Add GitService.CheckoutBranchAsync; compare targetBranch to current HEAD
before MergeNoFfAsync and switch when they differ. Returns Blocked if the
branch does not exist. Add three new tests (two service, one GitService).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Worker and App Program.cs: replace SqliteConnectionFactory+SchemaInitializer
with AddDbContextFactory<ClaudeDoDbContext> + Database.Migrate(). Repos
changed from AddSingleton to AddScoped.
All singleton services (QueueService, StaleTaskRecovery, WorktreeManager,
TaskRunner) and singleton ViewModels (MainWindowViewModel, TaskDetailViewModel,
TaskListViewModel, TaskEditorViewModel) now take IDbContextFactory<ClaudeDoDbContext>
and create short-lived contexts per operation.
Test infrastructure: DbFixture now uses EF migrations instead of SchemaInitializer;
all test classes create contexts via DbFixture.CreateContext().
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- claude process: run stdout/stderr reads without ct; rely on
kill-on-cancel closing the pipes to unblock them — previously
ReadLineAsync(ct) could hang, stalling task slots and shutdown
- task runner: terminal db writes (task_runs, MarkDone, MarkFailed,
SetLogPath) now use CancellationToken.None; RunOnceAsync catches
OCE and finalizes the run row so ContinueAsync can resume
- task repository: GetNextQueuedAgentTaskAsync is now a single
UPDATE ... RETURNING statement — closes TOCTOU window where two
loop iterations could dispatch the same queued task
- queue service: dispose CancellationTokenSource in slot-completion
ContinueWith to stop leaking wait handles
- git service: register ct.Kill(processTree), drain reads without ct,
always reap via WaitForExitAsync(None) — no more git zombies on
cancelled worktree ops
- worktree manager: branch name uses full task id (dashes stripped)
instead of 8-char prefix, eliminating collision risk
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Per-task checklist backend: subtasks table with CASCADE delete,
SubtaskEntity + SubtaskRepository (connection-per-op, async), DI
registration in App and Worker, TaskRunner composes a '## Sub-Tasks'
markdown block into the Claude prompt when subtasks exist.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
