c26e9eacfa
- Delete dead repo-workspace code: RepoWorkspacePage, useRepoWorkspace, WorkspaceLayout, FileBrowser, old git components (git-toolbar, file-editor, commit-panel), and repo-workspace.css. - Fix stale backend test imports for moved models/services. - Add GitOperations unit tests. - Add integration tests for workspace files, git, and instances endpoints. - Add frontend tests for WorkspaceDetailPage and ProjectCard. - Update OpenSpec workspace-first-ui tasks and mark change completed. - Regenerate project maps. Quality gates: npm run typecheck, npm run lint, npm test -- --run (87 passed), python3 -m py_compile on changed backend files, pytest backend workspace tests.