Refactor AIAgent runtime handling and remove unused fields

internal/pkg/dto/response/ai_response.go

@@ -91,8 +91,6 @@ type AIAgentResponse struct {
 	Skills              []AIAgentSkillResponse          `json:"skills"`
 	DirectTools         []AIAgentMCPToolResponse        `json:"directTools"`
 	GraphTools          []string                        `json:"graphTools"`
-	RuntimeMode         enums.AIAgentRuntimeMode        `json:"runtimeMode"`
-	RuntimeModeName     string                          `json:"runtimeModeName"`
 	WorkflowVersionID   int64                           `json:"workflowVersionId"`
 	SortNo              int                             `json:"sortNo"`
 	CreatedAt           string                          `json:"createdAt"`

internal/pkg/enums/ai.go

@@ -31,24 +31,3 @@ var aiModelTypeLabelMap = map[AIModelType]string{
 func GetAIModelTypeLabel(modelType AIModelType) string {
 	return aiModelTypeLabelMap[modelType]
 }
-
-type AIAgentRuntimeMode int
-
-const (
-	AIAgentRuntimeModeBuiltinGraph AIAgentRuntimeMode = 1
-	AIAgentRuntimeModeWorkflow     AIAgentRuntimeMode = 2
-)
-
-var AIAgentRuntimeModeValues = []AIAgentRuntimeMode{
-	AIAgentRuntimeModeBuiltinGraph,
-	AIAgentRuntimeModeWorkflow,
-}
-
-var aiAgentRuntimeModeLabelMap = map[AIAgentRuntimeMode]string{
-	AIAgentRuntimeModeBuiltinGraph: "内置 Graph",
-	AIAgentRuntimeModeWorkflow:     "会话流程",
-}
-
-func GetAIAgentRuntimeModeLabel(mode AIAgentRuntimeMode) string {
-	return aiAgentRuntimeModeLabelMap[mode]
-}