Implementation Complete - Added source to search_results and title to images. All 212 tests pass. Commit 9f643d4 merged to main.

## Feature Triage Complete **Status:** PARTIALLY IMPLEMENTED **Summary:** - 2 of 5 requested fields are already implemented (`snippet`, `last_updated` for search_results; `origin_url` for images) - 3 fields still need implementation: 1. `source` field from search_results (value: 'web') 2. `title` field from images 3. Handle both `image_url` and `url` field names for images **Implementation Location:** - `backend/perplexity_client.py` - extraction logic (lines 196-235) - `backend/models.py` - add `source` column to SearchResult, `title` column to Image - `backend/schemas.py` - add corresponding Pydantic fields - `backend/crud.py` - update persistence logic - New Alembic migration required for DB columns **Complexity:** Low (~20 lines of changes + migration) **Live API Verification:** Confirmed `source` field is returned by Perplexity API (value: 'web') See attached triage report for full implementation details and code locations.