Add ticket time tracking with reports and entry management.

Support start/stop timer, manual durations, grouped reports, and per-ticket edit/delete of time entries with undo.

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

internal/command/executor.go

@@ -21,12 +21,13 @@ type Executor interface {
 
 // History is an undo/redo stack for Command values, optionally persisted to disk.
 type History struct {
-	mu    sync.Mutex
-	undoS []Command
-	redoS []Command
-	path  string
-	store ticket.Store
-	max   int
+	mu        sync.Mutex
+	undoS     []Command
+	redoS     []Command
+	path      string
+	store     ticket.Store
+	timeStore ticket.TimeStore
+	max       int
 }
 
 // NewHistory creates an empty in-memory command history (cap MaxHistory).
@@ -36,13 +37,15 @@ func NewHistory() *History {
 
 // OpenHistory loads a persisted history from path (DataDir/history.json) or
 // starts empty if the file is missing. Subsequent Do/Undo/Redo write back.
-func OpenHistory(path string, store ticket.Store) (*History, error) {
+// timeStore may be nil if time-entry commands are unused.
+func OpenHistory(path string, store ticket.Store, timeStore ticket.TimeStore) (*History, error) {
 	h := &History{
-		path:  path,
-		store: store,
-		max:   MaxHistory,
+		path:      path,
+		store:     store,
+		timeStore: timeStore,
+		max:       MaxHistory,
 	}
-	undo, redo, err := loadHistoryFile(path, store)
+	undo, redo, err := loadHistoryFile(path, store, timeStore)
 	if err != nil {
 		return nil, err
 	}