docs: mark task 1.09 complete in ROADMAP and SESSION-LOG

SESSION-LOG.md

@@ -4,6 +4,30 @@
 
 ---
 
+## Session — 2026-02-19 (GitHub Copilot - Claude Sonnet 4.6)
+
+### Completed
+
+- **Task 1.09: Address Book — vCard Export + Registratura Reverse Lookup** ✅
+  - Created `src/modules/address-book/services/vcard-export.ts` — generates vCard 3.0 (`.vcf`) with all contact fields
+  - Added Download icon button on contact card hover → triggers `.vcf` file download
+  - Added FileText (detail) icon button → opens `ContactDetailDialog`
+  - `ContactDetailDialog` shows full contact info, contact persons, notes, and scrollable Registratura table
+  - Registratura reverse lookup uses `allEntries` (bypasses active filters) and matches `senderContactId` or `recipientContactId`
+  - Build passes zero errors
+
+### Commits
+
+- `da33dc9` feat(address-book): vCard export and Registratura reverse lookup
+
+### Notes
+
+- Build verified: `npx next build` → ✓ Compiled successfully
+- Push pending — see below
+- Next task: **1.10** — Word Templates Placeholder Auto-Detection
+
+---
+
 ## Session — 2026-02-19 (GitHub Copilot - Haiku 4.5)
 
 ### Completed