## Summary
Projects workspaces now support consistent selection across projects,
repositories, reviews, tasks, and channel results. A user can collect
related entities, see the active selection without losing their current
workspace, and pass a bounded, injection-safe representation to an agent
for discussion.
Detail views now keep repository source and availability explicit while
preserving contextual actions across local and remote workspaces.
Missing or inaccessible repositories produce a recoverable state instead
of leaving the workspace ambiguous.
This is part 2 of the Projects v6 stack. Parts 3 and 4 will add
context-aware collaboration and navigation/detail-page polish.
### Related issue
Related: #6335
### Testing
- Full pre-push gate passed: file-size checks, Biome, TypeScript,
Desktop unit tests, Tauri checks, and Rust tests
- Project context safety suite: 9/9 passed, including bounded untrusted
overview data and hidden-context stripping
- Updated Playwright coverage exercises grouped selection,
selection-aware agent context, repository source states, and detail
actions
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Signed-off-by: Thomas Petersen <thomasp@squareup.com>
2b7be9340d