Assign readable ticket keys from project code and sequence.

Replace UUID-looking sync labels in TUI and web with keys like TAS-1,
while keeping the remote UUID for task-master matching.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/tmsync/sync.go

@@ -87,6 +87,8 @@ func (s *Syncer) Pull(ctx context.Context, localProjectID string, tm project.Tas
 			next.Status = rt.Status
 			next.Source = ticket.SourceTaskMaster
 			next.ExternalURL = extURL
+			next.Number = rt.Number
+			next.Key = rt.Key
 			if sameFields(prev, next) {
 				_ = s.Store.MarkSynced(prev.ID)
 				res.Skipped++
@@ -104,6 +106,7 @@ func (s *Syncer) Pull(ctx context.Context, localProjectID string, tm project.Tas
 			Title: rt.Title, Description: rt.Description, Status: rt.Status,
 			ProjectID: localProjectID, Source: ticket.SourceTaskMaster,
 			ExternalID: rt.ID, ExternalURL: extURL,
+			Number: rt.Number, Key: rt.Key,
 			CreatedAt: now, UpdatedAt: now, SyncedAt: now,
 		})
 		if err != nil {
@@ -142,6 +145,8 @@ func (s *Syncer) Push(ctx context.Context, localProjectID string, tm project.Tas
 				return res, err
 			}
 			t.ExternalID = created.ID
+			t.Number = created.Number
+			t.Key = created.Key
 			t.Source = ticket.SourceTaskMaster
 			t.ExternalURL = strings.TrimRight(tm.BaseURL, "/") + "/#/ticket/" + created.ID
 			if err := s.Store.Update(t); err != nil {
@@ -166,7 +171,8 @@ func (s *Syncer) Push(ctx context.Context, localProjectID string, tm project.Tas
 }
 
 func sameFields(a, b ticket.Ticket) bool {
-	return a.Title == b.Title && a.Description == b.Description && a.Status == b.Status
+	return a.Title == b.Title && a.Description == b.Description && a.Status == b.Status &&
+		a.Key == b.Key && a.Number == b.Number
 }
 
 func (s *Syncer) listTickets(ctx context.Context, tm project.TaskMaster) ([]ticket.Ticket, error) {