---
context: phase
phase: 04-folders-sharing-quotas-document-ux
task: null
total_tasks: null
status: paused
last_updated: 2026-05-28T15:02:40Z
---

# BLOCKING CONSTRAINTS — Read Before Anything Else

_No blocking constraints identified this session._

## Critical Anti-Patterns

| Pattern | Description | Severity | Prevention Mechanism |
|---------|-------------|----------|---------------------|
| UniqueConstraint + NULL parent | SQL UNIQUE constraints do not fire when a nullable column is NULL — duplicate root folder names were allowed | advisory | Always add explicit ORM duplicate check before insert/rename for nullable-column uniqueness |
| Raw SQL UUID format in SQLite | SQLite stores UUID as 32-char hex (no dashes); `str(uuid)` gives 36-char string with dashes — raw SQL WHERE comparisons silently fail | advisory | Use `uuid.hex` in raw SQL parameters; SQLAlchemy ORM handles this automatically |

<current_state>
Phase 4 plans 04-01 through 04-09 are all complete. The file manager UX redesign is done (unified FileManagerView, collapsible sidebar folder tree, breadcrumb, drag-drop move, root folder view). A full test suite was created and all tests pass. Three bugs were found and fixed this session. All changes are uncommitted and staged for a single commit.
</current_state>

<completed_work>

- Plans 04-01 through 04-09: all previously completed (see SUMMARY files)
- **This session:**
  - File manager UX redesign: `FileManagerView.vue` (unified Explorer-style), `AppSidebar.vue` (Folders as clickable link to `/`), `FolderTreeItem.vue` (recursive sidebar tree), root view now fetches and displays root folders
  - **Frontend test suite** (Vitest + @vue/test-utils): 55 tests across 4 files — `stores/__tests__/folders.test.js`, `components/folders/__tests__/FolderBreadcrumb.test.js`, `components/folders/__tests__/FolderTreeItem.test.js`, `views/__tests__/FileManagerView.test.js`
  - **Bug fix**: `@click.stop` on folder name wrapper div in `FileManagerView.vue` was blocking all folder name click navigation — removed
  - **Backend test suite**: `backend/tests/test_folders.py` — 35 tests covering FOLD-01 through FOLD-05 + security invariants
  - **Bug fix**: Duplicate folder name 409 not firing for root folders (NULL parent_id) — added explicit ORM check in `create_folder` and `rename_folder`
  - **Bug fix**: `delete_folder` CTE and quota UPDATE used `str(uuid)` (dashes) instead of `uuid.hex` — SQLite UUID mismatch caused cascade delete and quota decrement to silently do nothing
</completed_work>

<remaining_work>

- Commit all uncommitted changes (see files list below)
- Run `/gsd:verify-work 4` to validate phase 4 against requirements
- Phase 5: pluggable cloud storage backends
</remaining_work>

<decisions_made>

- Removed `@click.stop` from the folder name column div in `FileManagerView.vue` — parent's `@click` handler already returns null when renaming, so stop was only blocking navigation
- Explicit ORM duplicate check added before folder insert/rename — SQL UNIQUE constraints with NULL columns don't enforce uniqueness (NULL ≠ NULL in SQL)
- `uuid.hex` used in all raw SQL parameters — SQLite stores UUID without dashes, `str(uuid)` includes dashes; SQLAlchemy ORM handles format transparently but raw `text()` queries do not
- Vitest + @vue/test-utils + happy-dom chosen for frontend tests — matches the Vite build setup, no additional transpilation needed
</decisions_made>

<blockers>
None.
</blockers>

## Required Reading (in order)
1. `.planning/phases/04-folders-sharing-quotas-document-ux/04-09-SUMMARY.md` — last completed plan
2. `frontend/src/views/FileManagerView.vue` — unified file manager view
3. `backend/api/folders.py` — fixed folder endpoints

## Infrastructure State
- Docker Compose: all services running (backend :8000, frontend :5173, postgres, minio, redis)
- Frontend tests: `cd frontend && npx vitest run` → 55 passed
- Backend tests: `docker exec document_scanner-backend-1 python -m pytest tests/test_folders.py -v` → 35 passed

## Uncommitted Files
```
M  backend/api/folders.py
M  backend/tests/test_folders.py
M  frontend/src/components/layout/AppSidebar.vue
M  frontend/src/router/index.js
M  frontend/src/stores/documents.js
M  frontend/src/stores/folders.js
?? frontend/src/components/folders/FolderTreeItem.vue
?? frontend/src/components/folders/__tests__/
?? frontend/src/stores/__tests__/
?? frontend/src/views/FileManagerView.vue
?? frontend/src/views/__tests__/
?? frontend/vitest.config.js
?? frontend/package.json (vitest + @vue/test-utils added)
```

<context>
All Phase 4 plans are done. The session focused on UX polish (file manager redesign) and quality (test suite + bug fixes). The navigation bug was caused by an accidental @click.stop that blocked clicking folder names. Two backend data bugs were caused by SQL/SQLite UUID format differences. Everything is clean and ready to commit + verify.
</context>

<next_action>
Start with: commit all changes with `git add -A && git commit -m "..."`, then run `/gsd:verify-work 4`.
</next_action>