: Uuid,
+    tenant_id: Option<Uuid>,
+) -> Result<ApiToken, AppError> {
+    let mut query = api_tokens_dsl::api_tokens
+        .filter(api_tokens_dsl::id.eq(token_id))
+        .filter(api_tokens_dsl::user_id.eq(user_id))
+        .into_boxed();
+
+    if let Some(tid) = tenant_id {
+        query = query.filter(api_tokens_dsl::tenant_id.eq(tid));
+    }
+
+    query
+        .first::<ApiToken>(conn)
+        .optional()
+        .map_err(AppError::from)?
+        .ok_or_else(AppError::not_found)
+}
+
+fn validate_capability_set_belongs_to_tenant(
+    conn: &mut PgPooledConnection,
+    capability_set_id: Uuid,
+    tenant_id: Uuid,
+) -> Result<CapabilitySet, AppError> {
+    let capability_set = load_capability_set(conn, capability_set_id)?;
+    if capability_set.tenant_id != tenant_id {
+        return Err(AppError::bad_request(
+            "capability set does not belong to the tenant",
+        ));
+    }
+
+    Ok(capability_set)
+}
+
+fn with_api_token_prefix<T, F>(
+    conn: &mut PgPooledConnection,
+    prefix: &str,
+    operation: F,
+) -> Result<T, AppError>
+where
+    F: FnOnce(&mut PgPooledConnection) -> Result<T, AppError>,
+{
+    apply_api_token_prefix(conn, prefix)?;
+    let operation_result = operation(conn);
+    let clear_result = clear_api_token_prefix(conn);
+
+    if let Err(err) = clear_result {
+        return Err(err);
+    }
+
+    operation_result
+}
+
+fn generate_secret() -> Result<String, AppError> {
+    let mut buffer = [0u8; TOKEN_SECRET_LENGTH];
+    OsRng.try_fill_bytes(&mut buffer).map_err(|err| {
+        tracing::error!(error = ?err, "failed to generate token");
+        AppError::internal("failed to generate token")
+    })?;
+    Ok(hex::encode(buffer))
+}
+
+fn hash_secret(secret: &str) -> Result<String, AppError> {
+    let mut salt_rng = PasswordHashOsRng;
+    let salt = SaltString::generate(&mut salt_rng);
+    let hash = Argon2::default()
+        .hash_password(secret.as_bytes(), &salt)
+        .map_err(|err| {
+            tracing::error!(error = ?err, "failed to hash token");
+            AppError::internal("failed to hash token")
+        })?;
+    Ok(hash.to_string())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::auth::capability_sets::{
+        compute_slug, normalize_capabilities, owner_capabilities, webdav_capabilities,
+    };
+
+    #[test]
+    fn generated_secret_has_expected_length() {
+        let secret = generate_secret().unwrap();
+        assert_eq!(secret.len(), TOKEN_SECRET_LENGTH * 2);
+    }
+
+    #[test]
+    fn hash_and_verify_secret_round_trip() {
+        let secret = generate_secret().unwrap();
+        let hash = hash_secret(&secret).unwrap();
+        assert!(verify_token_secret(&secret, &hash).unwrap());
+        assert!(!verify_token_secret("wrong", &hash).unwrap());
+    }
+
+    #[test]
+    fn normalize_capabilities_deduplicates() {
+        let mut caps = owner_capabilities().to_vec();
+        caps.push(ApiCapability::DocumentsRead);
+        let normalized = normalize_capabilities(caps).unwrap();
+        assert_eq!(normalized.len(), owner_capabilities().len());
+    }
+
+    #[test]
+    fn normalize_capabilities_rejects_empty() {
+        assert!(normalize_capabilities(Vec::new()).is_err());
+    }
+
+    #[test]
+    fn compute_slug_matches_system_sets() {
+        let owner_slug = compute_slug(owner_capabilities());
+        assert_eq!(owner_slug, "owner");
+
+        let webdav_slug = compute_slug(webdav_capabilities());
+        assert_eq!(webdav_slug, "webdav");
+    }
+
+    #[test]
+    fn prefix_length_is_less_than_secret_length() {
+        assert!(TOKEN_PREFIX_LENGTH < TOKEN_SECRET_LENGTH * 2);
+    }
+}

backend/src/auth/capability_guard.rs

@@ -0,0 +1,120 @@
+use std::sync::Arc;
+
+use axum::{
+    http::{Request, StatusCode},
+    response::IntoResponse,
+};
+use tower::{Layer, Service};
+
+use crate::{auth::AuthenticatedUser, error::AppError, models::ApiCapability};
+
+#[derive(Clone, Copy)]
+pub enum CapabilityStrategy {
+    All,
+    Any,
+}
+
+#[derive(Clone)]
+pub struct RequireCapabilitiesLayer {
+    required: Arc<Vec<ApiCapability>>,
+    strategy: CapabilityStrategy,
+}
+
+impl RequireCapabilitiesLayer {
+    pub fn all<I>(caps: I) -> Self
+    where
+        I: IntoIterator<Item = ApiCapability>,
+    {
+        Self {
+            required: Arc::new(caps.into_iter().collect()),
+            strategy: CapabilityStrategy::All,
+        }
+    }
+
+    pub fn any<I>(caps: I) -> Self
+    where
+        I: IntoIterator<Item = ApiCapability>,
+    {
+        Self {
+            required: Arc::new(caps.into_iter().collect()),
+            strategy: CapabilityStrategy::Any,
+        }
+    }
+}
+
+impl<S> Layer<S> for RequireCapabilitiesLayer {
+    type Service = RequireCapabilities<S>;
+
+    fn layer(&self, inner: S) -> Self::Service {
+        RequireCapabilities {
+            inner,
+            required: Arc::clone(&self.required),
+            strategy: self.strategy,
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct RequireCapabilities<S> {
+    inner: S,
+    required: Arc<Vec<ApiCapability>>,
+    strategy: CapabilityStrategy,
+}
+
+impl<S, B> Service<Request<B>> for RequireCapabilities<S>
+where
+    S: Service<Request<B>, Response = axum::response::Response> + Send,
+    S::Future: Send + 'static,
+    B: Send + 'static,
+{
+    type Response = S::Response;
+    type Error = S::Error;
+    type Future = std::pin::Pin<
+        Box<dyn std::future::Future<Output = Result<Self::Response, Self::Error>> + Send>,
+    >;
+
+    fn poll_ready(
+        &mut self,
+        cx: &mut std::task::Context<'_>,
+    ) -> std::task::Poll<Result<(), Self::Error>> {
+        self.inner.poll_ready(cx)
+    }
+
+    fn call(&mut self, req: Request<B>) -> Self::Future {
+        if self.required.is_empty() {
+            let fut = self.inner.call(req);
+            return Box::pin(async move { fut.await });
+        }
+
+        let (parts, body) = req.into_parts();
+        let user = match parts.extensions.get::<AuthenticatedUser>() {
+            Some(user) => user,
+            None => {
+                let response = AppError::unauthorized().into_response();
+                return Box::pin(async move { Ok(response) });
+            }
+        };
+
+        let allowed = match self.strategy {
+            CapabilityStrategy::All => self
+                .required
+                .iter()
+                .all(|cap| user.capabilities.contains(cap)),
+            CapabilityStrategy::Any => self
+                .required
+                .iter()
+                .any(|cap| user.capabilities.contains(cap)),
+        };
+
+        if !allowed {
+            let response = AppError::new(StatusCode::FORBIDDEN, "missing required capability")
+                .with_code("missing_capability")
+                .into_response();
+            return Box::pin(async move { Ok(response) });
+        }
+
+        let req = Request::from_parts(parts, body);
+        let fut = self.inner.call(req);
+        Box::pin(async move { fut.await })
+    }
+}

backend/src/auth/capability_sets.rs

@@ -0,0 +1,323 @@
+use chrono::Utc;
+use diesel::{pg::Pg, prelude::*, Connection};
+use sha2::{Digest, Sha256};
+use uuid::Uuid;
+
+use crate::{
+    error::AppError,
+    models::{ApiCapability, CapabilitySet, NewCapabilitySet, NewCapabilitySetCapability},
+    schema::{
+        capability_set_capabilities, capability_set_capabilities::dsl as csc_dsl, capability_sets,
+        capability_sets::dsl as cs_dsl,
+    },
+};
+
+const OWNER_CAPABILITIES: [ApiCapability; 22] = [
+    ApiCapability::CorrespondentsEdit,
+    ApiCapability::CorrespondentsRead,
+    ApiCapability::CorrespondentsWrite,
+    ApiCapability::DocumentsEdit,
+    ApiCapability::DocumentsRead,
+    ApiCapability::DocumentsUpload,
+    ApiCapability::DocumentsWrite,
+    ApiCapability::FoldersEdit,
+    ApiCapability::FoldersRead,
+    ApiCapability::FoldersWrite,
+    ApiCapability::ProfileRead,
+    ApiCapability::ProfileWrite,
+    ApiCapability::TagsEdit,
+    ApiCapability::TagsRead,
+    ApiCapability::TagsWrite,
+    ApiCapability::WebdavRead,
+    ApiCapability::WebdavWrite,
+    ApiCapability::CapabilitySetsRead,
+    ApiCapability::CapabilitySetsWrite,
+    ApiCapability::TenantsWrite,
+    ApiCapability::TenantsReset,
+    ApiCapability::TenantsDelete,
+];
+
+const USER_CAPABILITIES: [ApiCapability; 16] = [
+    ApiCapability::CorrespondentsEdit,
+    ApiCapability::CorrespondentsRead,
+    ApiCapability::CorrespondentsWrite,
+    ApiCapability::DocumentsEdit,
+    ApiCapability::DocumentsRead,
+    ApiCapability::DocumentsUpload,
+    ApiCapability::DocumentsWrite,
+    ApiCapability::FoldersEdit,
+    ApiCapability::FoldersRead,
+    ApiCapability::FoldersWrite,
+    ApiCapability::ProfileRead,
+    ApiCapability::ProfileWrite,
+    ApiCapability::TagsEdit,
+    ApiCapability::TagsRead,
+    ApiCapability::TagsWrite,
+    ApiCapability::WebdavRead,
+];
+
+const READONLY_CAPABILITIES: [ApiCapability; 5] = [
+    ApiCapability::CorrespondentsRead,
+    ApiCapability::DocumentsRead,
+    ApiCapability::FoldersRead,
+    ApiCapability::TagsRead,
+    ApiCapability::WebdavRead,
+];
+
+const WEBDAV_CAPABILITIES: [ApiCapability; 1] = [ApiCapability::WebdavRead];
+
+pub fn owner_capabilities() -> &'static [ApiCapability] {
+    &OWNER_CAPABILITIES
+}
+
+pub fn user_capabilities() -> &'static [ApiCapability] {
+    &USER_CAPABILITIES
+}
+
+pub fn readonly_capabilities() -> &'static [ApiCapability] {
+    &READONLY_CAPABILITIES
+}
+
+pub fn webdav_capabilities() -> &'static [ApiCapability] {
+    &WEBDAV_CAPABILITIES
+}
+
+pub fn is_system_slug(slug: &str) -> bool {
+    matches!(slug, "owner" | "user" | "readonly" | "webdav")
+}
+
+pub fn create_capability_set<C>(
+    conn: &mut C,
+    tenant_id: Uuid,
+    slug: &str,
+    capabilities: Vec<ApiCapability>,
+) -> Result<CapabilitySet, AppError>
+where
+    C: Connection<Backend = Pg> + diesel::connection::LoadConnection,
+{
+    let normalized = normalize_capabilities(capabilities)?;
+
+    conn.transaction::<CapabilitySet, AppError, _>(|conn| {
+        if cs_dsl::capability_sets
+            .filter(cs_dsl::tenant_id.eq(tenant_id))
+            .filter(cs_dsl::slug.eq(slug))
+            .first::<CapabilitySet>(conn)
+            .optional()
+            .map_err(AppError::from)?
+            .is_some()
+        {
+            return Err(AppError::conflict("capability set slug already exists"));
+        }
+
+        let set = NewCapabilitySet {
+            id: Uuid::new_v4(),
+            tenant_id,
+            slug: slug.to_owned(),
+            cap_version: 1,
+            is_system: false,
+        };
+
+        diesel::insert_into(capability_sets::table)
+            .values(&set)
+            .execute(conn)
+            .map_err(AppError::from)?;
+
+        persist_capabilities(conn, set.id, &normalized)?;
+
+        capability_sets::table
+            .find(set.id)
+            .first::<CapabilitySet>(conn)
+            .map_err(AppError::from)
+    })
+}
+
+pub fn normalize_capabilities(
+    mut capabilities: Vec<ApiCapability>,
+) -> Result<Vec<ApiCapability>, AppError> {
+    if capabilities.is_empty() {
+        return Err(AppError::bad_request("at least one capability is required"));
+    }
+
+    capabilities.sort_by(|a, b| a.as_str().cmp(b.as_str()));
+    capabilities.dedup();
+    Ok(capabilities)
+}
+
+pub fn load_capabilities_for_set<C>(
+    conn: &mut C,
+    capability_set_id: Uuid,
+) -> Result<Vec<ApiCapability>, AppError>
+where
+    C: Connection<Backend = Pg> + diesel::connection::LoadConnection,
+{
+    let mut capabilities: Vec<ApiCapability> = csc_dsl::capability_set_capabilities
+        .filter(csc_dsl::capability_set_id.eq(capability_set_id))
+        .select(csc_dsl::capability)
+        .load(conn)
+        .map_err(AppError::from)?;
+
+    capabilities.sort_by(|a, b| a.as_str().cmp(b.as_str()));
+    Ok(capabilities)
+}
+
+pub fn ensure_capability_set<C>(
+    conn: &mut C,
+    tenant_id: Uuid,
+    capabilities: &[ApiCapability],
+) -> Result<CapabilitySet, AppError>
+where
+    C: Connection<Backend = Pg> + diesel::connection::LoadConnection,
+{
+    if capabilities.is_empty() {
+        return Err(AppError::bad_request("at least one capability is required"));
+    }
+
+    let slug = compute_slug(capabilities);
+    conn.transaction::<CapabilitySet, AppError, _>(|conn| {
+        if let Some(existing) = cs_dsl::capability_sets
+            .filter(cs_dsl::tenant_id.eq(tenant_id))
+            .filter(cs_dsl::slug.eq(&slug))
+            .first::<CapabilitySet>(conn)
+            .optional()
+            .map_err(AppError::from)?
+        {
+            ensure_capability_membership(conn, &existing, capabilities)?;
+            return Ok(existing);
+        }
+
+        let set = NewCapabilitySet {
+            id: Uuid::new_v4(),
+            tenant_id,
+            slug: slug.clone(),
+            cap_version: 1,
+            is_system: matches!(slug.as_str(), "owner" | "user" | "readonly" | "webdav"),
+        };
+
+        diesel::insert_into(capability_sets::table)
+            .values(&set)
+            .execute(conn)
+            .map_err(AppError::from)?;
+
+        persist_capabilities(conn, set.id, capabilities)?;
+
+        Ok(capability_sets::table
+            .find(set.id)
+            .first::<CapabilitySet>(conn)
+            .map_err(AppError::from)?)
+    })
+}
+
+pub fn refresh_capability_set<C>(
+    conn: &mut C,
+    set: &CapabilitySet,
+    capabilities: &[ApiCapability],
+) -> Result<CapabilitySet, AppError>
+where
+    C: Connection<Backend = Pg> + diesel::connection::LoadConnection,
+{
+    conn.transaction::<CapabilitySet, AppError, _>(|conn| {
+        diesel::delete(
+            csc_dsl::capability_set_capabilities.filter(csc_dsl::capability_set_id.eq(set.id)),
+        )
+        .execute(conn)
+        .map_err(AppError::from)?;
+
+        persist_capabilities(conn, set.id, capabilities)?;
+
+        diesel::update(capability_sets::table.find(set.id))
+            .set((
+                cs_dsl::cap_version.eq(set.cap_version + 1),
+                cs_dsl::updated_at.eq(Utc::now().naive_utc()),
+            ))
+            .execute(conn)
+            .map_err(AppError::from)?;
+
+        capability_sets::table
+            .find(set.id)
+            .first::<CapabilitySet>(conn)
+            .map_err(AppError::from)
+    })
+}
+
+pub fn load_capability_set<C>(conn: &mut C, id: Uuid) -> Result<CapabilitySet, AppError>
+where
+    C: Connection<Backend = Pg> + diesel::connection::LoadConnection,
+{
+    capability_sets::table
+        .find(id)
+        .first::<CapabilitySet>(conn)
+        .map_err(AppError::from)
+}
+
+pub fn compute_slug(capabilities: &[ApiCapability]) -> String {
+    if capabilities == owner_capabilities() {
+        return "owner".to_string();
+    }
+
+    if capabilities == user_capabilities() {
+        return "user".to_string();
+    }
+
+    if capabilities == readonly_capabilities() {
+        return "readonly".to_string();
+    }
+
+    if capabilities == webdav_capabilities() {
+        return "webdav".to_string();
+    }
+
+    let joined = capabilities
+        .iter()
+        .map(|cap| cap.as_str())
+        .collect::<Vec<_>>()
+        .join(",");
+
+    let digest = Sha256::digest(joined.as_bytes());
+    let hex = hex::encode(digest);
+    format!("caps-{}", &hex[..12])
+}
+
+fn ensure_capability_membership<C>(
+    conn: &mut C,
+    set: &CapabilitySet,
+    desired: &[ApiCapability],
+) -> Result<(), AppError>
+where
+    C: Connection<Backend = Pg> + diesel::connection::LoadConnection,
+{
+    let current = load_capabilities_for_set(conn, set.id)?;
+    if current == desired {
+        return Ok(());
+    }
+
+    let _ = refresh_capability_set(conn, set, desired)?;
+    Ok(())
+}
+
+fn persist_capabilities<C>(
+    conn: &mut C,
+    set_id: Uuid,
+    capabilities: &[ApiCapability],
+) -> Result<(), AppError>
+where
+    C: Connection<Backend = Pg> + diesel::connection::LoadConnection,
+{
+    if capabilities.is_empty() {
+        return Err(AppError::bad_request("at least one capability is required"));
+    }
+
+    let records: Vec<NewCapabilitySetCapability> = capabilities
+        .iter()
+        .map(|cap| NewCapabilitySetCapability {
+            capability_set_id: set_id,
+            capability: *cap,
+        })
+        .collect();
+
+    diesel::insert_into(capability_set_capabilities::table)
+        .values(&records)
+        .execute(conn)
+        .map_err(AppError::from)?;
+
+    Ok(())
+}

