Snapshot taken before fast-forwarding feature/rag to origin and merging main.
Bundles in-flight work so the merge has a clean tree:
Frontend
- PDF preview panel (preview-panel, preview-pdf-view, preview-text-view,
preview-unavailable) with lazy-rendered page thumbnail rail
- Resizable preview slot via useResizablePanelWidth hook (drag handle,
localStorage persistence, viewport clamping)
- Neutral scrollbar + Source Excerpt card restyle (no brand-coloured rail)
- Preview-store + chat-adapter / rag-api / kb-detail wiring
- Frontend test harness (vitest.config, setupTests, biome update) and the
paired __tests__ suites for preview, sources, document-row, chat-adapter,
rag-api, knowledge-bases-tab, search-knowledge-base-tool-ui
Backend
- RAG locator + authorization modules with chunking / retrieval / tool /
vector_store / studio_db updates
- Paired test_rag_* suites (authorization, locators, locator_backfill,
locator_migration, preview_routes, preview_target_locators, source_identity)
Other
- tests/fixtures/rag-preview for preview route fixtures (sample.pdf,
sample.txt, make_fixture_pdf.py)
- .gitignore + package(-lock).json adjustments for the new test runner
Will be squashed/reworked via interactive rebase after main is merged.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
