feat: Enhance AI Agent and Channel Management

- Updated labels in the AI Agents dashboard for clarity, changing "流程状态" to "Playbook 状态" and "未发布流程" to "未发布 Playbook".
- Introduced AI Agent rollout percentage management in channel editing, allowing users to set and rollback rollout percentages.
- Added new API endpoints for rolling back AI Agent rollout and fetching agent run metrics.
- Implemented new UI components for displaying agent run details, including status, duration, and input/output tokens.
- Enhanced type definitions for AdminChannel and AIAgent to include rollout percentages and runtime modes.
- Updated navigation to include a section for agent runs.
- Added new translations for agent run features in both English and Chinese.

internal/handlers/dashboard/ai_agent_handler_test.go

@@ -4,6 +4,7 @@ import (
 	"testing"
 
 	"agent-desk/internal/models"
+	"agent-desk/internal/pkg/enums"
 
 	"github.com/glebarez/sqlite"
 	"github.com/mlogclub/simple/sqls"
@@ -14,6 +15,9 @@ func TestBuildAIAgentResponseExposesWorkflowPublishState(t *testing.T) {
 	setupAIAgentHandlerTestDB(t)
 
 	draft := buildAIAgentResponse(&models.AIAgent{})
+	if draft.RuntimeMode != enums.AIAgentRuntimeModeWorkflow {
+		t.Fatalf("draft.RuntimeMode = %q, want %q", draft.RuntimeMode, enums.AIAgentRuntimeModeWorkflow)
+	}
 	if draft.WorkflowPublished {
 		t.Fatalf("draft.WorkflowPublished = true, want false")
 	}
@@ -34,6 +38,11 @@ func TestBuildAIAgentResponseExposesWorkflowPublishState(t *testing.T) {
 	if published.WorkflowStateText == "" {
 		t.Fatalf("expected published workflow state text")
 	}
+
+	rollout := buildAIAgentResponse(&models.AIAgent{RolloutPercent: 20, PreviousRolloutPercent: 100})
+	if rollout.RolloutPercent != 20 || rollout.PreviousRolloutPercent != 100 {
+		t.Fatalf("unexpected rollout response: %#v", rollout)
+	}
 }
 
 func setupAIAgentHandlerTestDB(t *testing.T) {