backend/src/auth/jwt.rs

@@ -2,10 +2,29 @@ use anyhow::Result;
 use chrono::{Duration, Utc};
 use jsonwebtoken::{decode, encode, DecodingKey, EncodingKey, Header, Validation};
 use serde::{Deserialize, Serialize};
+use utoipa::ToSchema;
 use uuid::Uuid;
 
 use crate::config::AppConfig;
 
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, ToSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum PrincipalKind {
+    UserSession,
+    ApiToken,
+}
+
+#[derive(Debug, Clone)]
+pub struct AccessTokenContext {
+    pub user_id: Uuid,
+    pub tenant_id: Uuid,
+    pub username: String,
+    pub principal_kind: PrincipalKind,
+    pub principal_id: Uuid,
+    pub capability_set_id: Uuid,
+    pub cap_version: i32,
+}
+
 #[derive(Clone)]
 pub struct JwtService {
     encoding: EncodingKey,
@@ -23,28 +42,34 @@ pub struct JwtService {
 
 impl JwtService {
     pub fn from_config(config: &AppConfig) -> Result<Self> {
+        let access_expiry = Duration::minutes(config.jwt_expiry_minutes);
+
         Ok(Self {
             encoding: EncodingKey::from_secret(config.jwt_secret.as_bytes()),
             decoding: DecodingKey::from_secret(config.jwt_secret.as_bytes()),
             issuer: config.jwt_issuer.clone(),
             audience: config.jwt_audience.clone(),
-            expiry: Duration::minutes(config.jwt_expiry_minutes),
+            expiry: access_expiry,
             download_audience: config.download_token_audience.clone(),
             download_expiry: Duration::minutes(config.download_token_expiry_minutes),
             selector_audience: format!("{}:tenant-selector", config.jwt_audience),
-            selector_expiry: Duration::minutes(15),
+            selector_expiry: access_expiry,
             signup_audience: format!("{}:signup", config.jwt_audience),
             signup_expiry: Duration::minutes(15),
         })
     }
 
-    pub fn generate_token(&self, user_id: Uuid, tenant_id: Uuid, username: &str) -> Result<String> {
+    pub fn generate_token(&self, context: AccessTokenContext) -> Result<String> {
         let now = Utc::now();
         let exp = now + self.expiry;
         let claims = Claims {
-            sub: user_id,
-            tenant_id,
-            username: username.to_owned(),
+            sub: context.user_id,
+            tenant_id: context.tenant_id,
+            username: context.username,
+            principal_kind: context.principal_kind,
+            principal_id: context.principal_id,
+            capability_set_id: context.capability_set_id,
+            cap_version: context.cap_version,
             iss: self.issuer.clone(),
             aud: self.audience.clone(),
             iat: now.timestamp() as usize,
@@ -65,13 +90,38 @@ impl JwtService {
     pub fn generate_download_token(
         &self,
         document_id: Uuid,
+        version_id: Uuid,
         user_id: Uuid,
         tenant_id: Uuid,
     ) -> Result<String> {
         let now = Utc::now();
         let exp = now + self.download_expiry;
         let claims = DownloadClaims {
-            doc_id: document_id,
+            subject: DownloadSubject::Document {
+                doc_id: document_id,
+                version_id,
+            },
+            user_id,
+            tenant_id,
+            iss: self.issuer.clone(),
+            aud: self.download_audience.clone(),
+            iat: now.timestamp() as usize,
+            exp: exp.timestamp() as usize,
+        };
+
+        Ok(encode(&Header::default(), &claims, &self.encoding)?)
+    }
+
+    pub fn generate_asset_download_token(
+        &self,
+        asset_id: Uuid,
+        user_id: Uuid,
+        tenant_id: Uuid,
+    ) -> Result<String> {
+        let now = Utc::now();
+        let exp = now + self.download_expiry;
+        let claims = DownloadClaims {
+            subject: DownloadSubject::Asset { asset_id },
             user_id,
             tenant_id,
             iss: self.issuer.clone(),
@@ -148,15 +198,27 @@ pub struct Claims {
     pub sub: Uuid,
     pub tenant_id: Uuid,
     pub username: String,
+    pub principal_kind: PrincipalKind,
+    pub principal_id: Uuid,
+    pub capability_set_id: Uuid,
+    pub cap_version: i32,
     pub iss: String,
     pub aud: String,
     pub iat: usize,
     pub exp: usize,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(tag = "scope", rename_all = "snake_case")]
+pub enum DownloadSubject {
+    Document { doc_id: Uuid, version_id: Uuid },
+    Asset { asset_id: Uuid },
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct DownloadClaims {
-    pub doc_id: Uuid,
+    #[serde(flatten)]
+    pub subject: DownloadSubject,
     pub user_id: Uuid,
     pub tenant_id: Uuid,
     pub iss: String,

backend/src/auth/mod.rs

@@ -1,57 +1,153 @@
+pub mod api_tokens;
+pub mod capability_guard;
+pub mod capability_sets;
 pub mod jwt;
 pub mod passkeys;
 pub mod password;
-pub mod webdav_tokens;
 
-use axum::{async_trait, extract::FromRequestParts, http::request::Parts};
+use std::sync::{Arc, Mutex};
+
+use axum::{
+    extract::FromRequestParts,
+    http::{request::Parts, StatusCode},
+};
 use axum_extra::headers::{authorization::Bearer, Authorization};
 use axum_extra::TypedHeader;
+use diesel::{pg::PgConnection, prelude::*};
 use serde::{Deserialize, Serialize};
+use utoipa::ToSchema;
 
 use crate::{
-    error::AppError,
+    auth::capability_sets::{load_capabilities_for_set, load_capability_set},
+    error::{AppError, AppResult},
+    models::{ApiCapability, TenantStatus},
+    schema::tenants::dsl as tenant_dsl,
     state::{AppState, PgPooledConnection},
 };
 use uuid::Uuid;
 
-#[derive(Debug, Clone, Serialize, Deserialize)]
+use crate::auth::jwt::PrincipalKind;
+
+#[derive(Debug, Clone)]
+pub struct TenantMembershipUser {
+    pub user_id: Uuid,
+}
+
+impl FromRequestParts<AppState> for TenantMembershipUser {
+    type Rejection = AppError;
+
+    #[allow(refining_impl_trait)]
+    fn from_request_parts<'a>(
+        parts: &'a mut Parts,
+        state: &AppState,
+    ) -> impl std::future::Future<Output = Result<Self, Self::Rejection>> + Send + 'a {
+        let state = state.clone();
+        async move {
+            let TypedHeader(Authorization(bearer)) =
+                TypedHeader::<Authorization<Bearer>>::from_request_parts(parts, &state)
+                    .await
+                    .map_err(|_| AppError::unauthorized())?;
+
+            if let Ok(claims) = state.jwt.verify_token(bearer.token()) {
+                return Ok(Self {
+                    user_id: claims.sub,
+                });
+            }
+
+            let selector = state
+                .jwt
+                .verify_tenant_selector_token(bearer.token())
+                .map_err(|_| AppError::unauthorized())?;
+
+            Ok(Self {
+                user_id: selector.sub,
+            })
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct TenantConnectionHolder {
+    inner: Arc<Mutex<Option<PgPooledConnection>>>,
+}
+
+impl TenantConnectionHolder {
+    pub fn new(conn: PgPooledConnection) -> Self {
+        Self {
+            inner: Arc::new(Mutex::new(Some(conn))),
+        }
+    }
+
+    pub fn into_conn(self) -> Option<PgPooledConnection> {
+        self.inner.lock().ok()?.take()
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
 pub struct AuthenticatedUser {
     pub user_id: uuid::Uuid,
     pub username: String,
     pub tenant_id: uuid::Uuid,
+    pub principal_kind: PrincipalKind,
+    pub principal_id: Uuid,
+    pub capability_set_id: Uuid,
+    pub cap_version: i32,
+    pub capabilities: Vec<ApiCapability>,
 }
 
-#[async_trait]
 impl FromRequestParts<AppState> for AuthenticatedUser {
     type Rejection = AppError;
 
-    async fn from_request_parts(
-        parts: &mut Parts,
+    #[allow(refining_impl_trait)]
+    fn from_request_parts<'a>(
+        parts: &'a mut Parts,
         state: &AppState,
-    ) -> Result<Self, Self::Rejection> {
-        if let Some(user) = parts.extensions.get::<AuthenticatedUser>() {
-            return Ok(user.clone());
-        }
+    ) -> impl std::future::Future<Output = Result<Self, Self::Rejection>> + Send + 'a {
+        let state = state.clone();
+        async move {
+            if let Some(user) = parts.extensions.get::<AuthenticatedUser>() {
+                return Ok(user.clone());
+            }
 
