refactor: replace interface{} with any for improved type clarity

pkg/agent/loop.go

@@ -2270,7 +2270,7 @@ func (al *AgentLoop) buildCommandsRuntime(agent *AgentInstance, opts *processOpt
 			}
 			return al.channelManager.GetEnabledChannels()
 		},
-		GetActiveTurn: func() interface{} {
+		GetActiveTurn: func() any {
 			turns := al.GetAllActiveTurns()
 			if len(turns) == 0 {
 				return nil

pkg/agent/subturn.go

@@ -315,7 +315,7 @@ func spawnSubTurn(
 				}
 			}()
 		case <-timeoutCtx.Done():
-			// Check parent context first - if it was cancelled, propagate that error
+			// Check parent context first - if it was canceled, propagate that error
 			if ctx.Err() != nil {
 				return nil, ctx.Err()
 			}

pkg/agent/turn_state.go

@@ -129,7 +129,7 @@ func (ts *turnState) Info() *TurnInfo {
 // GetAllActiveTurns retrieves information about all currently active turns across all sessions.
 func (al *AgentLoop) GetAllActiveTurns() []*TurnInfo {
 	var turns []*TurnInfo
-	al.activeTurnStates.Range(func(key, value interface{}) bool {
+	al.activeTurnStates.Range(func(key, value any) bool {
 		if ts, ok := value.(*turnState); ok {
 			turns = append(turns, ts.Info())
 		}

pkg/commands/runtime.go

@@ -11,7 +11,7 @@ type Runtime struct {
 	ListAgentIDs       func() []string
 	ListDefinitions    func() []Definition
 	GetEnabledChannels func() []string
-	GetActiveTurn      func() interface{} // Returning interface{} to avoid circular dependency with agent package
+	GetActiveTurn      func() any // Returning any to avoid circular dependency with agent package
 	SwitchModel        func(value string) (oldModel string, err error)
 	SwitchChannel      func(value string) error
 	ClearHistory       func() error