feat: 后端认证和工具模块更新

- main.go: 添加 Swagger 文档、初始化默认管理员
- 认证模块: 完善用户角色管理
- 新增工具模块: tool_handler, tool_repo, tool_service, tool model
- 更新 go.mod 依赖

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

server/internal/service/auth_service.go

@@ -1,7 +1,12 @@
 package service
 
 import (
+	"encoding/json"
 	"errors"
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
 	"time"
 
 	"x-agents/server/internal/model"
@@ -123,10 +128,11 @@ func (s *AuthService) Register(username, password, email string) (*model.User, e
 	role, err := s.userRepo.FindRoleByID(user.RoleID)
 	if err != nil {
 		// 创建默认角色
+		perms, _ := json.Marshal([]int{int(model.PermissionRead), int(model.PermissionWrite)})
 		role = &model.Role{
 			ID:          "user",
 			Name:        "user",
-			Permissions: []model.PermissionLevel{model.PermissionRead, model.PermissionWrite},
+			Permissions: string(perms),
 		}
 		s.userRepo.CreateRole(role)
 		user.Role = role
@@ -136,10 +142,74 @@ func (s *AuthService) Register(username, password, email string) (*model.User, e
 		return nil, err
 	}
 
+	// 创建用户工作空间目录
+	if err := s.createUserWorkspace(username); err != nil {
+		// 工作空间创建失败不影响注册成功，仅记录日志
+		println("Warning: failed to create user workspace:", err.Error())
+	}
+
 	return user, nil
 }
 
+// createUserWorkspace 创建用户工作空间目录
+func (s *AuthService) createUserWorkspace(username string) error {
+	// 获取当前可执行文件所在目录
+	execPath, err := os.Getwd()
+	if err != nil {
+		return err
+	}
+
+	// 尝试多种方式获取项目根目录
+	projectRoot := execPath
+
+	// 方式1: 如果当前目录名为 server，向上找一级
+	baseName := filepath.Base(execPath)
+	// 处理 Windows 和 Unix 风格路径
+	if baseName == "server" || strings.HasSuffix(execPath, "/server") || strings.HasSuffix(execPath, "\\server") {
+		projectRoot = filepath.Dir(execPath)
+	}
+
+	// 方式2: 尝试向上查找包含 .git 或 package.json 的目录
+	if _, err := os.Stat(filepath.Join(projectRoot, ".git")); os.IsNotExist(err) {
+		// 继续向上查找
+		for i := 0; i < 3; i++ {
+			parent := filepath.Dir(projectRoot)
+			if parent == projectRoot {
+				break
+			}
+			if _, err := os.Stat(filepath.Join(parent, ".git")); err == nil {
+				projectRoot = parent
+				break
+			}
+			projectRoot = parent
+		}
+	}
+
+	log.Printf("[Workspace] Creating workspace at: %s", filepath.Join(projectRoot, "account", username))
+
+	// 创建 account 目录和用户目录
+	workspacePath := filepath.Join(projectRoot, "account", username)
+	if err := os.MkdirAll(workspacePath, 0755); err != nil {
+		return err
+	}
+
+	// 创建子目录
+	subDirs := []string{"projects", "files", "temp"}
+	for _, dir := range subDirs {
+		if err := os.MkdirAll(filepath.Join(workspacePath, dir), 0755); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
 // GetUserByID 根据ID获取用户
 func (s *AuthService) GetUserByID(id string) (*model.User, error) {
 	return s.userRepo.FindByID(id)
 }
+
+// GetAllUsers 获取所有用户
+func (s *AuthService) GetAllUsers() ([]model.User, error) {
+	return s.userRepo.FindAll()
+}