-        let TypedHeader(Authorization(bearer)) =
-            TypedHeader::<Authorization<Bearer>>::from_request_parts(parts, state)
-                .await
+            let TypedHeader(Authorization(bearer)) =
+                TypedHeader::<Authorization<Bearer>>::from_request_parts(parts, &state)
+                    .await
+                    .map_err(|_| AppError::unauthorized())?;
+
+            let claims = state
+                .jwt
+                .verify_token(bearer.token())
                 .map_err(|_| AppError::unauthorized())?;
 
-        let claims = state
-            .jwt
-            .verify_token(bearer.token())
-            .map_err(|_| AppError::unauthorized())?;
+            let mut tenant_conn = state.db_for_tenant(claims.tenant_id)?;
+            let capability_set = load_capability_set(&mut tenant_conn, claims.capability_set_id)
+                .map_err(|_| AppError::unauthorized())?;
 
-        let user = AuthenticatedUser {
-            user_id: claims.sub,
-            username: claims.username,
-            tenant_id: claims.tenant_id,
-        };
+            if capability_set.cap_version != claims.cap_version {
+                return Err(AppError::unauthorized());
+            }
 
-        parts.extensions.insert(user.clone());
+            let capabilities = load_capabilities_for_set(&mut tenant_conn, capability_set.id)
+                .map_err(|_| AppError::unauthorized())?;
 
-        Ok(user)
+            let user = AuthenticatedUser {
+                user_id: claims.sub,
+                username: claims.username,
+                tenant_id: claims.tenant_id,
+                principal_kind: claims.principal_kind,
+                principal_id: claims.principal_id,
+                capability_set_id: claims.capability_set_id,
+                cap_version: claims.cap_version,
+                capabilities,
+            };
+
+            parts.extensions.insert(user.clone());
+            parts
+                .extensions
+                .insert(TenantConnectionHolder::new(tenant_conn));
+
+            Ok(user)
+        }
     }
 }
 
@@ -68,23 +164,58 @@ impl TenantScopedConn {
     }
 }
 
-#[async_trait]
 impl FromRequestParts<AppState> for TenantScopedConn {
     type Rejection = AppError;
 
-    async fn from_request_parts(
-        parts: &mut Parts,
+    #[allow(refining_impl_trait)]
+    fn from_request_parts<'a>(
+        parts: &'a mut Parts,
         state: &AppState,
-    ) -> Result<Self, Self::Rejection> {
-        let user = AuthenticatedUser::from_request_parts(parts, state).await?;
-        let tenant_id = user.tenant_id;
-        let conn = state.db_for_tenant(tenant_id)?;
+    ) -> impl std::future::Future<Output = Result<Self, Self::Rejection>> + Send + 'a {
+        let state = state.clone();
+        async move {
+            let user = AuthenticatedUser::from_request_parts(parts, &state).await?;
+            let tenant_id = user.tenant_id;
+            let mut conn = if let Some(holder) = parts.extensions.remove::<TenantConnectionHolder>()
+            {
+                holder
+                    .into_conn()
+                    .ok_or_else(|| AppError::internal("tenant connection unavailable"))?
+            } else {
+                state.db_for_tenant(tenant_id)?
+            };
 
-        Ok(Self {
-            conn,
-            tenant_id,
-            user_id: user.user_id,
-            user,
-        })
+            ensure_active_tenant_with_conn(&mut conn, tenant_id)?;
+
+            Ok(Self {
+                conn,
+                tenant_id,
+                user_id: user.user_id,
+                user,
+            })
+        }
     }
 }
+
+pub(crate) fn ensure_active_tenant(state: &AppState, tenant_id: Uuid) -> AppResult<()> {
+    let mut conn = state.db_unscoped()?;
+    ensure_active_tenant_with_conn(&mut conn, tenant_id)
+}
+
+pub(crate) fn ensure_active_tenant_with_conn(
+    conn: &mut PgConnection,
+    tenant_id: Uuid,
+) -> AppResult<()> {
+    use tenant_dsl::tenants;
+
+    let status: TenantStatus = tenants
+        .find(tenant_id)
+        .select(tenant_dsl::status)
+        .first(conn)?;
+
+    if status != TenantStatus::Active {
+        return Err(AppError::new(StatusCode::FORBIDDEN, "tenant is not active"));
+    }
+
+    Ok(())
+}

backend/src/auth/passkeys.rs

@@ -56,6 +56,7 @@ impl PreparedPasskey {
 pub struct RegistrationChallengeResponse {
     pub challenge_id: Uuid,
     #[serde(flatten)]
+    #[schema(value_type = Object)]
     pub challenge: CreationChallengeResponse,
 }
 
@@ -64,6 +65,7 @@ pub struct RegistrationChallengeResponse {
 pub struct AuthenticationChallengeResponse {
     pub challenge_id: Uuid,
     #[serde(flatten)]
+    #[schema(value_type = Object)]
     pub challenge: RequestChallengeResponse,
 }
 
@@ -116,13 +118,55 @@ impl PasskeyService {
         .execute(conn);
     }
 
+    fn begin_registration(
+        &self,
+        conn: &mut PgConnection,
+        user_id: Uuid,
+        username: &str,
+        challenge_user_id: Option<Uuid>,
+        exclude: Option<Vec<CredentialID>>,
+    ) -> AppResult<RegistrationChallengeResponse> {
+        self.prune_expired(conn);
+
+        let (challenge, state) = self
+            .webauthn
+            .start_passkey_registration(user_id, username, username, exclude)
+            .map_err(|err| {
+                tracing::error!(error = %err, "failed to start passkey registration");
+                AppError::internal("failed to start passkey registration")
+            })?;
+
+        let challenge_id = Uuid::new_v4();
+        let expires_at = (Utc::now() + self.challenge_ttl).naive_utc();
+        let challenge_bytes: Vec<u8> = challenge.public_key.challenge.clone().into();
+        let state_bytes = serde_json::to_vec(&state)
+            .context("failed to encode passkey registration state")
+            .map_err(AppError::internal)?;
+
+        let record = NewWebauthnChallenge {
+            id: challenge_id,
+            user_id: challenge_user_id,
+            purpose: PURPOSE_REGISTRATION.to_string(),
+            challenge: challenge_bytes,
+            state: state_bytes,
+            expires_at,
+        };
+
+        diesel::insert_into(challenge_dsl::webauthn_challenges)
+            .values(&record)
+            .execute(conn)?;
+
+        Ok(RegistrationChallengeResponse {
+            challenge_id,
+            challenge,
+        })
+    }
+
     pub fn start_registration(
         &self,
         conn: &mut PgConnection,
         user: &User,
     ) -> AppResult<RegistrationChallengeResponse> {
-        self.prune_expired(conn);
-
         let existing: Vec<UserPasskey> = passkey_dsl::user_passkeys
             .filter(passkey_dsl::user_id.eq(user.id))
             .filter(passkey_dsl::revoked_at.is_null())
@@ -139,38 +183,7 @@ impl PasskeyService {
             )
         };
 
-        let (challenge, state) = self
-            .webauthn
-            .start_passkey_registration(user.id, &user.username, &user.username, exclude)
-            .map_err(|err| {
-                tracing::error!(error = %err, "failed to start passkey registration");
-                AppError::internal("failed to start passkey registration")
-            })?;
-
-        let challenge_id = Uuid::new_v4();
-        let expires_at = (Utc::now() + self.challenge_ttl).naive_utc();
-        let challenge_bytes: Vec<u8> = challenge.public_key.challenge.clone().into();
-        let state_bytes = serde_json::to_vec(&state)
-            .context("failed to encode passkey registration state")
-            .map_err(AppError::internal)?;
-
-        let record = NewWebauthnChallenge {
-            id: challenge_id,
-            user_id: Some(user.id),
-            purpose: PURPOSE_REGISTRATION.to_string(),
-            challenge: challenge_bytes,
-            state: state_bytes,
-            expires_at,
-        };
-
-        diesel::insert_into(challenge_dsl::webauthn_challenges)
-            .values(&record)
-            .execute(conn)?;
-
-        Ok(RegistrationChallengeResponse {
-            challenge_id,
-            challenge,
-        })
+        self.begin_registration(conn, user.id, &user.username, Some(user.id), exclude)
     }
 
     pub fn start_signup_registration(
@@ -179,50 +192,16 @@ impl PasskeyService {
         user_id: Uuid,
         username: &str,
     ) -> AppResult<RegistrationChallengeResponse> {
-        self.prune_expired(conn);
-
-        let (challenge, state) = self
-            .webauthn
-            .start_passkey_registration(user_id, username, username, None)
-            .map_err(|err| {
-                tracing::error!(error = %err, "failed to start passkey registration");
-                AppError::internal("failed to start passkey registration")
-            })?;
-
-        let challenge_id = Uuid::new_v4();
-        let expires_at = (Utc::now() + self.challenge_ttl).naive_utc();
-        let challenge_bytes: Vec<u8> = challenge.public_key.challenge.clone().into();
-        let state_bytes = serde_json::to_vec(&state)
-            .context("failed to encode passkey registration state")
-            .map_err(AppError::internal)?;
-
-        let record = NewWebauthnChallenge {
-            id: challenge_id,
-            user_id: None,
-            purpose: PURPOSE_REGISTRATION.to_string(),
-            challenge: challenge_bytes,
-            state: state_bytes,
-            expires_at,
-        };
-
-        diesel::insert_into(challenge_dsl::webauthn_challenges)
-            .values(&record)
-            .execute(conn)?;
-
-        Ok(RegistrationChallengeResponse {
-            challenge_id,
-            challenge,
-        })
+        self.begin_registration(conn, user_id, username, None, None)
     }
 
-    pub fn finish_registration(
+    fn complete_registration(
         &self,
         conn: &mut PgConnection,
-        user: &User,
         challenge_id: Uuid,
-        credential: RegisterPublicKeyCredential,
-        nickname: Option<String>,
-    ) -> AppResult<UserPasskey> {
+        credential: &RegisterPublicKeyCredential,
+        expected_user: Option<Uuid>,
+    ) -> AppResult<PreparedPasskey> {
         let record: WebauthnChallenge = challenge_dsl::webauthn_challenges
             .find(challenge_id)
             .first(conn)
@@ -238,8 +217,14 @@ impl PasskeyService {
             return Err(AppError::bad_request("challenge is not for registration"));
         }
 
-        if record.user_id != Some(user.id) {
-            return Err(AppError::unauthorized());
+        if let Some(expected) = expected_user {
+            if record.user_id != Some(expected) {
+                return Err(AppError::unauthorized());
+            }
+        } else if record.user_id.is_some() {
+            return Err(AppError::bad_request(
+                "unexpected user context for signup registration",
+            ));
         }
 
         if record.expires_at < Utc::now().naive_utc() {
@@ -253,7 +238,7 @@ impl PasskeyService {
 
         let passkey = self
             .webauthn
-            .finish_passkey_registration(&credential, &state)
+            .finish_passkey_registration(credential, &state)
             .map_err(|err| {
                 tracing::warn!(error = %err, "passkey registration validation failed");
                 AppError::bad_request("invalid passkey attestation")
@@ -294,24 +279,36 @@ impl PasskeyService {
             .context("failed to serialise passkey")
             .map_err(AppError::internal)?;
 
-        let new_passkey = NewUserPasskey {
+        diesel::delete(challenge_dsl::webauthn_challenges.find(challenge_id)).execute(conn)?;
+
+        Ok(PreparedPasskey {
             id: Uuid::new_v4(),
-            user_id: user.id,
             credential_id: credential_id_vec,
             public_key: public_key_bytes,
             credential: credential_json,
             sign_count: credential_struct.counter as i64,
             transports,
             aaguid,
-            nickname,
-        };
+        })
+    }
+
+    pub fn finish_registration(
+        &self,
+        conn: &mut PgConnection,
+        user: &User,
+        challenge_id: Uuid,
+        credential: RegisterPublicKeyCredential,
+        nickname: Option<String>,
+    ) -> AppResult<UserPasskey> {
+        let prepared =
+            self.complete_registration(conn, challenge_id, &credential, Some(user.id))?;
+
+        let new_passkey = prepared.into_new_user_passkey(user.id, nickname);
 
         diesel::insert_into(passkey_dsl::user_passkeys)
             .values(&new_passkey)
             .execute(conn)?;
 
