- Add ts/search_select.ts: typed port of the SearchSelect/FilterSelect widget.
Exports SearchSelectOption / SearchSelectChangeDetail as the single source of
truth for the "search-select:change" event contract
- add_purchase.ts now imports those types via `import type` (no runtime
coupling), instead of redefining them locally
- Declare window.readSearchSelect in ts/globals.d.ts
- Point the SearchSelect component Media and every view/e2e/test reference at
the compiled dist/search_select.js
- Update doc comments in common/components/search_select.py to name the TS source
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
