## Summary - replace the full-page repository chooser with a searchable header dropdown shared across home, repository, and workspace screens - auto-open the picker at `/` while preserving pagination, retry, expired-session recovery, and accessible keyboard/focus behavior - keep repository and channel context usable on narrow screens and expand hosted E2E coverage

## Testing - `bun run ci` - `bun run types` - `bun run build` - `bun test` (657 passed, 2 skipped) - `E2E_SKIP_BUILD=1 bun run e2e e2e/hosted.e2e.ts` (5 passed)