Add duplicate profile merge and share deep-link routing

docs/progress.md

@@ -7,6 +7,40 @@ Updated: 2026-02-18
 - After every sensible code/documentation change set, create a git commit as
   the last step so the next agent session can pick up from clean checkpoints.
 
+## Latest Milestone (2026-02-18): Duplicate Profile Merge + Share Deep-Link Polish
+
+Improved identity continuity from WhatsApp intake with merge tooling and direct
+navigation:
+
+- Added duplicate-profile merge operation in local repository:
+  - `lib/features/local/local_repository.dart`
+  - new `mergePersonProfiles(sourcePersonId, targetPersonId)`:
+    - merges target profile metadata (tags/notes/location/affinity/next moment)
+    - rebinds related records from source -> target:
+      - moments
+      - ideas
+      - reminders
+      - source links
+      - shared message history
+      - unresolved inbox candidate IDs
+    - enqueues sync envelopes for merged target + source delete + rebounded
+      related entities
+- Added merge action in People UX:
+  - `lib/features/people/people_view.dart`
+  - new `Merge` / `Merge duplicates` action in People header
+  - duplicate-name detection and merge dialog for selecting source/target
+- Share destination deep-link polish:
+  - `lib/features/share_intake/whatsapp_share_listener.dart`
+    - initial app launch from share intent now auto-opens destination context:
+      - `Share Inbox` for unresolved imports
+      - `People` with selected imported profile for resolved imports
+    - snackbar action updated to `Open Profile` / `Open Inbox`
+  - `lib/features/settings/settings_view.dart`
+    - simulated share snackbar now offers direct navigation to profile/inbox
+- Added merge test coverage:
+  - `test/features/local/local_repository_test.dart`
+  - verifies merge rebinding across related records
+
 ## Latest Milestone (2026-02-18): Share Inbox Resolution Flow
 
 Added manual resolution UX and data paths for ambiguous/unidentifiable WhatsApp