feat: 添加系统配置，更新验证码接口

schemas/login.py

@@ -114,14 +114,16 @@ class GetCaptchaResult(BaseModel):
     """
     获取验证码结果模型
     """
-    uuid: str = Field(default="", description="验证码UUID")
-    captcha: str = Field(default="", description="验证码图片")
+    uuid: Optional[str] = Field(default=None, description="验证码UUID")
+    captcha: Optional[str] = Field(default=None, description="验证码图片")
+    captcha_enabled: Optional[bool] = Field(default=False, description="是否开启验证码")
 
     class Config:
         json_schema_extra = {
             "example": {
                 "uuid": "1234567890",
-                "captcha": "base64编码的图片"
+                "captcha": "base64编码的图片",
+                "captcha_enabled": True
             }
         }
 
@@ -130,7 +132,7 @@ class GetEmailCodeParams(BaseModel):
     """
     获取邮箱验证码请求模型
     """
-    username:str=Field(default="", description="用户名")
+    username: str = Field(default="", description="用户名")
     title: str = Field(default="注册", description="邮件类型")
     mail: str = Field(default="", description="邮箱地址")