message-input.tsx imports ./composer-height-mirror, which only exists
as .web.ts / .native.ts / .d.ts. Metro picks the right variant at build
time, but vitest was using Vite's default extension list and failing to
resolve the import — breaking app tests in CI.
Prepend `.web.*` variants to `resolve.extensions` in both the root and
app vitest configs so test runs (which already alias react-native →
react-native-web) pick the web implementation, matching what Metro
does for the web bundle.
Route all git checkout queries through WorkspaceGitService instead of
shelling out to git on every call. This makes fetch_agents_request
instant when warm (cached in-memory snapshots) and deduplicates
concurrent cold-start refreshes via ensureWorkspaceTarget.
- buildProjectPlacementForCwd now uses workspaceGitService.getSnapshot()
- worktree-session call sites use WorkspaceGitService
- Deleted getCheckoutStatusLite and its 4 return types from checkout-git
- Fixed cold-start thundering herd: getSnapshot deduplicates via
ensureWorkspaceTarget instead of spawning parallel git processes
- Extracted checkout-diff logic into WorkspaceGitService
