feat(registratura): 3.02 bidirectional integration, simplified status, threads

- Dynamic document types: string-based DocumentType synced with Tag Manager
  (new types auto-create tags under 'document-type' category)
- Added default types: 'Apel telefonic', 'Videoconferinta'
- Bidirectional Address Book: quick-create contacts from sender/recipient/
  assignee fields via QuickContactDialog popup
- Simplified status: Switch toggle replaces dropdown (default open)
- Responsabil (Assignee) field with contact autocomplete (ERP-ready)
- Entry threads: threadParentId links entries as replies, ThreadView shows
  parent/current/children tree with branching support
- Info tooltips on deadline, status, and assignee fields
- New Resp. column and thread icon in registry table
- All changes backward-compatible with existing data

SESSION-LOG.md

@@ -4,6 +4,45 @@
 
 ---
 
+## Session — 2026-02-27 night (GitHub Copilot - Claude Opus 4.6)
+
+### Context
+
+Continued Phase 3 refinements. Picked task 3.02 (HEAVY) — Registratura bidirectional integration and UX improvements.
+
+### Completed
+
+- **3.02 ✅ Registratura — Integrare și UX:**
+  - **Dynamic document types:** DocumentType changed from enum to string-based. Default types include "Apel telefonic" and "Videoconferință". Inline "Tip nou" input with Plus button auto-creates Tag Manager tags under category "document-type". Form select pulls from both defaults and Tag Manager.
+  - **Bidirectional Address Book:** Sender/Recipient/Assignee autocomplete shows "Creează contact" button when typed name doesn't match any existing contact. QuickContactDialog popup creates contact in Address Book with Name (required), Phone (optional), Email (optional).
+  - **Simplified status:** Removed Status dropdown. Replaced with Switch toggle — default is "Deschis" (open). Toggle to "Închis" when done. No "deschis" option in UI, everything is implicitly open.
+  - **Internal deadline tooltip:** Added Info icon tooltips on "Termen limită intern" (explaining it's not a legal deadline), "Închis" (explaining default behavior), and "Responsabil" (explaining ERP prep).
+  - **Responsabil (Assignee) field:** New field with contact autocomplete + quick-create. Separate `assignee` and `assigneeContactId` on RegistryEntry type. Shown in registry table as "Resp." column with User icon.
+  - **Entry threads & branching:** New `threadParentId` field on RegistryEntry. Thread parent selector with search. ThreadView component showing parent → current → children tree with direction badges, siblings (branches), and click-to-navigate. Thread icon (GitBranch) in registry table. Supports one-to-many branching (one entry generates multiple outgoing replies).
+
+### Files Created
+
+- `src/modules/registratura/components/quick-contact-dialog.tsx` — Rapid contact creation popup from Registratura
+- `src/modules/registratura/components/thread-view.tsx` — Thread tree visualization (parent, current, siblings, children)
+
+### Files Modified
+
+- `src/modules/registratura/types.ts` — Dynamic DocumentType, DEFAULT_DOC_TYPE_LABELS, new fields (assignee, assigneeContactId, threadParentId)
+- `src/modules/registratura/index.ts` — Export new constants
+- `src/modules/registratura/components/registry-entry-form.tsx` — Complete rewrite: dynamic doc types, contact quick-create, Switch status, Responsabil field, thread parent selector, tooltips
+- `src/modules/registratura/components/registratura-module.tsx` — Wired useTags + useContacts, handleCreateContact + handleCreateDocType callbacks, thread navigation
+- `src/modules/registratura/components/registry-table.tsx` — Dynamic doc type labels, Resp. column, thread icon
+- `src/modules/registratura/components/registry-filters.tsx` — Uses DEFAULT_DOC_TYPE_LABELS from types.ts
+- `ROADMAP.md` — Marked 3.02 as done
+
+### Notes
+
+- Existing data is backward-compatible: old entries without `assignee`, `threadParentId` render fine (fields are optional)
+- Quick contact creation sets type to "collaborator" and adds note "Creat automat din Registratură"
+- DocumentType is now `string` but retains defaults via `DEFAULT_DOCUMENT_TYPES` array
+
+---
+
 ## Session — 2026-02-27 evening (GitHub Copilot - Claude Opus 4.6)
 
 ### Context