Refactor user handler and middleware for improved error handling and logging

- Consolidated user ID retrieval and permission checks into helper functions.
- Updated UserHandler to utilize BaseHandler for common database and configuration access.
- Enhanced logging for user-related operations, including login, registration, and password changes.
- Removed redundant context handling in middleware and improved readability.
- Introduced FileUtil for file URL generation and management, encapsulating file-related logic.
- Refactored FileRepo and UserRepo to streamline database operations and error handling.
- Deleted unused request_id middleware and integrated its functionality into request_logger.
- Removed legacy test runner script to simplify testing process.

internal/middleware/utils.go

@@ -4,6 +4,9 @@ import (
 	"fmt"
 
 	"github.com/gin-gonic/gin"
+	"github.com/limitcool/starter/internal/api/response"
+	"github.com/limitcool/starter/internal/pkg/errorx"
+	"github.com/limitcool/starter/internal/pkg/logger"
 )
 
 // GetUserID 从上下文中获取用户ID
@@ -64,3 +67,39 @@ func GetUserIDString(c *gin.Context) string {
 	}
 	return fmt.Sprintf("%d", id)
 }
+
+// CheckUserLogin 检查用户是否已登录，如果未登录则返回错误响应
+func CheckUserLogin(c *gin.Context) bool {
+	ctx := c.Request.Context()
+
+	_, exists := c.Get("user_id")
+	if !exists {
+		logger.WarnContext(ctx, "用户ID不存在")
+		response.Error(c, errorx.ErrUserNoLogin)
+		c.Abort()
+		return false
+	}
+
+	return true
+}
+
+// CheckAdminPermission 检查用户是否为管理员，如果不是则返回错误响应
+func CheckAdminPermission(c *gin.Context) bool {
+	ctx := c.Request.Context()
+
+	// 先检查是否已登录
+	if !CheckUserLogin(c) {
+		return false
+	}
+
+	// 检查用户是否为管理员
+	isAdmin, ok := c.Get("is_admin")
+	if !ok || !isAdmin.(bool) {
+		logger.WarnContext(ctx, "用户不是管理员", "is_admin", isAdmin)
+		response.Error(c, errorx.ErrUserNoLogin.WithMsg("用户无权限"))
+		c.Abort()
+		return false
+	}
+
+	return true
+}