- Add `react-router-dom` for client-side routing.
- Add `shadcn` components: `Sidebar`, `Dialog`, `Button`, `ScrollArea`, `Avatar`, `Badge`, `Card`, `Sheet`, `Tooltip`, `Separator`, `Input`, `Label`.
- Implement `AppSidebar` with navigation to Characters and Equipments.
- Implement `Characters` page displaying character avatars.
- Implement `Equipments` page with:
- Horizontal scrollable category filter (multi-select).
- Equipment grid layout.
- "Extract Equipment" button opening a `Dialog` (refactored from `Extractor` component).
- Update `Equipment` API and Service to support filtering by multiple categories.
- Add database index to `Equipment` table on `[category, subCategory]`.
- Refactor `App.tsx` and `Layout.tsx` to use the new routing and sidebar structure.
- Remove legacy `Stash` and `Extractor` components.
- Add `.env` to `.gitignore` and create `.env.example`.
- Install `@modelcontextprotocol/sdk` to fix type errors.
- Fix linting issues (unused vars, error handling) in `src/api/extract.ts` and `src/service/ai.ts`.
- Fix typecheck errors in `src/service/file.ts` (Buffer types) and `src/service/ai.ts` (GenAI types).
- Update `tsconfig.json` to use React JSX and skip lib checks.
- Fix tests in `src/service/asset.test.ts` (mocking `Bun.write`) and `src/api/equipment.test.ts`.
- Refactor `src/ui/components/Stash.tsx` and `src/ui/components/Extractor.tsx` to infer types from Hono client.
- Simplify `src/ui/types.ts` by removing redundant types.