T08a: Frontend DMS + Tags + Permissions UI — 33 tests, tsc clean, vite build pass

- DMS file browser: folder tree + file grid + upload dropzone + search + preview modal
- DMS share dialog: user/group share + public share links with password+expiry
- DMS bulk actions: bulk move + bulk delete with confirm dialogs
- DMS trash view: deleted files list with restore button
- Tags: TagPicker on company/contact detail pages (new tabs tab)
- Tags: TagCloud + BulkTagDialog for bulk tag assignment
- Permissions: share link creation, permission display, copy-link button
- API clients: dms.ts, tags.ts, permissions.ts
- Routes: /dms, /dms/trash added to router
- Sidebar: DMS nav link updated
- i18n: de.json + en.json translations for DMS/Tags/Permissions
- 33 new tests (5 test files), full regression 276/276 pass
- tsc --noEmit: 0 errors, vite build: 252 modules

.a0/project_state.json

@@ -1,10 +1,10 @@
 {
   "project_name": "leocrm",
   "phase": "phase-3-implementation",
-  "status": "T08b_complete_phase3_5_tasks_remaining",
-  "last_commit": "7350739",
-  "completed_tasks": ["T01","T02","T03","T04","T05","T07a","T08b","T09","T11"],
+  "status": "T06_complete_3_tasks_remaining",
+  "last_commit": "f646c59",
+  "completed_tasks": ["T01","T02","T03","T04","T05","T06","T07a","T07b","T08b","T09","T11"],
   "current_task": null,
-  "next_task": "T07b",
-  "updated_at": "2026-06-30T11:47:00+02:00"
+  "next_task": "T08a",
+  "updated_at": "2026-07-01T15:41:00+02:00"
 }