## Summary
Add session download tracking to track which assets were downloaded
during the current session. This enables UI features like:
- Badge count on "Imported" nav showing newly downloaded assets
- Visual indicator on asset cards for recently downloaded items
## Changes
- Add `acknowledged` flag to `AssetDownload` interface
- Add `unacknowledgedDownloads` computed for filtering
- Add `sessionDownloadCount` computed for badge display
- Add `isDownloadedThisSession(identifier)` to check individual assets
- Add `acknowledgeDownload(identifier)` to mark assets as seen
## Testing
- 6 new unit tests covering all session tracking functionality
- Run: `pnpm test:unit -- src/stores/assetDownloadStore.test.ts`
## Related
- Part of Asset Browser improvements (#8090)
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8213-feat-add-session-download-tracking-to-assetDownloadStore-2ef6d73d365081538045e8544d26bafa)
by [Unito](https://www.unito.io)
---------
Co-authored-by: Amp <amp@ampcode.com>
## Summary
Migrates all unit tests from `tests-ui/` to colocate with their source
files in `src/`, improving discoverability and maintainability.
## Changes
- **What**: Relocated all unit tests to be adjacent to the code they
test, following the `<source>.test.ts` naming convention
- **Config**: Updated `vitest.config.ts` to remove `tests-ui` include
pattern and `@tests-ui` alias
- **Docs**: Moved testing documentation to `docs/testing/` with updated
paths and patterns
## Review Focus
- Migration patterns documented in
`temp/plans/migrate-tests-ui-to-src.md`
- Tests use `@/` path aliases instead of relative imports
- Shared fixtures placed in `__fixtures__/` directories
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7811-chore-migrate-tests-from-tests-ui-to-colocate-with-source-files-2da6d73d36508147a4cce85365dee614)
by [Unito](https://www.unito.io)
---------
Co-authored-by: Amp <amp@ampcode.com>
Co-authored-by: GitHub Action <action@github.com>
