Round6: 前台图片缩略图+下载/视频修复; 后台连接测试单次+自动消失; 导航重组; 存储中文化; 自动化去掉创建按钮; 短信验证码(注册/重置/充值通知)

backend/python/app/models.py

@@ -1103,3 +1103,16 @@ class MCPServer(Base):
     resources_count = Column(Integer, default=0)
     created_at = Column(DateTime, default=datetime.now)
     updated_at = Column(DateTime, default=datetime.now, onupdate=datetime.now)
+
+
+class SmsVerificationCode(Base):
+    __tablename__ = "sms_verification_codes"
+
+    id = Column(String(36), primary_key=True, default=gen_uuid)
+    phone = Column(String(20), nullable=False, index=True)
+    code = Column(String(10), nullable=False)
+    purpose = Column(String(30), nullable=False)  # register / reset_password
+    expires_at = Column(DateTime, nullable=False)
+    used = Column(Boolean, default=False)
+    created_at = Column(DateTime, default=datetime.now)
+