refactor: Update service and repository methods to use context

- Refactored multiple service and repository methods to accept context as a parameter, enhancing consistency and enabling better control over request lifecycles.
- Updated handlers to utilize context in method calls, improving error handling and performance.
- Cleaned up Dockerfile by removing unnecessary whitespace.

internal/middleware/auth.go

@@ -1,6 +1,7 @@
 package middleware
 
 import (
+	"carrotskin/internal/model"
 	"net/http"
 	"strings"
 
@@ -9,17 +10,16 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
-// AuthMiddleware JWT认证中间件
-func AuthMiddleware() gin.HandlerFunc {
+// AuthMiddleware JWT认证中间件（注入JWT服务版本）
+func AuthMiddleware(jwtService *auth.JWTService) gin.HandlerFunc {
 	return gin.HandlerFunc(func(c *gin.Context) {
-		jwtService := auth.MustGetJWTService()
-		
 		authHeader := c.GetHeader("Authorization")
 		if authHeader == "" {
-			c.JSON(http.StatusUnauthorized, gin.H{
-				"code":    401,
-				"message": "缺少Authorization头",
-			})
+			c.JSON(http.StatusUnauthorized, model.NewErrorResponse(
+				model.CodeUnauthorized,
+				"缺少Authorization头",
+				nil,
+			))
 			c.Abort()
 			return
 		}
@@ -27,10 +27,11 @@ func AuthMiddleware() gin.HandlerFunc {
 		// Bearer token格式
 		tokenParts := strings.SplitN(authHeader, " ", 2)
 		if len(tokenParts) != 2 || tokenParts[0] != "Bearer" {
-			c.JSON(http.StatusUnauthorized, gin.H{
-				"code":    401,
-				"message": "无效的Authorization头格式",
-			})
+			c.JSON(http.StatusUnauthorized, model.NewErrorResponse(
+				model.CodeUnauthorized,
+				"无效的Authorization头格式",
+				nil,
+			))
 			c.Abort()
 			return
 		}
@@ -38,10 +39,11 @@ func AuthMiddleware() gin.HandlerFunc {
 		token := tokenParts[1]
 		claims, err := jwtService.ValidateToken(token)
 		if err != nil {
-			c.JSON(http.StatusUnauthorized, gin.H{
-				"code":    401,
-				"message": "无效的token",
-			})
+			c.JSON(http.StatusUnauthorized, model.NewErrorResponse(
+				model.CodeUnauthorized,
+				"无效的token",
+				err,
+			))
 			c.Abort()
 			return
 		}
@@ -55,11 +57,9 @@ func AuthMiddleware() gin.HandlerFunc {
 	})
 }
 
-// OptionalAuthMiddleware 可选的JWT认证中间件
-func OptionalAuthMiddleware() gin.HandlerFunc {
+// OptionalAuthMiddleware 可选的JWT认证中间件（注入JWT服务版本）
+func OptionalAuthMiddleware(jwtService *auth.JWTService) gin.HandlerFunc {
 	return gin.HandlerFunc(func(c *gin.Context) {
-		jwtService := auth.MustGetJWTService()
-		
 		authHeader := c.GetHeader("Authorization")
 		if authHeader != "" {
 			tokenParts := strings.SplitN(authHeader, " ", 2)