feat: add default workflow definition endpoint and related functionality

internal/bootstrap/routes.go

@@ -230,6 +230,7 @@ func registerDashboardAIAgentRoutes(group *gin.RouterGroup) {
 
 func registerDashboardAIWorkflowRoutes(group *gin.RouterGroup) {
 	group.GET("/node-spec/list", dashboard.AIWorkflowGetNodeSpecList)
+	group.GET("/default-definition", dashboard.AIWorkflowGetDefaultDefinition)
 	group.POST("/validate", dashboard.AIWorkflowPostValidate)
 	group.Any("/run/list", dashboard.AIWorkflowAnyRunList)
 	group.GET("/run/:id", dashboard.AIWorkflowGetRunBy)

internal/bootstrap/server_route_test.go

@@ -41,6 +41,7 @@ func TestNewServerRegistersGinRoutes(t *testing.T) {
 		http.MethodGet + " /api/dashboard/user/:id",
 		http.MethodPost + " /api/dashboard/user/create",
 		http.MethodPost + " /api/dashboard/conversation/send_message",
+		http.MethodGet + " /api/dashboard/ai-workflow/default-definition",
 		http.MethodGet + " /api/dashboard/ai-workflow/run/list",
 		http.MethodGet + " /api/dashboard/ai-workflow/run/:id",
 		http.MethodGet + " /api/ws/dashboard",

internal/handlers/dashboard/ai_workflow_handler.go

@@ -108,6 +108,14 @@ func AIWorkflowGetNodeSpecList(ctx *gin.Context) {
 	httpx.WriteJSON(ctx, builders.BuildAIWorkflowNodeSpecs(services.AIWorkflowService.ListNodeSpecs()))
 }
 
+func AIWorkflowGetDefaultDefinition(ctx *gin.Context) {
+	if _, err := services.AuthService.RequirePermission(ctx, constants.PermissionAIAgentView); err != nil {
+		httpx.WriteJSON(ctx, err)
+		return
+	}
+	httpx.WriteJSON(ctx, services.AIWorkflowService.DefaultAgentWorkflowDefinition())
+}
+
 func AIWorkflowPostValidate(ctx *gin.Context) {
 	if _, err := services.AuthService.RequirePermission(ctx, constants.PermissionAIAgentView); err != nil {
 		httpx.WriteJSON(ctx, err)

internal/services/ai_agent_workflow_service_test.go

@@ -82,6 +82,26 @@ func TestAIAgentServiceCreatesDefaultWorkflow(t *testing.T) {
 	}
 }
 
+func TestAIWorkflowServiceDefaultAgentWorkflowDefinitionIsValid(t *testing.T) {
+	definition := AIWorkflowService.DefaultAgentWorkflowDefinition()
+	if definition.EntryNodeID == "" {
+		t.Fatalf("expected default workflow definition")
+	}
+	validation := workflowvalidator.ValidateDefinition(definition, workflowregistry.DefaultRegistry())
+	if !validation.Valid {
+		t.Fatalf("expected default workflow definition to be valid, got %#v", validation.Errors)
+	}
+	if nodeTypeByID(definition, "route_intent_1") != workflowregistry.NodeTypeCondition {
+		t.Fatalf("expected default workflow to include intent router, got nodes: %#v", definition.Nodes)
+	}
+	if !workflowHasNodeType(definition, workflowregistry.NodeTypeHandoffToHuman) {
+		t.Fatalf("expected default workflow to include human handoff node")
+	}
+	if !workflowHasNodeType(definition, workflowregistry.NodeTypeCreateTicket) {
+		t.Fatalf("expected default workflow to include ticket creation node")
+	}
+}
+
 func TestAIWorkflowServicePublishAgentWorkflowBindsAgentVersion(t *testing.T) {
 	setupAIAgentWorkflowTestDB(t)
 	operator := aiAgentWorkflowTestOperator()

internal/services/ai_workflow_service.go

@@ -190,6 +190,10 @@ func (s *aiWorkflowService) ListNodeSpecs() []workflowregistry.NodeSpec {
 	return s.registry.List()
 }
 
+func (s *aiWorkflowService) DefaultAgentWorkflowDefinition() dsl.Definition {
+	return defaultAgentWorkflowDefinition()
+}
+
 func (s *aiWorkflowService) ValidateDefinition(def dsl.Definition) workflowvalidator.Result {
 	return workflowvalidator.ValidateDefinition(def, s.registry)
 }