Fixed diff calculation for done tasks to prefer the rebase range over a stale base commit, resolving incorrect diff output when a task branch has been rebased (FN-4741). Added test coverage for the session diff routes.
Fusion-Task-Id: FN-4741
- Update node management UI components to use shared form/button classes, semantic color tokens, and accessible interactions
- Refine mesh topology rendering and related dashboard tests for improved readability and behavior coverage
- Adjust discovery routes to reuse injected centralCore instances without unnecessary init/close cycles
- Add/extend tests for shared CentralCore discovery flows and model settings scope save behavior
- Return empty diff instead of 500 error when worktree path is null, undefined, or doesn't exist on disk
- Add 9 tests covering null worktree, undefined worktree, nonexistent paths, and valid paths
- Fixes dashboard crash on diff tab for in-progress tasks with missing worktrees
- Update done-task /diff and /file-diffs routes to always resolve merge base from commitSha^ for squash merges
- Remove baseCommitSha ancestor/merge-base fallback logic that could include unrelated merged task changes
- Expand routes-diff regression tests to assert sha^ behavior and ensure baseCommitSha/baseBranch are ignored for done tasks
- Add done-task coverage in routes-file-diffs tests for sha^ success, missing commitSha, and rev-parse failure paths
- Add backend file operations (copy, move, delete, rename, download) in file-service.ts with workspace root protection
- Add API routes for file operations including directory download as zip via archiver
- Add client API functions in api.ts for all file operation endpoints
- Add context menu UI in FileBrowser component with operations dialog for confirming destructive actions
- Add CSS styles for context menu including danger items and dividers
- Add 33 FileBrowser context menu tests and 485+ file-service tests
- Fix pre-existing test failures in routes-diff, mission-e2e, and theme sync tests
- Fix diff base resolution for done/merged tasks to use task.baseCommitSha as priority
- Add 3-tier fallback: baseCommitSha → merge-base with base branch → first parent
- Validate baseCommitSha is a valid ancestor before using it
- Use task.baseBranch (defaulting to main) for merge-base computation
- Update and expand test cases to cover new priority resolution logic
- Replace git show with git diff from merge base to isolate only task-specific changes in done task diffs
- Find merge base between merge commit and its first parent to avoid showing unrelated main-branch changes
- Add fallback logic: try merge-base, then parent commit, then return empty diff
- Apply fix to both file list and individual file diff endpoints
- Add comprehensive tests for merge-base computation with various git scenarios
- AgentsView: add missing fetchModels/fetchAgentStats mocks, update tests
for new multi-step NewAgentDialog and ActiveAgentsPanel dual rendering
- routes-diff: rewrite tests to match new resolveDiffBase() two-dot syntax
- routes.test: fix spec/revise test — done→triage is valid per VALID_TRANSITIONS
- activity-feed CSS: replace hardcoded rgba(88,166,255) with color-mix token,
fix var(--error) → var(--color-error)
- server/webhook/websocket tests: add getDatabase() mock for AiSessionStore
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Updated /tasks/:id/diff endpoint to use merge-base comparison
- Changed from HEAD~1..HEAD to ...HEAD syntax
- Added fallback to HEAD when merge-base fails
- Verified fix matches /tasks/:id/file-diffs endpoint pattern