-        diesel::delete(challenge_dsl::webauthn_challenges.find(challenge_id)).execute(conn)?;
-
         let created: UserPasskey = passkey_dsl::user_passkeys
             .find(new_passkey.id)
             .select(UserPasskey::as_select())
@@ -408,84 +405,7 @@ impl PasskeyService {
         challenge_id: Uuid,
         credential: &RegisterPublicKeyCredential,
     ) -> AppResult<PreparedPasskey> {
-        let record: WebauthnChallenge = challenge_dsl::webauthn_challenges
-            .find(challenge_id)
-            .first(conn)
-            .map_err(|err| {
-                if matches!(err, diesel::result::Error::NotFound) {
-                    AppError::bad_request("challenge not found")
-                } else {
-                    AppError::from(err)
-                }
-            })?;
-
-        if record.purpose != PURPOSE_REGISTRATION {
-            return Err(AppError::bad_request("challenge is not for registration"));
-        }
-
-        if record.expires_at < Utc::now().naive_utc() {
-            diesel::delete(challenge_dsl::webauthn_challenges.find(challenge_id)).execute(conn)?;
-            return Err(AppError::bad_request("challenge expired"));
-        }
-
-        let state: PasskeyRegistration = serde_json::from_slice(&record.state)
-            .context("failed to decode registration state")
-            .map_err(AppError::internal)?;
-
-        let passkey = self
-            .webauthn
-            .finish_passkey_registration(credential, &state)
-            .map_err(|err| {
-                tracing::warn!(error = %err, "passkey registration validation failed");
-                AppError::bad_request("invalid passkey attestation")
-            })?;
-
-        let credential_struct: Credential = passkey.clone().into();
-        let credential_id_vec: Vec<u8> = credential_struct.cred_id.clone().into();
-
-        let duplicate = passkey_dsl::user_passkeys
-            .filter(passkey_dsl::credential_id.eq(&credential_id_vec))
-            .first::<UserPasskey>(conn)
-            .optional()?;
-        if duplicate.is_some() {
-            diesel::delete(challenge_dsl::webauthn_challenges.find(challenge_id)).execute(conn)?;
-            return Err(AppError::conflict("credential already registered"));
-        }
-
-        let public_key_bytes = serde_cbor_2::to_vec(&credential_struct.cred)
-            .context("failed to encode credential public key")
-            .map_err(AppError::internal)?;
-
-        let transports: Vec<Option<String>> = credential_struct
-            .transports
-            .clone()
-            .unwrap_or_default()
-            .into_iter()
-            .map(|transport| Some(transport.as_ref().to_string()))
-            .collect();
-
-        let aaguid = match credential_struct.attestation.metadata {
-            AttestationMetadata::Packed { aaguid } | AttestationMetadata::Tpm { aaguid, .. } => {
-                Some(aaguid)
-            }
-            _ => None,
-        };
-
-        let credential_json = serde_json::to_value(&passkey)
-            .context("failed to serialise passkey")
-            .map_err(AppError::internal)?;
-
-        diesel::delete(challenge_dsl::webauthn_challenges.find(challenge_id)).execute(conn)?;
-
-        Ok(PreparedPasskey {
-            id: Uuid::new_v4(),
-            credential_id: credential_id_vec,
-            public_key: public_key_bytes,
-            credential: credential_json,
-            sign_count: credential_struct.counter as i64,
-            transports,
-            aaguid,
-        })
+        self.complete_registration(conn, challenge_id, credential, None)
     }
 
     pub fn revoke_passkey(
@@ -651,6 +571,7 @@ impl From<UserPasskey> for PasskeySummary {
 #[serde(rename_all = "camelCase")]
 pub struct PasskeyRegistrationFinishPayload {
     pub challenge_id: Uuid,
+    #[schema(value_type = Object)]
     pub credential: RegisterPublicKeyCredential,
     #[serde(default)]
     pub nickname: Option<String>,
@@ -666,5 +587,6 @@ pub struct PasskeyLoginStartPayload {
 #[serde(rename_all = "camelCase")]
 pub struct PasskeyLoginFinishPayload {
     pub challenge_id: Uuid,
+    #[schema(value_type = Object)]
     pub credential: PublicKeyCredential,
 }

backend/src/auth/password.rs

@@ -1,9 +1,11 @@
 use anyhow::{anyhow, Result};
 use argon2::{
-    password_hash::{PasswordHash, PasswordHasher, PasswordVerifier, SaltString},
+    password_hash::{
+        rand_core::OsRng as PasswordHashOsRng, PasswordHash, PasswordHasher, PasswordVerifier,
+        SaltString,
+    },
     Argon2,
 };
-use rand::rngs::OsRng;
 
 pub fn verify_password(password: &str, password_hash: &str) -> Result<bool> {
     let parsed_hash = PasswordHash::new(password_hash).map_err(|err| anyhow!(err))?;
@@ -13,7 +15,8 @@ pub fn verify_password(password: &str, password_hash: &str) -> Result<bool> {
 }
 
 pub fn hash_password(password: &str) -> Result<String> {
-    let salt = SaltString::generate(&mut OsRng);
+    let mut rng = PasswordHashOsRng;
+    let salt = SaltString::generate(&mut rng);
     let hash = Argon2::default()
         .hash_password(password.as_bytes(), &salt)
         .map_err(|err| anyhow!(err))?;

backend/src/auth/webdav_tokens.rs

@@ -1,190 +0,0 @@
-use argon2::{
-    password_hash::{PasswordHasher, SaltString},
-    Argon2,
-};
-use chrono::{NaiveDateTime, Utc};
-use diesel::prelude::*;
-use rand::rngs::OsRng;
-use rand::RngCore;
-use uuid::Uuid;
-
-use crate::{
-    error::AppError,
-    models::{NewWebdavToken, WebdavToken},
-    schema::webdav_tokens,
-    state::PgPooledConnection,
-};
-
-const TOKEN_PREFIX_LENGTH: usize = 12;
-const TOKEN_SECRET_LENGTH: usize = 32;
-
-pub struct IssuedWebdavToken {
-    pub token: String,
-    pub record: WebdavToken,
-}
-
-pub fn create_webdav_token(
-    conn: &mut PgPooledConnection,
-    user_id: Uuid,
-    tenant_id: Uuid,
-    label: Option<String>,
-    expires_at: Option<NaiveDateTime>,
-) -> Result<IssuedWebdavToken, AppError> {
-    let raw_secret = generate_secret()?;
-    let token_prefix = raw_secret[..TOKEN_PREFIX_LENGTH].to_string();
-    let token_hash = hash_secret(&raw_secret)?;
-    let new_token = NewWebdavToken {
-        id: Uuid::new_v4(),
-        user_id,
-        tenant_id,
-        token_prefix,
-        token_hash,
-        label,
-        expires_at,
-    };
-
-    let record = diesel::insert_into(webdav_tokens::table)
-        .values(&new_token)
-        .get_result::<WebdavToken>(conn)?;
-
-    Ok(IssuedWebdavToken {
-        token: raw_secret,
-        record,
-    })
-}
-
-pub fn list_webdav_tokens(
-    conn: &mut PgPooledConnection,
-    user_id: Uuid,
-    tenant_id: Option<Uuid>,
-) -> Result<Vec<WebdavToken>, AppError> {
-    let mut query = webdav_tokens::table
-        .filter(webdav_tokens::user_id.eq(user_id))
-        .into_boxed();
-
-    if let Some(tenant_id) = tenant_id {
-        query = query.filter(webdav_tokens::tenant_id.eq(tenant_id));
-    }
-
-    let tokens = query
-        .order(webdav_tokens::created_at.asc())
-        .load::<WebdavToken>(conn)?;
-
-    Ok(tokens)
-}
-
-pub fn find_active_token_by_secret(
-    conn: &mut PgPooledConnection,
-    user_id: Uuid,
-    tenant_id: Option<Uuid>,
-    secret: &str,
-) -> Result<Option<WebdavToken>, AppError> {
-    if secret.len() < TOKEN_PREFIX_LENGTH {
-        return Ok(None);
-    }
-
-    let prefix = &secret[..TOKEN_PREFIX_LENGTH];
-    let mut query = webdav_tokens::table
-        .filter(webdav_tokens::user_id.eq(user_id))
-        .filter(webdav_tokens::token_prefix.eq(prefix))
-        .filter(webdav_tokens::revoked_at.is_null())
-        .into_boxed();
-
-    let now = Utc::now().naive_utc();
-    query = query.filter(
-        webdav_tokens::expires_at
-            .is_null()
-            .or(webdav_tokens::expires_at.gt(now)),
-    );
-
-    if let Some(tenant_id) = tenant_id {
-        query = query.filter(webdav_tokens::tenant_id.eq(tenant_id));
-    }
-
-    let candidates = query.load::<WebdavToken>(conn)?;
-
-    for token in candidates {
-        if verify_token_secret(secret, &token.token_hash)? {
-            return Ok(Some(token));
-        }
-    }
-
-    Ok(None)
-}
-
-pub fn revoke_webdav_token(
-    conn: &mut PgPooledConnection,
-    token_id: Uuid,
-    user_id: Uuid,
-) -> Result<(), AppError> {
-    let affected = diesel::update(
-        webdav_tokens::table
-            .filter(webdav_tokens::id.eq(token_id))
-            .filter(webdav_tokens::user_id.eq(user_id)),
-    )
-    .set(webdav_tokens::revoked_at.eq(Utc::now().naive_utc()))
-    .execute(conn)?;
-
-    if affected == 0 {
-        return Err(AppError::not_found());
-    }
-
-    Ok(())
-}
-
-pub fn touch_webdav_token(conn: &mut PgPooledConnection, token_id: Uuid) -> Result<(), AppError> {
-    diesel::update(webdav_tokens::table.filter(webdav_tokens::id.eq(token_id)))
-        .set(webdav_tokens::last_used_at.eq(Utc::now().naive_utc()))
-        .execute(conn)?;
-    Ok(())
-}
-
-pub fn verify_token_secret(secret: &str, token_hash: &str) -> Result<bool, AppError> {
-    crate::auth::password::verify_password(secret, token_hash).map_err(|err| {
-        tracing::error!(error = ?err, "failed to verify token");
-        AppError::internal("failed to verify token")
-    })
-}
-
-fn generate_secret() -> Result<String, AppError> {
-    let mut buffer = [0u8; TOKEN_SECRET_LENGTH];
-    OsRng.try_fill_bytes(&mut buffer).map_err(|err| {
-        tracing::error!(error = ?err, "failed to generate token");
-        AppError::internal("failed to generate token")
-    })?;
-    Ok(hex::encode(buffer))
-}
-
-fn hash_secret(secret: &str) -> Result<String, AppError> {
-    let salt = SaltString::generate(&mut OsRng);
-    let hash = Argon2::default()
-        .hash_password(secret.as_bytes(), &salt)
-        .map_err(|err| {
-            tracing::error!(error = ?err, "failed to hash token");
-            AppError::internal("failed to hash token")
-        })?;
-    Ok(hash.to_string())
-}
-
-fn _ensure_constants() {
-    assert!(TOKEN_PREFIX_LENGTH < TOKEN_SECRET_LENGTH * 2);
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn generated_secret_has_expected_length() {
-        let secret = generate_secret().unwrap();
-        assert_eq!(secret.len(), TOKEN_SECRET_LENGTH * 2);
-    }
-
-    #[test]
-    fn hash_and_verify_secret_round_trip() {
-        let secret = generate_secret().unwrap();
-        let hash = hash_secret(&secret).unwrap();
-        assert!(verify_token_secret(&secret, &hash).unwrap());
-        assert!(!verify_token_secret("wrong", &hash).unwrap());
-    }
-}

backend/src/bin/admin.rs

@@ -1,29 +1,47 @@
-use std::env;
 use std::sync::Arc;
 
 use anyhow::{anyhow, bail, Context, Result};
-use diesel::{dsl::exists, prelude::*, select};
+use chrono::{Duration as ChronoDuration, Utc};
+use clap::{Parser, Subcommand, ValueEnum};
+use diesel::{dsl::exists, pg::PgConnection, prelude::*, select};
+use diesel_migrations::MigrationHarness;
+use rand::{rngs::OsRng, TryRngCore};
 use reqwest::{Client, Method, StatusCode};
+use sha2::{Digest, Sha256};
+use tokio::task;
 use uuid::Uuid;
 
-use backend::{
-    config::AppConfig,
+use papercrate::{
+    auth::capability_sets::{ensure_capability_set, owner_capabilities},
+    config::{redact_database_url, AppConfig},
     db::{self, PgPool},
     documents::search::ensure_quickwit_index,
-    jobs::{enqueue_job, JOB_ANALYZE_DOCUMENT},
+    jobs::{enqueue_job, JOB_ANALYZE_DOCUMENT, JOB_DELETE_TENANT},
+    migrations::MIGRATIONS,
     models::{
-        DocumentAsset, DocumentAssetObject, NewUser, NewUserMembership, Tenant, TenantStatus, User,
+        DocumentAsset, MagicToken, MagicTokenKind, NewUser, NewUserMembership, Tenant,
+        TenantStatus, User,
     },
     s3,
-    schema::{
-        document_asset_objects, document_assets, documents, tenants, user_memberships, users,
-    },
+    schema::{document_assets, documents, magic_tokens, tenants, user_memberships, users},
     storage::{ObjectStorage, S3Storage, TenantStorage},
-    tenants::TenantService,
-    utils::tracing::init_tracing,
+    tenants::{apply_tenant_guc, clear_tenant_context, TenantService},
+    utils::{text::normalize_identifier, tracing::init_tracing},
+    workers::tenants::{build_delete_proof_message, sign_delete_proof, DeleteAction},
 };
 
