fix: 上传200MB限制、备案信息、超级管理员仅首注、文件管理菜单

Made-with: Cursor

server/handlers/register.go

@@ -179,12 +179,21 @@ func Register(c *gin.Context) {
 		}
 	}
 
+	// 超级管理员仅一个：第一个注册用户为超级管理员，后续均为普通用户
+	count, _ := coll.CountDocuments(ctx, bson.M{})
+	roleID := models.RoleIDUser
+	role := "user"
+	if count == 0 {
+		roleID = models.RoleIDSuperAdmin
+		role = "admin"
+	}
+
 	doc := bson.M{
 		"username": username,
 		"mobile":   input.Mobile,
 		"password": utils.HashPassword(input.Password),
-		"role":     "admin",
-		"role_id":  models.RoleIDSuperAdmin,
+		"role":     role,
+		"role_id":  roleID,
 	}
 	if input.Email != "" {
 		doc["email"] = input.Email