* fix: use dynamic merge-base for git commits to filter main branch commits
When a feature branch is rebased on main, the stored base_commit_sha
becomes outdated. Using git log base_commit..HEAD would include main
branch commits that were merged after the stored base commit.
This fix adds dynamic merge-base calculation using the session's
base_branch (target branch like origin/main). When fetching commits:
- The backend computes git merge-base HEAD target_branch
- This returns only commits not yet merged into the target branch
- Works correctly even after rebases
Changes:
- Extended SessionReader interface with GetSessionBaseBranch method
- Added GetMergeBase to GitOperator for computing merge-base
- Updated git log API to accept target_branch parameter
- Modified wsGitCommits handler to pass target branch for filtering
* fix: update executor_test mock to match new GetGitLog signature
* fix: update remaining mocks to match new GetGitLog signature
* fix: update integration test mock for GetGitLog signature
* fix: address code review feedback
- Use GetOrEnsureExecution in wsGitCommits to recover workspaces after backend restarts
- Fix archive snapshot to use baseBranch for merge-base when baseCommit is empty
- Extended ExecutionLookup interface with GetOrEnsureExecution method
* fix: distinguish not-ready errors from unexpected errors in wsGitCommits
Address CodeRabbit review feedback:
- Use errors.Is() to detect ErrSessionWorkspaceNotReady sentinel error
- Return ready:false gracefully for workspace-not-ready and session-not-ready errors
- Return actual errors for unexpected failures (database errors, etc.)
- Add comprehensive tests for error handling paths
João Salavisa