-#[derive(Debug)]
+#[derive(Parser)]
+#[command(
+    name = "papercrate-admin",
+    version,
+    about = "Papercrate administration utility"
+)]
+struct Cli {
+    #[command(subcommand)]
+    command: Command,
+}
+
+#[derive(Subcommand)]
 enum Command {
     CreateUser {
         username: String,
@@ -34,11 +52,22 @@ enum Command {
     },
     CreateTenant {
         name: String,
+        #[arg(long = "storage-root")]
         storage_root: Option<String>,
+        #[arg(long = "quickwit-index")]
         quickwit_index: Option<String>,
     },
     DeleteTenant {
         tenant_id: Uuid,
+        #[arg(long = "tenant-name")]
+        tenant_name: String,
+    },
+    ResetTenant {
+        tenant_id: Uuid,
+        #[arg(long = "tenant-name")]
+        tenant_name: String,
+        #[arg(long = "final-status", value_enum, default_value_t = TenantFinalStatusArg::Active)]
+        final_status: TenantFinalStatusArg,
     },
     AddUserToTenant {
         username: String,
@@ -52,71 +81,79 @@ enum Command {
         tenant_id: Uuid,
     },
     ListTenants,
-    DeleteAssets(Uuid),
-    QuickwitCreate(Uuid),
-    QuickwitDelete(Uuid),
+    DeleteAssets {
+        tenant_id: Uuid,
+        #[arg(long = "asset-type")]
+        asset_type: Option<String>,
+        #[arg(long = "all", help = "Confirm deleting every asset for the tenant")]
+        delete_all: bool,
+    },
+    QuickwitCreate {
+        tenant_id: Uuid,
+    },
+    QuickwitDelete {
+        tenant_id: Uuid,
+    },
+    EnqueueDeleteTenant {
+        tenant_id: Uuid,
+        #[arg(long = "tenant-name")]
+        tenant_name: String,
+        #[arg(long = "remove-tenant")]
+        remove_tenant: bool,
+        #[arg(long = "final-status", value_enum)]
+        final_status: Option<TenantFinalStatusArg>,
+    },
+    MagicToken {
+        username: String,
+        #[arg(long = "ttl-minutes", default_value_t = 10)]
+        ttl_minutes: i64,
+        #[arg(
+            long = "max-uses",
+            value_name = "MAX_USES",
+            help = "Maximum number of uses before the token is rejected (default: unlimited)"
+        )]
+        max_uses: Option<i32>,
+        #[arg(long = "kind", value_enum, default_value_t = MagicTokenKindArg::EmailLogin)]
+        kind: MagicTokenKindArg,
+    },
+    MigrateDatabase {
+        #[arg(
+            long = "database-url",
+            value_name = "URL",
+            help = "Override the migrations database URL (defaults to MIGRATIONS_DATABASE_URL or DATABASE_URL)"
+        )]
+        database_url: Option<String>,
+    },
 }
 
-impl Command {
-    fn usage() -> &'static str {
-        "Usage: admin\n\
-            create-user <username>\n\
-            list-users\n\
-            delete-user <username>\n\
-            create-tenant <name> [storage_root] [quickwit_index]\n\
-            delete-tenant <tenant-id>\n\
-            add-user-to-tenant <username> <tenant-id>\n\
-            remove-user-from-tenant <username> <tenant-id>\n\
-            reanalyze-documents <tenant-id>\n\
-            list-tenants\n\
-            delete-assets <tenant-id>\n\
-            quickwit-create-index <tenant-id>\n\
-            quickwit-delete-index <tenant-id>"
-    }
+#[derive(Copy, Clone, Debug, ValueEnum)]
+enum MagicTokenKindArg {
+    #[value(name = "email_login")]
+    EmailLogin,
+    #[value(name = "demo_login")]
+    DemoLogin,
+}
 
-    fn parse_tenant_id(arg: Option<String>) -> Result<Uuid> {
-        let raw = arg.ok_or_else(|| anyhow!("tenant id required"))?;
-        Uuid::parse_str(&raw).map_err(|_| anyhow!("invalid tenant id: {}", raw))
+impl From<MagicTokenKindArg> for MagicTokenKind {
+    fn from(value: MagicTokenKindArg) -> Self {
+        match value {
+            MagicTokenKindArg::EmailLogin => MagicTokenKind::EmailLogin,
+            MagicTokenKindArg::DemoLogin => MagicTokenKind::DemoLogin,
+        }
     }
+}
 
-    fn parse() -> Result<Self> {
-        let mut args = env::args().skip(1);
-        match args.next().as_deref() {
-            Some("create-user") => Ok(Self::CreateUser {
-                username: args.next().ok_or_else(|| anyhow!("username required"))?,
-            }),
-            Some("list-users") => Ok(Self::ListUsers),
-            Some("delete-user") => Ok(Self::DeleteUser {
-                username: args.next().ok_or_else(|| anyhow!("username required"))?,
-            }),
-            Some("create-tenant") => Ok(Self::CreateTenant {
-                name: args.next().ok_or_else(|| anyhow!("tenant name required"))?,
-                storage_root: args.next(),
-                quickwit_index: args.next(),
-            }),
-            Some("delete-tenant") => Ok(Self::DeleteTenant {
-                tenant_id: Self::parse_tenant_id(args.next())?,
-            }),
-            Some("add-user-to-tenant") => Ok(Self::AddUserToTenant {
-                username: args.next().ok_or_else(|| anyhow!("username required"))?,
-                tenant_id: Self::parse_tenant_id(args.next())?,
-            }),
-            Some("remove-user-from-tenant") => Ok(Self::RemoveUserFromTenant {
-                username: args.next().ok_or_else(|| anyhow!("username required"))?,
-                tenant_id: Self::parse_tenant_id(args.next())?,
-            }),
-            Some("reanalyze-documents") => Ok(Self::ReanalyzeDocuments {
-                tenant_id: Self::parse_tenant_id(args.next())?,
-            }),
-            Some("list-tenants") => Ok(Self::ListTenants),
-            Some("delete-assets") => Ok(Self::DeleteAssets(Self::parse_tenant_id(args.next())?)),
-            Some("quickwit-create-index") => {
-                Ok(Self::QuickwitCreate(Self::parse_tenant_id(args.next())?))
-            }
-            Some("quickwit-delete-index") => {
-                Ok(Self::QuickwitDelete(Self::parse_tenant_id(args.next())?))
-            }
-            _ => Err(anyhow!(Self::usage())),
+#[derive(Copy, Clone, Debug, ValueEnum)]
+enum TenantFinalStatusArg {
+    Active,
+    Suspended,
+}
+
+impl TenantFinalStatusArg {
+    fn as_str(&self) -> &'static str {
+        match self {
+            TenantFinalStatusArg::Active => "active",
+            TenantFinalStatusArg::Suspended => "suspended",
         }
     }
 }
@@ -124,11 +161,11 @@ impl Command {
 #[tokio::main]
 async fn main() -> Result<()> {
     init_tracing("info");
-    let command = Command::parse()?;
+    let cli = Cli::parse();
     let config = AppConfig::load_and_log("admin")?;
     let pool = db::init_pool_with_size(&config.database_url, config.database_max_pool_size)?;
 
-    match command {
+    match cli.command {
         Command::CreateUser { username } => create_user(&pool, &username)?,
         Command::ListUsers => list_users(&pool)?,
         Command::DeleteUser { username } => delete_user(&pool, &username)?,
@@ -137,7 +174,15 @@ async fn main() -> Result<()> {
             storage_root,
             quickwit_index,
         } => create_tenant(&pool, &name, storage_root, quickwit_index)?,
-        Command::DeleteTenant { tenant_id } => delete_tenant(&pool, tenant_id)?,
+        Command::DeleteTenant {
+            tenant_id,
+            tenant_name,
+        } => delete_tenant(&config, &pool, tenant_id, &tenant_name)?,
+        Command::ResetTenant {
+            tenant_id,
+            tenant_name,
+            final_status,
+        } => reset_tenant(&config, &pool, tenant_id, &tenant_name, final_status)?,
         Command::AddUserToTenant {
             username,
             tenant_id,
@@ -148,35 +193,94 @@ async fn main() -> Result<()> {
         } => remove_user_from_tenant(&pool, &username, tenant_id)?,
         Command::ReanalyzeDocuments { tenant_id } => reanalyze_documents(&pool, tenant_id)?,
         Command::ListTenants => list_tenants(&pool)?,
-        Command::DeleteAssets(tenant_id) => {
-            delete_assets_for_tenant(&config, &pool, tenant_id).await?
+        Command::DeleteAssets {
+            tenant_id,
+            asset_type,
+            delete_all,
+        } => {
+            let asset_type = asset_type.as_deref();
+            if asset_type.is_none() && !delete_all {
+                bail!("refusing to delete all assets without --all confirmation");
+            }
+
+            delete_assets_for_tenant(&config, &pool, tenant_id, asset_type).await?
         }
-        Command::QuickwitCreate(tenant_id) => {
+        Command::QuickwitCreate { tenant_id } => {
             quickwit_index(&config, &pool, tenant_id, Method::POST).await?
         }
-        Command::QuickwitDelete(tenant_id) => {
+        Command::QuickwitDelete { tenant_id } => {
             quickwit_index(&config, &pool, tenant_id, Method::DELETE).await?
         }
+        Command::EnqueueDeleteTenant {
+            tenant_id,
+            tenant_name,
+            remove_tenant,
+            final_status,
+        } => enqueue_delete_tenant_job(
+            &config,
+            &pool,
+            tenant_id,
+            &tenant_name,
+            remove_tenant,
+            final_status,
+        )?,
+        Command::MagicToken {
+            username,
+            ttl_minutes,
+            max_uses,
+            kind,
+        } => {
+            create_magic_token(&pool, &username, ttl_minutes, max_uses, kind.into())?;
+        }
+        Command::MigrateDatabase { database_url } => {
+            let url = database_url.unwrap_or_else(|| config.migrations_database_url().to_string());
+            migrate_database(url).await?;
+        }
     }
 
     Ok(())
 }
 
+async fn migrate_database(database_url: String) -> Result<()> {
+    let redacted = redact_database_url(&database_url);
+    tracing::info!(database_url = %redacted, "running pending migrations");
+
+    let result = task::spawn_blocking(move || -> Result<()> {
+        let mut conn =
+            PgConnection::establish(&database_url).context("failed to connect to database")?;
+        conn.run_pending_migrations(MIGRATIONS)
+            .map_err(|err| anyhow!("failed to run migrations: {err}"))?;
+        Ok(())
+    })
+    .await
+    .context("migration task panicked")?;
+
+    result?;
+    tracing::info!(database_url = %redacted, "migrations completed");
+    Ok(())
+}
+
 fn create_user(pool: &PgPool, username: &str) -> Result<()> {
-    if username.trim().is_empty() {
-        bail!("username must not be empty");
-    }
+    let username = normalize_identifier(
+        username,
+        100,
+        "username must not be empty",
+        "username must not exceed 100 characters",
+        Some("username may only contain printable characters"),
+        |ch| !ch.is_control(),
+    )
+    .map_err(|err| anyhow!("{:?}", err))?;
 
     let mut conn = pool.get().context("failed to get database connection")?;
     let exists: bool =
-        select(exists(users::table.filter(users::username.eq(username)))).get_result(&mut conn)?;
+        select(exists(users::table.filter(users::username.eq(&username)))).get_result(&mut conn)?;
     if exists {
         bail!("user '{}' already exists", username);
     }
 
     let new_user = NewUser {
         id: Uuid::new_v4(),
-        username: username.to_string(),
+        username: username.clone(),
     };
 
     diesel::insert_into(users::table)
@@ -228,8 +332,17 @@ fn delete_user(pool: &PgPool, username: &str) -> Result<()> {
         .optional()?
         .ok_or_else(|| anyhow!("user '{}' not found", username))?;
 
-    diesel::delete(user_memberships::table.filter(user_memberships::user_id.eq(user.id)))
-        .execute(&mut conn)?;
+    let has_memberships: bool = select(exists(
+        user_memberships::table.filter(user_memberships::user_id.eq(user.id)),
+    ))
+    .get_result(&mut conn)?;
+    if has_memberships {
+        bail!(
+            "user '{}' is still a member of one or more tenants; remove memberships first",
+            username
+        );
+    }
+
     diesel::delete(users::table.filter(users::id.eq(user.id))).execute(&mut conn)?;
 
     println!("deleted user '{}'", username);
@@ -268,7 +381,113 @@ fn create_tenant(
     Ok(())
 }
 
