feat: 添加认证错误 i18n 翻译

- 添加常见认证错误代码的翻译（中英文）
- 修改 AuthForm 组件处理错误代码
- 支持的错误类型：
  - INVALID_USERNAME_OR_PASSWORD: 用户名或密码错误
  - USER_NOT_FOUND: 用户不存在
  - EMAIL_ALREADY_EXISTS: 邮箱已被注册
  - USERNAME_ALREADY_EXISTS: 用户名已被占用
  - WEAK_PASSWORD: 密码强度不够
  - INVALID_EMAIL: 邮箱格式不正确
  - VALIDATION_ERROR: 输入信息格式错误
  - NETWORK_ERROR: 网络连接失败
  - UNKNOWN_ERROR: 未知错误

Co-Authored-By: Claude <noreply@anthropic.com>

locales/en-US.json

@@ -181,7 +181,18 @@
         "loginFailed": "Login failed",
         "registerFailed": "Registration failed",
         "noAccountRegister": "No account? Register",
-        "haveAccountLogin": "Already have an account? Login"
+        "haveAccountLogin": "Already have an account? Login",
+        "errors": {
+            "INVALID_USERNAME_OR_PASSWORD": "Invalid username or password",
+            "USER_NOT_FOUND": "User not found",
+            "EMAIL_ALREADY_EXISTS": "Email already exists",
+            "USERNAME_ALREADY_EXISTS": "Username already taken",
+            "WEAK_PASSWORD": "Password is too weak",
+            "INVALID_EMAIL": "Invalid email format",
+            "VALIDATION_ERROR": "Validation error",
+            "NETWORK_ERROR": "Network connection failed",
+            "UNKNOWN_ERROR": "Unknown error, please try again later"
+        }
     }
 }
 

locales/zh-CN.json

@@ -181,7 +181,18 @@
         "loginFailed": "登录失败",
         "registerFailed": "注册失败",
         "noAccountRegister": "没有账号？去注册",
-        "haveAccountLogin": "已有账号？去登录"
+        "haveAccountLogin": "已有账号？去登录",
+        "errors": {
+            "INVALID_USERNAME_OR_PASSWORD": "用户名或密码错误",
+            "USER_NOT_FOUND": "用户不存在",
+            "EMAIL_ALREADY_EXISTS": "邮箱已被注册",
+            "USERNAME_ALREADY_EXISTS": "用户名已被占用",
+            "WEAK_PASSWORD": "密码强度不够",
+            "INVALID_EMAIL": "邮箱格式不正确",
+            "VALIDATION_ERROR": "输入信息格式错误",
+            "NETWORK_ERROR": "网络连接失败",
+            "UNKNOWN_ERROR": "未知错误，请稍后重试"
+        }
     }
 }