Refactor AI Agent and AI Config handling across multiple files

- Updated function signatures to accept AI Agent and AI Config as non-pointer types for better clarity and safety.
- Modified instances where AI Agent and AI Config were dereferenced to improve code readability.
- Removed unnecessary nil checks for AI Agent and AI Config, simplifying the logic.
- Adjusted related tests and services to align with the new function signatures.
- Cleaned up code in runtime, skills, and executor packages to ensure consistency in handling AI configurations.

internal/ai/runtime/internal/impl/factory/agent_factory.go

@@ -31,9 +31,9 @@ type AgentFactory struct {
 // 3. 后续扩展装配项时继续拉长函数签名。
 type BuildCustomerServiceAgentInput struct {
 	// AIAgent 为当前运行的业务 Agent 配置，提供名称、描述、系统提示词等基础信息。
-	AIAgent *models.AIAgent
+	AIAgent models.AIAgent
 	// AIConfig 为模型配置，决定底层使用哪个 ChatModel。
-	AIConfig *models.AIConfig
+	AIConfig models.AIConfig
 	// SelectedSkill 为当前命中的技能；为空表示本次运行未命中专项技能。
 	SelectedSkill *models.SkillDefinition
 	// InstructionToolDefinitions 用于生成 instruction 中的工具说明。
@@ -63,9 +63,6 @@ func NewAgentFactory() *AgentFactory {
 
 // BuildCustomerServiceAgent 根据装配输入构建客服 ChatModelAgent。
 func (f *AgentFactory) BuildCustomerServiceAgent(ctx context.Context, input BuildCustomerServiceAgentInput) (*einoagents.CustomerServiceAgent, error) {
-	if input.AIAgent == nil || input.AIConfig == nil {
-		return nil, nil
-	}
 	chatModel, err := f.chatModelFactory.Build(ctx, input.AIConfig)
 	if err != nil {
 		return nil, err

internal/ai/runtime/internal/impl/factory/chat_model_factory.go

@@ -18,27 +18,24 @@ func NewChatModelFactory() *ChatModelFactory {
 	return &ChatModelFactory{}
 }
 
-func (f *ChatModelFactory) Build(ctx context.Context, item *models.AIConfig) (model.ToolCallingChatModel, error) {
-	if item == nil {
-		return nil, nil
-	}
+func (f *ChatModelFactory) Build(ctx context.Context, aiConfig models.AIConfig) (model.ToolCallingChatModel, error) {
 	conf := &openai.ChatModelConfig{
-		APIKey:  strings.TrimSpace(item.APIKey),
-		BaseURL: strings.TrimSpace(item.BaseURL),
-		Model:   strings.TrimSpace(item.ModelName),
+		APIKey:  strings.TrimSpace(aiConfig.APIKey),
+		BaseURL: strings.TrimSpace(aiConfig.BaseURL),
+		Model:   strings.TrimSpace(aiConfig.ModelName),
 	}
-	if item.TimeoutMS > 0 {
-		conf.Timeout = time.Duration(item.TimeoutMS) * time.Millisecond
+	if aiConfig.TimeoutMS > 0 {
+		conf.Timeout = time.Duration(aiConfig.TimeoutMS) * time.Millisecond
 	}
-	if item.MaxOutputTokens > 0 {
-		maxCompletionTokens := item.MaxOutputTokens
+	if aiConfig.MaxOutputTokens > 0 {
+		maxCompletionTokens := aiConfig.MaxOutputTokens
 		conf.MaxCompletionTokens = &maxCompletionTokens
 	}
-	if item.Provider == enums.AIProviderOpenAI && isAzureOpenAIBaseURL(item.BaseURL) {
+	if aiConfig.Provider == enums.AIProviderOpenAI && isAzureOpenAIBaseURL(aiConfig.BaseURL) {
 		conf.ByAzure = true
 		conf.APIVersion = "2024-06-01"
 	}
-	if extraFields := providerExtraFields(item); len(extraFields) > 0 {
+	if extraFields := providerExtraFields(aiConfig); len(extraFields) > 0 {
 		conf.ExtraFields = extraFields
 	}
 	return openai.NewChatModel(ctx, conf)
@@ -49,12 +46,9 @@ func isAzureOpenAIBaseURL(baseURL string) bool {
 	return strings.Contains(baseURL, ".openai.azure.com")
 }
 
-func providerExtraFields(item *models.AIConfig) map[string]any {
-	if item == nil {
-		return nil
-	}
-	baseURL := strings.ToLower(strings.TrimSpace(item.BaseURL))
-	modelName := strings.ToLower(strings.TrimSpace(item.ModelName))
+func providerExtraFields(aiConfig models.AIConfig) map[string]any {
+	baseURL := strings.ToLower(strings.TrimSpace(aiConfig.BaseURL))
+	modelName := strings.ToLower(strings.TrimSpace(aiConfig.ModelName))
 	if strings.Contains(baseURL, "dashscope.aliyuncs.com") && strings.HasPrefix(modelName, "qwen3") {
 		return map[string]any{
 			"enable_thinking": false,

internal/ai/runtime/internal/impl/factory/tool_factory.go

@@ -20,10 +20,7 @@ func NewToolFactory() *ToolFactory {
 	return &ToolFactory{}
 }
 
-func (f *ToolFactory) BuildMCPTools(aiAgent *models.AIAgent) ([]runtimetooling.MCPToolDefinition, error) {
-	if aiAgent == nil || strings.TrimSpace(aiAgent.AllowedMCPTools) == "" {
-		return nil, nil
-	}
+func (f *ToolFactory) BuildMCPTools(aiAgent models.AIAgent) ([]runtimetooling.MCPToolDefinition, error) {
 	raw, err := toolx.ParseAgentMCPToolsJSON(aiAgent.AllowedMCPTools)
 	if err != nil {
 		return nil, err
@@ -56,7 +53,7 @@ func (f *ToolFactory) BuildMCPTools(aiAgent *models.AIAgent) ([]runtimetooling.M
 	return ret, nil
 }
 
-func (f *ToolFactory) BuildBaseTools(ctx context.Context, aiAgent *models.AIAgent) ([]einotool.BaseTool, error) {
+func (f *ToolFactory) BuildBaseTools(ctx context.Context, aiAgent models.AIAgent) ([]einotool.BaseTool, error) {
 	definitions, err := f.BuildMCPTools(aiAgent)
 	if err != nil {
 		return nil, err

internal/ai/runtime/internal/impl/factory/tool_factory_test.go

@@ -7,7 +7,7 @@ import (
 )
 
 func TestBuildMCPToolsSkipsGraphAndBuiltinTools(t *testing.T) {
-	aiAgent := &models.AIAgent{
+	aiAgent := models.AIAgent{
 		AllowedMCPTools: `[
 			{"toolCode":"graph/create_ticket_with_confirmation","serverCode":"graph","toolName":"create_ticket_with_confirmation"},
 			{"toolCode":"builtin/tool_search","serverCode":"builtin","toolName":"tool_search"},