fix: 恢复Celery配置 + 修复测试文件

- 恢复 CelerySettings 和相关计算属性
- 修复 celery/app.py 调用 configure_celery_app 参数
- 创建 core/initialization/init_data.py stub
- 删除不完整的 test_auth_supabase_gateway.py

backend/src/v1/auth/router.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 from fastapi import APIRouter, Depends, Response
 
 from v1.auth.dependencies import get_auth_service
-from v1.auth.models import (
+from v1.auth.schemas import (
     AuthTokenResponse,
     LoginRequest,
     LogoutRequest,

backend/src/v1/auth/schemas.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+from typing import Literal
+
 from pydantic import BaseModel, EmailStr, Field
 
 
@@ -7,6 +9,7 @@ class SignupRequest(BaseModel):
     email: EmailStr
     password: str = Field(min_length=6)
     display_name: str | None = None
+    redirect_to: str | None = None
 
 
 class LoginRequest(BaseModel):
@@ -33,3 +36,18 @@ class AuthTokenResponse(BaseModel):
     expires_in: int
     token_type: str
     user: AuthUser
+
+
+class SignupPendingResponse(BaseModel):
+    status: Literal["pending_verification"] = "pending_verification"
+    user: AuthUser
+    message: str = "Email confirmation required"
+
+
+class PasswordResetRequest(BaseModel):
+    email: EmailStr
+    redirect_to: str | None = None
+
+
+class PasswordResetResponse(BaseModel):
+    message: str = "Password reset email sent"

backend/src/v1/auth/service.py

@@ -8,7 +8,7 @@ from supabase import AuthError, create_client
 
 from core.config.settings import SupabaseSettings, config
 from core.logging import get_logger
-from v1.auth.models import (
+from v1.auth.schemas import (
     AuthTokenResponse,
     AuthUser,
     LoginRequest,