基本能力编写完成

internal/api/handlers/response.go

@@ -0,0 +1,32 @@
+package handlers
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+// Response 统一响应结构
+type Response struct {
+	Code    int         `json:"code"`
+	Message string      `json:"message"`
+	Data    interface{} `json:"data"`
+}
+
+// respondJSON 返回JSON响应
+func respondJSON(w http.ResponseWriter, statusCode, code int, message string, data interface{}) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(statusCode)
+	
+	resp := Response{
+		Code:    code,
+		Message: message,
+		Data:    data,
+	}
+	
+	json.NewEncoder(w).Encode(resp)
+}
+
+// respondError 返回错误响应
+func respondError(w http.ResponseWriter, statusCode, code int, message string) {
+	respondJSON(w, statusCode, code, message, nil)
+}