Replace fixed CSS Grid with react-resizable-panels v4 (Group/Panel/Separator).
Upper panel (video + query) defaults to 30%, lower panel (response) to 70%.
Draggable divider with hover/active state via data-separator attributes.
Add ResizeObserver and DOMRect polyfills to test setup for jsdom compatibility.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
- Add react-router-dom with NavBar component (LTT + RAG Database tabs)
- Extract AppContent into LTTPage, add RAGDatabasePage placeholder
- Refactor App.tsx to BrowserRouter + Routes layout
- Switch ResponsePanel to react-markdown for rich formatting
- Fix ResponsePanel test for markdown rendering
- Update RAG prompt to cite source name instead of number
- Save Phase 1 enhancement plan (.plans/phase1_enhancement_plan.md)
Set up Vite + React 18 + TypeScript project with Tailwind CSS, Axios API client matching backend Pydantic schemas (QueryRequest, QueryResponse, IngestResponse, SourceMetadata), and TanStack Query mutation hooks for /query and /ingest endpoints.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>