-fn delete_tenant(pool: &PgPool, tenant_id: Uuid) -> Result<()> {
+fn create_magic_token(
+    pool: &PgPool,
+    username: &str,
+    ttl_minutes: i64,
+    max_uses: Option<i32>,
+    kind: MagicTokenKind,
+) -> Result<()> {
+    let mut conn = pool.get().context("failed to get database connection")?;
+
+    let user: User = users::table
+        .filter(users::username.eq(username))
+        .first(&mut conn)
+        .with_context(|| format!("user '{}' not found", username))?;
+
+    let raw_token = generate_random_token();
+    let token_hash = hash_token(&raw_token);
+    let expires_at = Utc::now() + ChronoDuration::minutes(ttl_minutes);
+
+    let new_token = MagicToken {
+        id: Uuid::new_v4(),
+        user_id: user.id,
+        kind,
+        token_hash,
+        metadata: serde_json::json!({}),
+        expires_at: expires_at.naive_utc(),
+        max_uses,
+        used_count: 0,
+        created_at: Utc::now().naive_utc(),
+        created_by: None,
+        last_used_at: None,
+    };
+
+    diesel::insert_into(magic_tokens::table)
+        .values(&new_token)
+        .execute(&mut conn)?;
+
+    println!(
+        "Magic token created for '{}' (kind: {}, expires_at: {}, max_uses: {})",
+        username,
+        kind.as_str(),
+        expires_at,
+        max_uses.map_or("∞".to_string(), |v| v.to_string())
+    );
+    println!("Token: {}", raw_token);
+
+    Ok(())
+}
+
+fn generate_random_token() -> String {
+    let mut bytes = [0u8; 32];
+    OsRng
+        .try_fill_bytes(&mut bytes)
+        .expect("failed to read random bytes");
+    hex::encode(bytes)
+}
+
+fn hash_token(token: &str) -> String {
+    let mut hasher = Sha256::new();
+    hasher.update(token.as_bytes());
+    hex::encode(hasher.finalize())
+}
+
+fn delete_tenant(
+    config: &AppConfig,
+    pool: &PgPool,
+    tenant_id: Uuid,
+    tenant_name: &str,
+) -> Result<()> {
+    enqueue_delete_tenant_job_internal(config, pool, tenant_id, tenant_name, true, None)?;
+    println!(
+        "delete job enqueued; tenant '{}' will be permanently removed",
+        tenant_name
+    );
+    Ok(())
+}
+
+fn reset_tenant(
+    config: &AppConfig,
+    pool: &PgPool,
+    tenant_id: Uuid,
+    tenant_name: &str,
+    final_status: TenantFinalStatusArg,
+) -> Result<()> {
+    enqueue_delete_tenant_job_internal(
+        config,
+        pool,
+        tenant_id,
+        tenant_name,
+        false,
+        Some(final_status),
+    )?;
+    println!(
+        "reset job enqueued; tenant '{}' will be wiped and set to {}",
+        tenant_name,
+        final_status.as_str()
+    );
+    Ok(())
+}
+
+fn enqueue_delete_tenant_job_internal(
+    config: &AppConfig,
+    pool: &PgPool,
+    tenant_id: Uuid,
+    expected_name: &str,
+    remove_tenant: bool,
+    final_status: Option<TenantFinalStatusArg>,
+) -> Result<()> {
     let mut conn = pool.get().context("failed to get database connection")?;
 
     let tenant: Tenant = tenants::table
@@ -277,19 +496,100 @@ fn delete_tenant(pool: &PgPool, tenant_id: Uuid) -> Result<()> {
         .optional()?
         .ok_or_else(|| anyhow!("tenant '{}' not found", tenant_id))?;
 
-    let member_exists: bool = select(exists(
-        user_memberships::table.filter(user_memberships::tenant_id.eq(tenant.id)),
-    ))
-    .get_result(&mut conn)?;
-    if member_exists {
-        bail!("tenant '{}' still has user memberships", tenant.name);
+    apply_tenant_guc(&mut conn, tenant.id)
+        .map_err(|err| anyhow!("failed to set tenant context for {}: {err:?}", tenant.name))?;
+
+    if tenant.name != expected_name {
+        bail!(
+            "tenant name mismatch: expected '{}', database has '{}'",
+            expected_name,
+            tenant.name
+        );
     }
 
-    diesel::delete(tenants::table.filter(tenants::id.eq(tenant.id))).execute(&mut conn)?;
-    println!("deleted tenant '{}'", tenant.name);
+    diesel::update(tenants::table.find(tenant.id))
+        .set(tenants::status.eq(TenantStatus::Deleting))
+        .execute(&mut conn)?;
+
+    let nonce = generate_random_token();
+    let issued_at = Utc::now();
+    let issued_at_str = issued_at.to_rfc3339();
+    let action = if remove_tenant {
+        DeleteAction::Delete
+    } else {
+        DeleteAction::Reset
+    };
+    let resolved_final_status = if remove_tenant {
+        None
+    } else {
+        Some(
+            final_status
+                .unwrap_or(TenantFinalStatusArg::Suspended)
+                .as_str(),
+        )
+    };
+
+    let message = build_delete_proof_message(
+        tenant.id,
+        expected_name,
+        action,
+        &nonce,
+        &issued_at_str,
+        resolved_final_status,
+    );
+    let signature = sign_delete_proof(&config.jwt_secret, &message).map_err(|err| anyhow!(err))?;
+
+    let mut payload = serde_json::json!({
+        "remove_tenant": remove_tenant,
+        "tenant_name": tenant.name.clone(),
+        "action": action.as_str(),
+        "nonce": nonce,
+        "issued_at": issued_at_str,
+        "signature": signature,
+    });
+    if let Some(status) = resolved_final_status {
+        payload["final_status"] = serde_json::json!(status);
+    }
+
+    enqueue_job(&mut conn, tenant.id, JOB_DELETE_TENANT, payload, None)?;
+    let status_label = if remove_tenant {
+        "deleted"
+    } else {
+        final_status.map(|s| s.as_str()).unwrap_or("suspended")
+    };
+    println!(
+        "delete-tenant job enqueued for '{}' (remove_tenant={}, final_status={})",
+        tenant.name, remove_tenant, status_label
+    );
+
+    clear_tenant_context(&mut conn).map_err(|err| {
+        anyhow!(
+            "failed to clear tenant context for {}: {err:?}",
+            tenant.name
+        )
+    })?;
+
     Ok(())
 }
 
+fn enqueue_delete_tenant_job(
+    config: &AppConfig,
+    pool: &PgPool,
+    tenant_id: Uuid,
+    tenant_name: &str,
+    remove_tenant: bool,
+    final_status: Option<TenantFinalStatusArg>,
+) -> Result<()> {
+    enqueue_delete_tenant_job_internal(
+        config,
+        pool,
+        tenant_id,
+        tenant_name,
+        remove_tenant,
+        final_status,
+    )
+}
+
 fn add_user_to_tenant(pool: &PgPool, username: &str, tenant_id: Uuid) -> Result<()> {
     let mut conn = pool.get().context("failed to get database connection")?;
 
@@ -305,10 +605,15 @@ fn add_user_to_tenant(pool: &PgPool, username: &str, tenant_id: Uuid) -> Result<
         .optional()?
         .ok_or_else(|| anyhow!("tenant '{}' not found", tenant_id))?;
 
+    let owner_capability_set_id = ensure_capability_set(&mut conn, tenant.id, owner_capabilities())
+        .map_err(|err| anyhow!("failed to ensure owner capability set: {:?}", err))?
+        .id;
+
     let membership = NewUserMembership {
         id: Uuid::new_v4(),
         user_id: user.id,
         tenant_id: tenant.id,
+        capability_set_id: Some(owner_capability_set_id),
     };
 
     diesel::insert_into(user_memberships::table)
@@ -421,10 +726,10 @@ async fn delete_assets_for_tenant(
     config: &AppConfig,
     pool: &PgPool,
     tenant_id: Uuid,
+    asset_type: Option<&str>,
 ) -> Result<()> {
-    let s3_client = s3::build_client(config).await?;
-    let storage: Arc<dyn ObjectStorage> =
-        Arc::new(S3Storage::new(s3_client, config.s3_bucket.clone()));
+    let bucket = s3::build_bucket(config)?;
+    let storage: Arc<dyn ObjectStorage> = Arc::new(S3Storage::new(bucket));
 
     let mut conn = pool.get().context("failed to get database connection")?;
     let tenant: Tenant = tenants::table
@@ -433,57 +738,83 @@ async fn delete_assets_for_tenant(
         .optional()?
         .ok_or_else(|| anyhow!("tenant '{}' not found", tenant_id))?;
 
-    let tenant_storage = TenantStorage::new(Arc::clone(&storage), &tenant)
-        .with_context(|| format!("missing storage root for tenant {}", tenant.name))?;
+    apply_tenant_guc(&mut conn, tenant.id)
+        .map_err(|err| anyhow!("failed to set tenant context for {}: {err:?}", tenant.name))?;
 
-    let assets: Vec<DocumentAsset> = document_assets::table
-        .filter(document_assets::tenant_id.eq(tenant.id))
-        .load(&mut conn)
-        .with_context(|| format!("failed to load assets for tenant {}", tenant.name))?;
+    let result = async {
+        let tenant_storage = TenantStorage::new(Arc::clone(&storage), &tenant)
+            .with_context(|| format!("missing storage root for tenant {}", tenant.name))?;
 
-    if assets.is_empty() {
-        println!("Tenant {}: no assets", tenant.name);
-        return Ok(());
-    }
+        let mut asset_query = document_assets::table
+            .filter(document_assets::tenant_id.eq(tenant.id))
+            .into_boxed();
 
-    println!(
-        "Tenant {} ({}): deleting {} assets…",
-        tenant.name,
-        tenant.id,
-        assets.len()
-    );
-
-    let asset_ids: Vec<Uuid> = assets.iter().map(|asset| asset.id).collect();
-
-    let objects: Vec<DocumentAssetObject> = document_asset_objects::table
-        .filter(document_asset_objects::tenant_id.eq(tenant.id))
-        .filter(document_asset_objects::asset_id.eq_any(&asset_ids))
-        .load(&mut conn)
-        .with_context(|| format!("failed to load asset objects for tenant {}", tenant.name))?;
-
-    for object in &objects {
-        if let Err(err) = tenant_storage.delete_object(&object.s3_key).await {
-            eprintln!(
-                "Failed to delete object {} (tenant {}): {err}",
-                object.s3_key, tenant.name
-            );
+        if let Some(asset_type) = asset_type {
+            asset_query = asset_query.filter(document_assets::asset_type.eq(asset_type));
         }
-    }
 
-    diesel::delete(
-        document_asset_objects::table
-            .filter(document_asset_objects::tenant_id.eq(tenant.id))
-            .filter(document_asset_objects::asset_id.eq_any(&asset_ids)),
-    )
-    .execute(&mut conn)
-    .with_context(|| format!("failed to remove asset objects for tenant {}", tenant.name))?;
+        let assets: Vec<DocumentAsset> = asset_query
+            .load(&mut conn)
+            .with_context(|| format!("failed to load assets for tenant {}", tenant.name))?;
 
-    diesel::delete(document_assets::table.filter(document_assets::tenant_id.eq(tenant.id)))
+        if assets.is_empty() {
+            match asset_type {
+                Some(asset_type) => {
+                    println!("Tenant {}: no assets of type '{}'", tenant.name, asset_type)
+                }
+                None => println!("Tenant {}: no assets", tenant.name),
+            }
+            return Ok(());
+        }
+
+        match asset_type {
+            Some(asset_type) => println!(
+                "Tenant {} ({}): deleting {} '{}' assets…",
+                tenant.name,
+                tenant.id,
+                assets.len(),
+                asset_type
+            ),
+            None => println!(
+                "Tenant {} ({}): deleting {} assets…",
+                tenant.name,
+                tenant.id,
+                assets.len()
+            ),
+        }
+
+        let asset_ids: Vec<Uuid> = assets.iter().map(|asset| asset.id).collect();
+
+        for asset in &assets {
+            if let Err(err) = tenant_storage.delete_object(&asset.s3_key).await {
+                eprintln!(
+                    "Failed to delete object {} (tenant {}): {err}",
+                    asset.s3_key, tenant.name
+                );
+            }
+        }
+
+        diesel::delete(
+            document_assets::table
+                .filter(document_assets::tenant_id.eq(tenant.id))
+                .filter(document_assets::id.eq_any(&asset_ids)),
+        )
         .execute(&mut conn)
         .with_context(|| format!("failed to remove asset records for tenant {}", tenant.name))?;
 
-    println!("Tenant {}: asset records deleted.", tenant.name);
-    Ok(())
+        println!("Tenant {}: asset records deleted.", tenant.name);
+        Ok(())
+    }
+    .await;
+
+    clear_tenant_context(&mut conn).map_err(|err| {
+        anyhow!(
+            "failed to clear tenant context for {}: {err:?}",
+            tenant.name
+        )
+    })?;
+
+    result
 }
 
 async fn quickwit_index(

backend/src/bin/openapi_dump.rs

@@ -1,4 +1,4 @@
-use backend::openapi::ApiDoc;
+use papercrate::openapi::ApiDoc;
 use utoipa::OpenApi;
 
 fn main() {

backend/src/bin/webdav.rs

@@ -3,7 +3,7 @@ use std::net::SocketAddr;
 use tokio::net::TcpListener;
 use tower::make::Shared;
 
-use backend::{routes::webdav, utils::bootstrap::init_component};
+use papercrate::{routes::webdav, utils::bootstrap::init_component};
 
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {

backend/src/bin/worker.rs

@@ -2,7 +2,7 @@ use std::time::Duration;
 
 use tokio::signal;
 
-use backend::{default_handlers, utils::bootstrap::init_component, Worker};
+use papercrate::{default_handlers, utils::bootstrap::init_component, Worker};
 
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {

backend/src/config.rs

@@ -1,6 +1,7 @@
 use anyhow::{Context, Result};
 use url::Url;
 
+use serde::de::Deserializer;
 use serde::Deserialize;
 use serde_aux::field_attributes::deserialize_bool_from_anything;
 
