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`

docker-compose.dev.yml

@@ -1,3 +1,17 @@
+x-backend-env: &backend-env
+  DATABASE_URL: postgres://papercrate:papercrate_dev@postgres:5432/papercrate
+  DATABASE_MAX_POOL_SIZE: 2
+  AWS_ENDPOINT_URL: http://minio:9000
+  AWS_ACCESS_KEY_ID: minioadmin
+  AWS_SECRET_ACCESS_KEY: minioadmin
+  AWS_REGION: us-east-1
+  S3_BUCKET: documents
+  PROXY_DOWNLOADS: "true"
+  JWT_SECRET: change-me-super-secret
+  QUICKWIT_ENDPOINT: http://quickwit:7280
+  WEBAUTHN_RP_ID: localhost
+  WEBAUTHN_ORIGIN: http://localhost:5173
+
 services:
   postgres:
     image: postgres:16-alpine
@@ -62,32 +76,49 @@ services:
       timeout: 5s
       retries: 5
 
-  admin-bootstrap:
+  server:
     build:
       context: ./backend
+      dockerfile: Dockerfile
+      target: development
+      network: host
+    volumes:
+      - ./backend:/app
+    environment:
+      <<: *backend-env
+      RUST_LOG: info
+      SERVER_HOST: 0.0.0.0
+      SERVER_PORT: 3000
+    ports:
+      - "3000:3000"
+      - "3001:3001"
     depends_on:
       postgres:
         condition: service_healthy
+      minio:
+        condition: service_healthy
       quickwit:
         condition: service_healthy
+      createbuckets:
+        condition: service_completed_successfully
+
+  frontend:
+    build:
+      context: ./frontend
+      dockerfile: Dockerfile
+      target: development
+      network: host
+    volumes:
+      - ./frontend:/app
+      - /app/node_modules
+      - /app/dist
+    ports:
+      - "5173:5173"
     environment:
-      DATABASE_URL: postgres://papercrate:papercrate_dev@postgres:5432/papercrate
-      DATABASE_MAX_POOL_SIZE: 2
-      AWS_ENDPOINT_URL: http://minio:9000
-      AWS_ACCESS_KEY_ID: minioadmin
-      AWS_SECRET_ACCESS_KEY: minioadmin
-      AWS_REGION: us-east-1
-      S3_BUCKET: documents
-      JWT_SECRET: change-me-super-secret
-      QUICKWIT_ENDPOINT: http://quickwit:7280
-    entrypoint: []
-    command: >
-      /bin/sh -c "
-        echo 'Running database migrations' &&
-        diesel migration run
-      "
-    user: root
-    restart: "no"
+      API_PROXY_PASS: http://server:3000
+    depends_on:
+      server:
+        condition: service_started
 
 volumes:
   postgres_data: