feat: 后端工具和 MCP 模块更新

- main.go: 更新工作空间目录，添加 MCP 模型迁移
- tool.go: 添加 description_cn 字段
- auth_service, tool_service: 优化
- 更新 Swagger 文档

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/internal/service/auth_service.go

@@ -193,8 +193,8 @@ func (s *AuthService) createUserWorkspace(username string) error {
 		return err
 	}
 
-	// 创建子目录
-	subDirs := []string{"projects", "files", "temp"}
+	// 创建子目录: skills(技能), scripts(脚本), sandbox(沙盒), files(文件), temp(临时)
+	subDirs := []string{"skills", "scripts", "sandbox", "files", "temp"}
 	for _, dir := range subDirs {
 		if err := os.MkdirAll(filepath.Join(workspacePath, dir), 0755); err != nil {
 			return err

server/internal/service/tool_service.go

@@ -58,12 +58,12 @@ func (s *ToolService) DeleteTool(id string) error {
 func (s *ToolService) InitDefaultTools() error {
 	log.Println("[ToolService] Starting init default tools...")
 
-	// 获取默认工具
-	tools := s.getDefaultTools()
-
 	// 删除现有的系统工具，重新插入
 	s.toolRepo.DB().Where("provider = ?", "system").Delete(&model.Tool{})
-	log.Printf("[ToolService] Deleted existing system tools, inserting %d default tools...", len(tools))
+
+	// 插入默认工具
+	tools := s.getDefaultTools()
+	log.Printf("[ToolService] Inserting %d default tools...", len(tools))
 
 	for _, tool := range tools {
 		if err := s.toolRepo.Create(&tool); err != nil {
@@ -83,6 +83,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "read_file",
 			Description:     "Read the contents of a file from the filesystem.",
+			DescriptionCN:   "读取文件系统的文件内容。",
 			Category:        "file",
 			SecurityLevel:   "safe",
 			RequireApproval: false,
@@ -93,6 +94,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "write_file",
 			Description:     "Write content to a file. Creates the file if it doesn't exist, overwrites if it does.",
+			DescriptionCN:   "写入内容到文件。如果文件不存在则创建，存在则覆盖。",
 			Category:        "file",
 			SecurityLevel:   "review",
 			RequireApproval: true,
@@ -103,6 +105,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "list_dir",
 			Description:     "List the contents of a directory.",
+			DescriptionCN:   "列出目录的内容。",
 			Category:        "file",
 			SecurityLevel:   "safe",
 			RequireApproval: false,
@@ -113,6 +116,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "delete_file",
 			Description:     "Delete a file or directory.",
+			DescriptionCN:   "删除文件或目录。",
 			Category:        "file",
 			SecurityLevel:   "danger",
 			RequireApproval: true,
@@ -123,6 +127,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "search_files",
 			Description:     "Search for files by name pattern or content.",
+			DescriptionCN:   "按文件名模式或内容搜索文件。",
 			Category:        "file",
 			SecurityLevel:   "safe",
 			RequireApproval: false,
@@ -134,6 +139,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "execute_python",
 			Description:     "Execute Python code in a sandboxed environment.",
+			DescriptionCN:   "在沙盒环境中执行Python代码。",
 			Category:        "executor",
 			SecurityLevel:   "review",
 			RequireApproval: true,
@@ -144,6 +150,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "execute_javascript",
 			Description:     "Execute JavaScript code in a sandboxed environment.",
+			DescriptionCN:   "在沙盒环境中执行JavaScript代码。",
 			Category:        "executor",
 			SecurityLevel:   "review",
 			RequireApproval: true,
@@ -154,6 +161,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "execute_bash",
 			Description:     "Execute a bash command in a sandboxed environment.",
+			DescriptionCN:   "在沙盒环境中执行Bash命令。",
 			Category:        "executor",
 			SecurityLevel:   "danger",
 			RequireApproval: true,
@@ -165,6 +173,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "web_fetch",
 			Description:     "Fetch content from a web URL.",
+			DescriptionCN:   "从网页URL获取内容。",
 			Category:        "web",
 			SecurityLevel:   "safe",
 			RequireApproval: false,
@@ -175,6 +184,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "web_search",
 			Description:     "Search the web for information.",
+			DescriptionCN:   "在网络上搜索信息。",
 			Category:        "web",
 			SecurityLevel:   "safe",
 			RequireApproval: false,
@@ -186,6 +196,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "http_request",
 			Description:     "Make HTTP requests to APIs.",
+			DescriptionCN:   "向API发送HTTP请求。",
 			Category:        "http",
 			SecurityLevel:   "safe",
 			RequireApproval: false,
@@ -197,6 +208,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "send_notification",
 			Description:     "Send notifications via email, webhook, dingtalk, or slack.",
+			DescriptionCN:   "通过邮件、webhook、钉钉或Slack发送通知。",
 			Category:        "notification",
 			SecurityLevel:   "safe",
 			RequireApproval: false,
@@ -208,6 +220,7 @@ func (s *ToolService) getDefaultTools() []model.Tool {
 		{
 			Name:            "get_current_time",
 			Description:     "Get the current date and time.",
+			DescriptionCN:   "获取当前日期和时间。",
 			Category:        "system",
 			SecurityLevel:   "safe",
 			RequireApproval: false,