Create end-to-end integration test suite for personality learning pipeline:
- Test get_conversations_by_date_range retrieves conversations correctly
- Test get_conversation_messages retrieves messages in proper format
- Test pattern extraction from conversations
- Test personality layer creation from patterns
- Test complete learning pipeline from conversations to layers
- Test pattern confidence score validation
- Test empty conversation range handling
- Test personality application to context
All 8 integration tests pass successfully, validating the complete
data retrieval pipeline needed for personality learning.
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
