feat(workspace,jobs): emit sync_aborted_on_restart audit + enrich worktree.pruned metadata

- workspace.ResetStuckSyncStatuses now returns affected IDs so app.New can record one workspace.sync_aborted_on_restart audit per reset row
- worktree_prune audit metadata gains workspace_id and path alongside existing branch
- updated fakeRepo + integration test for new ResetStuckSyncStatuses signature
- add TestWorktreePrune_AuditMetadataContainsWorkspaceIDAndPath

internal/workspace/repository.go

@@ -44,7 +44,9 @@ type Repository interface {
 	UpdateWorkspaceCore(ctx context.Context, id uuid.UUID, name, description, defaultBranch string) (*Workspace, error)
 	UpdateWorkspaceSyncStatus(ctx context.Context, id uuid.UUID, st SyncStatus, syncedAt *time.Time, errMsg string) (*Workspace, error)
 	DeleteWorkspace(ctx context.Context, id uuid.UUID) error
-	ResetStuckSyncStatuses(ctx context.Context) error
+	// ResetStuckSyncStatuses 把启动时残留的 cloning/syncing 复位为 error，
+	// 返回被复位的工作区 ID 列表（按发生顺序），由调用方写 audit。
+	ResetStuckSyncStatuses(ctx context.Context) ([]uuid.UUID, error)
 
 	// Worktree (no-tx 部分)
 	GetWorktreeByID(ctx context.Context, id uuid.UUID) (*Worktree, error)
@@ -240,11 +242,16 @@ func (r *pgRepo) DeleteWorkspace(ctx context.Context, id uuid.UUID) error {
 	return nil
 }
 
-func (r *pgRepo) ResetStuckSyncStatuses(ctx context.Context) error {
-	if err := r.q.ResetStuckSyncStatuses(ctx); err != nil {
-		return errs.Wrap(err, errs.CodeInternal, "reset stuck sync")
+func (r *pgRepo) ResetStuckSyncStatuses(ctx context.Context) ([]uuid.UUID, error) {
+	rows, err := r.q.ResetStuckSyncStatuses(ctx)
+	if err != nil {
+		return nil, errs.Wrap(err, errs.CodeInternal, "reset stuck sync")
 	}
-	return nil
+	ids := make([]uuid.UUID, 0, len(rows))
+	for _, row := range rows {
+		ids = append(ids, fromPgUUID(row.ID))
+	}
+	return ids, nil
 }
 
 // ===== Workspace fetch (jobs runner) =====