init: 初始化 AssetX 项目仓库

包含 webapp（Next.js 用户端）、webapp-back（Go 后端）、
antdesign（管理后台）、landingpage（营销落地页）、
数据库 SQL 和配置文件。

webapp-back/common/test_helpers.go

@@ -0,0 +1,35 @@
+package common
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+// HeaderTokenMock adds authorization token to request header for testing
+func HeaderTokenMock(req *http.Request, u uint) {
+	req.Header.Set("Authorization", fmt.Sprintf("Token %v", GenToken(u)))
+}
+
+// ExtractTokenFromHeader extracts JWT token from Authorization header
+// Used for testing token extraction logic
+func ExtractTokenFromHeader(authHeader string) string {
+	if len(authHeader) > 6 && authHeader[:6] == "Token " {
+		return authHeader[6:]
+	}
+	return ""
+}
+
+// VerifyTokenClaims verifies a JWT token and returns claims for testing
+func VerifyTokenClaims(tokenString string) (jwt.MapClaims, error) {
+	token, err := jwt.ParseWithClaims(tokenString, jwt.MapClaims{}, func(token *jwt.Token) (interface{}, error) {
+		return []byte(JWTSecret), nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	return token.Claims.(jwt.MapClaims), nil
+}