- Bug 1: No fix needed - frontend already uses PUT for document updates
- Bug 2: Changed folders API to use 'project' param (matches documents)
- Bug 3: GET /folders now works without project filter (lists all folders)
Changes:
- folders.js: Accept 'project' instead of 'projectId', make it optional
- folderService.js: Support listing all folders when projectId is null
- api.js: Updated getFolders() to use 'project' param consistently
- Add projectService.js with full CRUD + tree operations
- Add folderService.js with hierarchical folder support
- Add projects.js routes: GET/POST/PUT/DELETE /projects, /projects/:id/tree, /projects/:id/documents
- Add folders.js routes: GET/POST/PUT/DELETE /folders, /folders/:id/tree, /folders/:id/documents
- Update documentService.js to support projectId/folderId with backwards compat (libraryId)
- Update routes/index.js to mount new routers
- Maintain backwards compatibility with legacy libraryId
- All endpoints tested and working
