Papercrate REST API
===================

Unless noted otherwise, endpoints below require a valid `Authorization: Bearer <token>` header.

Authentication
--------------
- POST /api/auth/login - Exchange username/password for an access token and refresh cookie (public).
- POST /api/auth/refresh - Rotate the refresh cookie and return a new access token (public, requires refresh cookie).
- POST /api/auth/logout - Revoke the caller's refresh tokens and clear the cookie.
- GET  /api/auth/me - Return the authenticated principal payload.

Health
------
- GET  /api/health - Lightweight liveness probe (no authentication required).

Documents
---------
- GET  /api/documents - List documents, optionally filtered by `folder_id` and `include_deleted`.
- POST /api/documents - Upload a document via multipart form-data (`file`, optional metadata/folder fields).
- POST /api/documents/reanalyze - Queue re-analysis for every non-deleted document.
- POST /api/documents/bulk/move - Move multiple documents to a target folder.
- POST /api/documents/bulk/tags - Add or remove tags across multiple documents.
- POST /api/documents/bulk/reanalyze - Queue re-analysis jobs for selected documents.
- GET  /api/documents/:id - Retrieve metadata and current version details for a document.
- PATCH /api/documents/:id - Update document metadata (currently title).
- DELETE /api/documents/:id - Soft-delete a document.
- GET  /api/documents/:id/download - Create a pre-signed download URL for the current version.
- PATCH /api/documents/:id/folder - Move a document to another folder.
- POST /api/documents/:id/tags - Assign one or more tags to a document.
- DELETE /api/documents/:id/tags/:tag_id - Remove a single tag from a document.

Document Assets
---------------
- GET  /api/documents/:id/assets - List generated assets for the current version.
- POST /api/documents/:id/assets - Request (re)generation of document assets; accepts optional `force` query flag.
- GET  /api/documents/:id/assets/:asset_id - Fetch metadata and a pre-signed URL for a specific asset.

Downloads
---------
- GET  /download/:token - Follow a one-time download token; redirects to a pre-signed URL (public token required).

Folders
-------
- POST /api/folders - Create a folder (optionally under a parent).
- POST /api/folders/path - Ensure a nested folder path exists, creating missing segments.
- GET  /api/folders/:id/contents - List subfolders and documents inside a folder; use `root` for the workspace root.
- GET  /api/folders/:id/documents - Search within a folder tree with optional `query` and `tags` filters.
- DELETE /api/folders/:id - Soft-delete a folder.
- PATCH /api/folders/:id - Change a folder's parent.

Tags
----
- GET  /api/tags - List all tags with usage counts.
- POST /api/tags - Create a new tag.
- PATCH /api/tags/:id - Update a tag's label or color.