@@ -9,6 +10,8 @@ use crate::db::DEFAULT_MAX_POOL_SIZE;
 #[derive(Clone, Debug, Deserialize)]
 pub struct AppConfig {
     pub database_url: String,
+    #[serde(default)]
+    pub migrations_database_url: Option<String>,
     #[serde(default = "default_database_max_pool_size")]
     pub database_max_pool_size: u32,
     #[serde(default = "default_server_host")]
@@ -41,6 +44,8 @@ pub struct AppConfig {
     pub refresh_cookie_domain: Option<String>,
     #[serde(default)]
     pub cors_allowed_origin: Option<String>,
+    #[serde(default, deserialize_with = "deserialize_bool_from_anything")]
+    pub proxy_downloads: bool,
     #[serde(default)]
     pub aws_endpoint_url: Option<String>,
     #[serde(default)]
@@ -58,6 +63,16 @@ pub struct AppConfig {
     pub worker_max_document_bytes: u64,
     #[serde(default = "default_upload_body_limit_bytes")]
     pub upload_body_limit_bytes: u64,
+    #[serde(default = "default_service_timezone")]
+    pub service_timezone: String,
+    #[serde(default = "default_issued_at_date_order")]
+    pub issued_at_date_order: String,
+    #[serde(default)]
+    pub issued_at_filename_date_order: Option<String>,
+    #[serde(default, deserialize_with = "deserialize_string_list")]
+    pub issued_at_date_parser_locales: Vec<String>,
+    #[serde(default, deserialize_with = "deserialize_string_list")]
+    pub issued_at_ignore_dates: Vec<String>,
     #[serde(default)]
     pub webauthn_rp_id: Option<String>,
     #[serde(default)]
@@ -73,12 +88,14 @@ impl AppConfig {
         tracing::info!(
             component,
             database_url = %config.redacted_database_url(),
+            migrations_database_url = %config.redacted_migrations_database_url(),
             pool_size = config.database_max_pool_size,
             quickwit_enabled = config.quickwit_endpoint.is_some(),
             passkeys_enabled = config.webauthn_origin.is_some(),
             s3_bucket = %config.s3_bucket,
             worker_max_document_bytes = config.worker_max_document_bytes,
             upload_body_limit_bytes = config.upload_body_limit_bytes,
+            proxy_downloads = config.proxy_downloads,
             "loaded backend configuration"
         );
         Ok(config)
@@ -93,6 +110,18 @@ impl AppConfig {
     pub fn redacted_database_url(&self) -> String {
         redact_database_url(&self.database_url)
     }
+
+    pub fn redacted_migrations_database_url(&self) -> String {
+        redact_database_url(self.migrations_database_url())
+    }
+
+    pub fn migrations_database_url(&self) -> &str {
+        if let Some(ref url) = self.migrations_database_url {
+            url
+        } else {
+            &self.database_url
+        }
+    }
 }
 
 impl AppConfig {
@@ -180,11 +209,57 @@ fn default_upload_body_limit_bytes() -> u64 {
     128 * 1024 * 1024
 }
 
+fn default_service_timezone() -> String {
+    "UTC".to_string()
+}
+
+fn default_issued_at_date_order() -> String {
+    "DMY".to_string()
+}
+
+fn deserialize_string_list<'de, D>(deserializer: D) -> Result<Vec<String>, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    #[derive(Deserialize)]
+    #[serde(untagged)]
+    enum Helper {
+        List(Vec<String>),
+        Single(String),
+    }
+
+    let helper = Option::<Helper>::deserialize(deserializer)?;
+    let mut values = Vec::new();
+
+    if let Some(helper) = helper {
+        match helper {
+            Helper::List(list) => {
+                for entry in list {
+                    let trimmed = entry.trim();
+                    if !trimmed.is_empty() {
+                        values.push(trimmed.to_string());
+                    }
+                }
+            }
+            Helper::Single(value) => {
+                for part in value.split(',') {
+                    let trimmed = part.trim();
+                    if !trimmed.is_empty() {
+                        values.push(trimmed.to_string());
+                    }
+                }
+            }
+        }
+    }
+
+    Ok(values)
+}
+
 fn default_webauthn_rp_name() -> String {
     "Papercrate".to_string()
 }
 
-fn redact_database_url(raw: &str) -> String {
+pub fn redact_database_url(raw: &str) -> String {
     match Url::parse(raw) {
         Ok(mut parsed) => {
             if parsed.password().is_some() {

backend/src/db.rs

@@ -1,12 +1,40 @@
 use std::time::Duration;
 
 use diesel::pg::PgConnection;
-use diesel::r2d2::{ConnectionManager, Pool};
+use diesel::r2d2::{ConnectionManager, CustomizeConnection, Pool};
+use diesel::RunQueryDsl;
 
 pub type PgPool = Pool<ConnectionManager<PgConnection>>;
 
 pub const DEFAULT_MAX_POOL_SIZE: u32 = 2;
 
+#[derive(Debug)]
+struct SchemaCustomizer;
+
+impl CustomizeConnection<PgConnection, diesel::r2d2::Error> for SchemaCustomizer {
+    fn on_acquire(&self, conn: &mut PgConnection) -> Result<(), diesel::r2d2::Error> {
+        diesel::sql_query(
+            "SELECT set_config('search_path', (
+                SELECT string_agg(schema_name, ', ')
+                FROM (
+                    SELECT 'tenant' AS schema_name WHERE EXISTS (
+                        SELECT 1 FROM pg_namespace WHERE nspname = 'tenant'
+                    )
+                    UNION ALL
+                    SELECT 'shared' AS schema_name WHERE EXISTS (
+                        SELECT 1 FROM pg_namespace WHERE nspname = 'shared'
+                    )
+                    UNION ALL
+                    SELECT 'public' AS schema_name
+                ) AS schemas
+            ), false)",
+        )
+        .execute(conn)
+        .map(|_| ())
+        .map_err(diesel::r2d2::Error::QueryError)
+    }
+}
+
 pub fn init_pool(database_url: &str) -> anyhow::Result<PgPool> {
     init_pool_with_size(database_url, DEFAULT_MAX_POOL_SIZE)
 }
@@ -17,6 +45,7 @@ pub fn init_pool_with_size(database_url: &str, max_size: u32) -> anyhow::Result<
     let pool = Pool::builder()
         .max_size(pool_size)
         .connection_timeout(Duration::from_secs(10))
+        .connection_customizer(Box::new(SchemaCustomizer))
         .build(manager)?;
     Ok(pool)
 }

backend/src/documents/asset.rs

@@ -1,6 +1,7 @@
 use std::collections::HashMap;
 use std::path::Path as FsPath;
 
+use chrono::{Duration as ChronoDuration, Utc};
 use diesel::prelude::*;
 use serde::Serialize;
 use serde_json::Value;
@@ -8,30 +9,27 @@ use utoipa::ToSchema;
 use uuid::Uuid;
 
 use crate::error::{AppError, AppResult};
-use crate::models::{Document, DocumentAsset, DocumentAssetObject, DocumentVersion};
-use crate::schema::{document_asset_objects, document_assets, document_versions};
-use crate::state::AppState;
-use crate::utils::time::to_iso;
+use crate::models::{Document, DocumentAsset, DocumentVersion};
+use crate::schema::{document_assets, document_versions};
+use crate::state::{AppState, PgPooledConnection};
+use crate::utils::{http::inline_content_disposition, time::to_iso};
+
+#[derive(Serialize, Clone, ToSchema)]
+pub struct DownloadLink {
+    pub url: String,
+    pub expires_at: i64,
+}
 
 #[derive(Serialize, Clone, ToSchema)]
 pub struct DocumentAssetResponse {
     pub id: Uuid,
     pub asset_type: String,
     pub mime_type: String,
+    #[schema(value_type = Object)]
     pub metadata: Value,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub cardinality: Option<i32>,
-}
-
-#[derive(Serialize, Clone, ToSchema)]
-pub struct DocumentAssetObjectResponse {
-    pub id: Uuid,
-    pub ordinal: i32,
-    pub metadata: Value,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub url: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub expires_at: Option<i64>,
+    #[schema(nullable)]
+    pub download: Option<DownloadLink>,
 }
 
 #[derive(Serialize, ToSchema)]
@@ -39,12 +37,12 @@ pub struct DocumentAssetDetailResponse {
     pub id: Uuid,
     pub asset_type: String,
     pub mime_type: String,
+    #[schema(value_type = Object)]
     pub metadata: Value,
     pub created_at: String,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub cardinality: Option<i32>,
-    #[serde(default, skip_serializing_if = "Vec::is_empty")]
-    pub objects: Vec<DocumentAssetObjectResponse>,
+    #[schema(nullable)]
+    pub download: Option<DownloadLink>,
 }
 
 #[derive(Serialize, Clone, ToSchema)]
@@ -54,6 +52,7 @@ pub struct DocumentVersionResponse {
     pub size_bytes: i64,
     pub checksum: String,
     pub created_at: String,
+    #[schema(value_type = Object)]
     pub metadata: Value,
 }
 
@@ -63,22 +62,35 @@ pub struct DocumentVersionDetailResponse {
     pub version: DocumentVersionResponse,
     #[serde(default, skip_serializing_if = "Vec::is_empty")]
     pub assets: Vec<DocumentAssetResponse>,
-    pub download_path: String,
+    pub download: DownloadLink,
 }
 
-pub fn build_download_path(
+pub fn build_download_link(
     state: &AppState,
     document: &Document,
+    version_id: Uuid,
     user_id: Uuid,
-) -> AppResult<String> {
+) -> AppResult<DownloadLink> {
     state
         .jwt
-        .generate_download_token(document.id, user_id, document.tenant_id)
-        .map(|token| format!("/download/{token}"))
+        .generate_download_token(document.id, version_id, user_id, document.tenant_id)
         .map_err(|err| {
             tracing::error!(error = ?err, "failed to generate download token");
             AppError::internal("failed to generate download token")
         })
+        .and_then(|token| {
+            let expires_at = Utc::now()
+                .checked_add_signed(ChronoDuration::minutes(
+                    state.config.download_token_expiry_minutes,
+                ))
+                .ok_or_else(|| AppError::internal("failed to compute download expiry"))?
+                .timestamp_millis();
+
+            Ok(DownloadLink {
+                url: format!("/api/download/{token}"),
+                expires_at,
+            })
+        })
 }
 
 pub fn to_version_response(version: DocumentVersion) -> DocumentVersionResponse {
@@ -98,13 +110,13 @@ pub fn to_asset_summary(asset: DocumentAsset) -> DocumentAssetResponse {
         asset_type: asset.asset_type,
         mime_type: asset.mime_type,
         metadata: asset.metadata,
-        cardinality: asset.cardinality,
+        download: None,
     }
 }
 
 pub fn to_asset_detail_response(
     asset: DocumentAsset,
-    objects: Vec<DocumentAssetObjectResponse>,
+    download: Option<DownloadLink>,
 ) -> DocumentAssetDetailResponse {
     DocumentAssetDetailResponse {
         id: asset.id,
@@ -112,69 +124,46 @@ pub fn to_asset_detail_response(
         mime_type: asset.mime_type,
         metadata: asset.metadata,
         created_at: to_iso(asset.created_at),
-        cardinality: asset.cardinality,
-        objects,
+        download,
     }
 }
 
-pub fn to_asset_object_response(
-    object: DocumentAssetObject,
-    url: Option<String>,
-    expires_at: Option<i64>,
-) -> DocumentAssetObjectResponse {
-    DocumentAssetObjectResponse {
-        id: object.id,
-        ordinal: object.ordinal,
-        metadata: object.metadata,
-        url,
-        expires_at,
-    }
+pub fn asset_disposition(asset: &DocumentAsset) -> Option<String> {
+    let filename = asset.asset_type.clone();
+    inline_content_disposition(&filename)
 }
 
-pub fn delete_asset(state: &AppState, tenant_id: Uuid, asset_id: Uuid) -> AppResult<()> {
-    let mut conn = state.db_for_tenant(tenant_id)?;
-
+pub fn delete_asset(
+    conn: &mut PgPooledConnection,
+    tenant_id: Uuid,
+    asset_id: Uuid,
+) -> AppResult<()> {
     diesel::delete(
         document_assets::table
             .filter(document_assets::id.eq(asset_id))
             .filter(document_assets::tenant_id.eq(tenant_id)),
     )
-    .execute(&mut conn)?;
+    .execute(conn)?;
 
     Ok(())
 }
 
-pub async fn load_asset_responses(
-    state: &AppState,
+pub fn load_asset_responses_with_conn(
+    conn: &mut PgPooledConnection,
     tenant_id: Uuid,
     version_id: Uuid,
 ) -> AppResult<Vec<DocumentAssetResponse>> {
-    let mut conn = state.db_for_tenant(tenant_id)?;
-    let assets: Vec<(DocumentAsset, Option<DocumentAssetObject>)> = document_assets::table
-        .left_outer_join(
-            document_asset_objects::table.on(document_asset_objects::asset_id
-                .eq(document_assets::id)
-                .and(document_asset_objects::ordinal.eq(1))),
-        )
+    let assets: Vec<DocumentAsset> = document_assets::table
         .filter(document_assets::document_version_id.eq(version_id))
         .filter(document_assets::tenant_id.eq(tenant_id))
         .order(document_assets::created_at.asc())
-        .select((
-            document_assets::all_columns,
-            document_asset_objects::all_columns.nullable(),
-        ))
-        .load(&mut conn)?;
-    drop(conn);
+        .load(conn)?;
 
-    Ok(assets
-        .into_iter()
-        .map(|(asset, _)| to_asset_summary(asset))
-        .collect())
+    Ok(assets.into_iter().map(to_asset_summary).collect())
 }
 
 pub fn load_primary_assets(
-    state: &AppState,
-    tenant_id: Uuid,
+    conn: &mut PgPooledConnection,
     documents: &[Document],
 ) -> AppResult<HashMap<Uuid, (DocumentVersionResponse, Vec<DocumentAssetResponse>)>> {
     if documents.is_empty() {
@@ -191,37 +180,25 @@ pub fn load_primary_assets(
     version_ids.sort();
     version_ids.dedup();
 
-    let mut conn = state.db_for_tenant(tenant_id)?;
     let versions: Vec<DocumentVersion> = document_versions::table
         .filter(document_versions::id.eq_any(&version_ids))
-        .load(&mut conn)?;
+        .load(conn)?;
 
     let mut version_map: HashMap<Uuid, DocumentVersion> = HashMap::new();
     for version in versions {
         version_map.insert(version.id, version);
     }
 
-    let assets: Vec<(DocumentAsset, Option<DocumentAssetObject>)> = document_assets::table
-        .left_outer_join(
-            document_asset_objects::table.on(document_asset_objects::asset_id
-                .eq(document_assets::id)
-                .and(document_asset_objects::ordinal.eq(1))),
-        )
+    let assets: Vec<DocumentAsset> = document_assets::table
         .filter(document_assets::document_version_id.eq_any(&version_ids))
         .order((
             document_assets::document_version_id.asc(),
             document_assets::created_at.asc(),
         ))
-        .select((
-            document_assets::all_columns,
-            document_asset_objects::all_columns.nullable(),
-        ))
-        .load(&mut conn)?;
-
-    drop(conn);
+        .load(conn)?;
 
     let mut assets_by_version: HashMap<Uuid, Vec<DocumentAssetResponse>> = HashMap::new();
-    for (asset, _object) in assets {
+    for asset in assets {
         let version_id = asset.document_version_id;
         let response = to_asset_summary(asset);
         assets_by_version

backend/src/documents/correspondents.rs

@@ -16,6 +16,7 @@ use crate::utils::time::to_iso;
 pub struct DocumentCorrespondentResponse {
     pub id: Uuid,
     pub name: String,
+    #[schema(value_type = Object)]
     pub metadata: Value,
     pub assigned_at: String,
 }

backend/src/documents/mod.rs

@@ -2,5 +2,9 @@ pub mod asset;
 pub mod correspondents;
 pub mod folders;
 pub mod metadata;
+pub mod ordering;
+pub mod relations;
 pub mod search;
 pub mod tags;
+
+pub use ordering::{DocumentSortField, SortDirection};

backend/src/documents/ordering.rs

@@ -0,0 +1,58 @@
+use serde::{Deserialize, Serialize};
+use utoipa::ToSchema;
+
+pub const UNICODE_COLLATION_NAME: &str = "unicode_ci";
+pub const UNICODE_COLLATION_LOCALE: &str = "und-u-ks-level2";
+
+const TITLE_ASC: &str = "title COLLATE \"unicode_ci\" ASC";
+const TITLE_DESC: &str = "title COLLATE \"unicode_ci\" DESC";
+const ISSUED_AT_ASC: &str = "issued_at ASC NULLS LAST";
+const ISSUED_AT_DESC: &str = "issued_at DESC NULLS LAST";
+const CREATED_AT_ASC: &str = "created_at ASC";
+const CREATED_AT_DESC: &str = "created_at DESC";
+const UPDATED_AT_ASC: &str = "updated_at ASC";
+const UPDATED_AT_DESC: &str = "updated_at DESC";
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Deserialize, Serialize, ToSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum DocumentSortField {
+    Title,
+    IssuedAt,
+    CreatedAt,
+    UpdatedAt,
+}
+
+impl Default for DocumentSortField {
+    fn default() -> Self {
+        DocumentSortField::Title
+    }
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Deserialize, Serialize, ToSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum SortDirection {
+    Asc,
+    Desc,
+}
+
+impl Default for SortDirection {
+    fn default() -> Self {
+        SortDirection::Asc
+    }
+}
+
+pub fn ordering_clauses(
+    field: DocumentSortField,
+    direction: SortDirection,
+) -> (&'static str, Option<&'static str>) {
+    match (field, direction) {
+        (DocumentSortField::Title, SortDirection::Asc) => (TITLE_ASC, None),
+        (DocumentSortField::Title, SortDirection::Desc) => (TITLE_DESC, None),
+        (DocumentSortField::IssuedAt, SortDirection::Asc) => (ISSUED_AT_ASC, Some(TITLE_ASC)),
+        (DocumentSortField::IssuedAt, SortDirection::Desc) => (ISSUED_AT_DESC, Some(TITLE_ASC)),
+        (DocumentSortField::CreatedAt, SortDirection::Asc) => (CREATED_AT_ASC, Some(TITLE_ASC)),
+        (DocumentSortField::CreatedAt, SortDirection::Desc) => (CREATED_AT_DESC, Some(TITLE_ASC)),
+        (DocumentSortField::UpdatedAt, SortDirection::Asc) => (UPDATED_AT_ASC, Some(TITLE_ASC)),
+        (DocumentSortField::UpdatedAt, SortDirection::Desc) => (UPDATED_AT_DESC, Some(TITLE_ASC)),
+    }
+}

backend/src/documents/relations.rs

@@ -0,0 +1,33 @@
+use std::collections::HashMap;
+
+use uuid::Uuid;
+
+use crate::documents::correspondents::{
+    load_correspondents_for_documents, DocumentCorrespondentResponse,
+};
+use crate::documents::tags::load_tags_for_documents;
+use crate::error::AppResult;
+use crate::models::Tag;
+use crate::state::PgPooledConnection;
+
+/// Loads tags and correspondents for the provided documents in a single pass.
+pub fn load_tags_and_correspondents(
+    conn: &mut PgPooledConnection,
+    document_ids: &[Uuid],
+) -> AppResult<HashMap<Uuid, (Vec<Tag>, Vec<DocumentCorrespondentResponse>)>> {
+    if document_ids.is_empty() {
+        return Ok(HashMap::new());
+    }
+
+    let tags_map = load_tags_for_documents(conn, document_ids)?;
+    let mut correspondents_map = load_correspondents_for_documents(conn, document_ids)?;
+
+    let mut result = HashMap::with_capacity(document_ids.len());
+    for id in document_ids {
+        let tags = tags_map.get(id).cloned().unwrap_or_default();
+        let correspondents = correspondents_map.remove(id).unwrap_or_default();
+        result.insert(*id, (tags, correspondents));
+    }
+
+    Ok(result)
+}

backend/src/documents/search.rs

@@ -163,6 +163,20 @@ pub async fn ensure_quickwit_index(client: &Client, endpoint: &str, index_id: &s
     }
 }
 
+pub async fn delete_quickwit_index(client: &Client, endpoint: &str, index_id: &str) -> Result<()> {
+    let base = endpoint.trim_end_matches('/');
+    let url = format!("{}/api/v1/indexes/{}", base, index_id);
+    let response = client.delete(&url).send().await?;
+    match response.status() {
+        status if status.is_success() => Ok(()),
+        StatusCode::NOT_FOUND => Ok(()),
+        status => {
+            let body = response.text().await.unwrap_or_default();
+            bail!("quickwit delete index failed with status {status}: {body}");
+        }
+    }
+}
+
 pub fn extract_document_id(hit: &Value) -> Option<Uuid> {
     for key in ["_source", "source", "fields", "stored_fields"] {
         if let Some(value) = hit.get(key) {

backend/src/error.rs

@@ -4,7 +4,9 @@ use axum::{
     Json,
 };
 use serde::Serialize;
-use std::fmt::Display;
+use serde_json::Value;
+use std::fmt::{self, Display};
+use utoipa::ToSchema;
 
 pub type AppResult<T> = Result<T, AppError>;
 
@@ -13,6 +15,7 @@ pub struct AppError {
     status: StatusCode,
     message: String,
     code: Option<String>,
+    details: Option<Value>,
 }
 
 impl AppError {
@@ -21,6 +24,7 @@ impl AppError {
             status,
             message: message.into(),
             code: None,
+            details: None,
         }
     }
 
@@ -36,6 +40,10 @@ impl AppError {
         Self::new(StatusCode::UNAUTHORIZED, "unauthorized")
     }
 
+    pub fn forbidden(message: impl Into<String>) -> Self {
+        Self::new(StatusCode::FORBIDDEN, message)
+    }
+
     pub fn not_found() -> Self {
         Self::new(StatusCode::NOT_FOUND, "resource not found")
     }
@@ -48,24 +56,38 @@ impl AppError {
         self.code = Some(code.into());
         self
     }
+
+    pub fn with_details(mut self, details: Value) -> Self {
+        self.details = Some(details);
+        self
+    }
+}
+
+impl fmt::Display for AppError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}: {}", self.status, self.message)
+    }
 }
 
 impl IntoResponse for AppError {
     fn into_response(self) -> Response {
         let status = self.status;
-        let body = Json(ErrorResponse {
+        let body = Json(ApiErrorResponse {
             error: self.message,
             code: self.code,
+            details: self.details,
         });
         (status, body).into_response()
     }
 }
 
-#[derive(Serialize)]
-struct ErrorResponse {
+#[derive(Serialize, ToSchema)]
+pub struct ApiErrorResponse {
     error: String,
     #[serde(skip_serializing_if = "Option::is_none")]
     code: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    details: Option<Value>,
 }
 
 impl From<diesel::result::Error> for AppError {
@@ -73,8 +95,9 @@ impl From<diesel::result::Error> for AppError {
         match value {
             diesel::result::Error::NotFound => AppError::not_found(),
             other => {
-                tracing::error!(error = ?other, "database operation failed");
-                AppError::internal("database operation failed")
+                let message = format!("database operation failed: {other}");
+                tracing::error!(error = ?other, message);
+                AppError::internal(message)
             }
         }
     }

backend/src/http/mod.rs

@@ -0,0 +1 @@
+pub mod responders;

backend/src/http/responders.rs

@@ -0,0 +1,157 @@
+use axum::{
+    http::StatusCode,
+    response::{IntoResponse, Response},
+    Json,
+};
+use serde::Serialize;
+
+use crate::error::{AppError, AppResult};
+
+/// Helper trait to convert error-centric results into the application's error type.
+pub trait IntoAppResult<T> {
+    fn into_app_result(self) -> AppResult<T>;
+}
+
+impl<T, E> IntoAppResult<T> for Result<T, E>
+where
+    AppError: From<E>,
+{
+    fn into_app_result(self) -> AppResult<T> {
+        self.map_err(AppError::from)
+    }
+}
+
+/// Extension helpers for optional values to map them into `AppResult`.
+pub trait OptionAppResultExt<T> {
+    fn or_not_found(self) -> AppResult<T>;
+    fn or_bad_request(self, message: impl Into<String>) -> AppResult<T>;
+}
+
+impl<T> OptionAppResultExt<T> for Option<T> {
+    fn or_not_found(self) -> AppResult<T> {
+        self.ok_or_else(AppError::not_found)
+    }
+
+    fn or_bad_request(self, message: impl Into<String>) -> AppResult<T> {
+        self.ok_or_else(|| AppError::bad_request(message))
+    }
+}
+
+/// Provides helpers for statements returning number of affected rows.
+pub trait RowsAffectedExt: Sized {
+    fn or_error(self, error: AppError) -> AppResult<usize>;
+    fn or_not_found(self) -> AppResult<usize> {
+        self.or_error(AppError::not_found())
+    }
+}
+
+impl RowsAffectedExt for usize {
+    fn or_error(self, error: AppError) -> AppResult<usize> {
+        if self == 0 {
+            Err(error)
+        } else {
+            Ok(self)
+        }
+    }
+}
+
+/// Wrapper providing a consistent JSON response with a status code.
+pub struct JsonResponse<T> {
+    status: StatusCode,
+    payload: T,
+}
+
+impl<T> JsonResponse<T> {
+    pub fn new(status: StatusCode, payload: T) -> Self {
+        Self { status, payload }
+    }
+
+    pub fn ok(payload: T) -> Self {
+        Self::new(StatusCode::OK, payload)
+    }
+
+    pub fn created(payload: T) -> Self {
+        Self::new(StatusCode::CREATED, payload)
+    }
+
+    pub fn accepted(payload: T) -> Self {
+        Self::new(StatusCode::ACCEPTED, payload)
+    }
+
+    pub fn into_inner(self) -> T {
+        self.payload
+    }
+
+    pub fn as_inner(&self) -> &T {
+        &self.payload
+    }
+}
+
+impl<T> From<T> for JsonResponse<T> {
+    fn from(value: T) -> Self {
+        Self::ok(value)
+    }
+}
+
+impl<T> IntoResponse for JsonResponse<T>
+where
+    T: Serialize,
+{
+    fn into_response(self) -> Response {
+        (self.status, Json(self.payload)).into_response()
+    }
+}
+
+/// Helper for returning empty responses with a status code.
+pub fn empty(status: StatusCode) -> AppResult<StatusCode> {
+    Ok(status)
+}
+
+/// Helper for returning `204 No Content`.
+pub fn no_content() -> AppResult<StatusCode> {
+    empty(StatusCode::NO_CONTENT)
+}
+
+/// Helper for returning JSON payloads with `200 OK`.
+pub fn ok_json<T>(value: T) -> AppResult<JsonResponse<T>>
+where
+    T: Serialize,
+{
+    Ok(JsonResponse::ok(value))
+}
+
+/// Helper for returning JSON payloads with `201 Created`.
+pub fn created_json<T>(value: T) -> AppResult<JsonResponse<T>>
+where
+    T: Serialize,
+{
+    Ok(JsonResponse::created(value))
+}
+
+/// Helper for returning JSON payloads with `202 Accepted`.
+pub fn accepted_json<T>(value: T) -> AppResult<JsonResponse<T>>
+where
+    T: Serialize,
+{
+    Ok(JsonResponse::accepted(value))
+}
+
+/// Standard wrapper for paginated responses.
+#[derive(Serialize)]
+pub struct PaginatedResponse<T, M>
+where
+    T: Serialize,
+    M: Serialize,
+{
+    pub data: T,
+    pub meta: M,
+}
+
+pub fn paginated_json<T, M>(data: T, meta: M) -> AppResult<JsonResponse<PaginatedResponse<T, M>>>
+where
+    T: Serialize,
+    M: Serialize,
+{
+    let payload = PaginatedResponse { data, meta };
+    Ok(JsonResponse::ok(payload))
+}