Add chat preference extraction on shared ingest

docs/progress.md

@@ -7,6 +7,39 @@ Updated: 2026-02-22
 - 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 (2026-02-22): MVP Chat Preference Extractor + Ingest Enrichment
+
+Implemented the first local semantic-enrichment pass so shared chat messages can
+start building inferred person preferences automatically.
+
+- `lib/features/local/chat_preference_extractor.dart` (new)
+  - added a pure Dart, local-first rule-based extractor
+  - extracts evidence-backed preference candidates from message text:
+    - `prefer X over Y` (creates like/dislike pair)
+    - `favorite ... is ...`
+    - `I love/like/enjoy ...`
+    - `I hate/dislike/don’t like ...`
+    - `allergic to ...`
+  - adds category heuristics (e.g. drink/food/hobby/environment/health)
+  - returns confidence-scored candidates with evidence snippets
+
+- `lib/features/local/local_repository.dart`
+  - integrated extractor into resolved shared-message ingest flow
+  - when a chat share is imported and linked to a profile:
+    - store raw shared message + capture moment (existing behavior)
+    - extract preference candidates from message text
+    - upsert local inferred preference signals with evidence + source metadata
+
+- Tests
+  - `test/features/local/chat_preference_extractor_test.dart` (new)
+    - extractor unit coverage for positive/negative/comparative/allergy patterns
+  - `test/features/local/local_repository_test.dart`
+    - added ingest test proving shared chat import creates inferred signals
+
+- Validation
+  - `flutter analyze` -> pass
+  - `flutter test` -> pass
+
 ## Latest Milestone (2026-02-22): Local Preference Signal Scaffolding (Inferred/Confirmed)
 
 Added a local-first data model and repository APIs for chat-derived preference