Refactor localization files and remove Aliyun references

qwen3-tts-backend/api/auth.py

@@ -14,8 +14,8 @@ from core.security import (
     decode_access_token
 )
 from db.database import get_db
-from db.crud import get_user_by_username, get_user_by_email, create_user, change_user_password, get_user_preferences, update_user_preferences, can_user_use_local_model, can_user_use_nsfw, get_system_setting
-from schemas.user import User, UserCreate, Token, PasswordChange, AliyunKeyVerifyResponse, UserPreferences, UserPreferencesResponse
+from db.crud import get_user_by_username, get_user_by_email, create_user, change_user_password, get_user_preferences, update_user_preferences, can_user_use_nsfw, get_system_setting
+from schemas.user import User, UserCreate, Token, PasswordChange, UserPreferences, UserPreferencesResponse
 from schemas.audiobook import LLMConfigResponse
 
 router = APIRouter(prefix="/auth", tags=["authentication"])
@@ -155,31 +155,6 @@ async def change_password(
 
     return user
 
-@router.get("/aliyun-key/verify", response_model=AliyunKeyVerifyResponse)
-@limiter.limit("10/minute")
-async def verify_aliyun_key(
-    request: Request,
-    current_user: Annotated[User, Depends(get_current_user)],
-    db: Session = Depends(get_db)
-):
-    from core.security import decrypt_api_key
-    from core.tts_service import AliyunTTSBackend
-
-    encrypted = get_system_setting(db, "aliyun_api_key")
-    if not encrypted:
-        return AliyunKeyVerifyResponse(valid=False, message="No Aliyun API key configured")
-
-    api_key = decrypt_api_key(encrypted)
-    if not api_key:
-        return AliyunKeyVerifyResponse(valid=False, message="Failed to decrypt API key")
-
-    aliyun_backend = AliyunTTSBackend(api_key=api_key, region=settings.ALIYUN_REGION)
-    health = await aliyun_backend.health_check()
-
-    if health.get("available", False):
-        return AliyunKeyVerifyResponse(valid=True, message="Aliyun API key is valid and working")
-    return AliyunKeyVerifyResponse(valid=False, message="Aliyun API key is not working.")
-
 @router.get("/preferences", response_model=UserPreferencesResponse)
 @limiter.limit("30/minute")
 async def get_preferences(
@@ -189,14 +164,10 @@ async def get_preferences(
 ):
     prefs = get_user_preferences(db, current_user.id)
 
-    available_backends = ["aliyun"]
-    if can_user_use_local_model(current_user):
-        available_backends.append("local")
-
     return {
-        "default_backend": prefs.get("default_backend", "aliyun"),
+        "default_backend": "local",
         "onboarding_completed": prefs.get("onboarding_completed", False),
-        "available_backends": available_backends
+        "available_backends": ["local"]
     }
 
 @router.put("/preferences")
@@ -207,13 +178,6 @@ async def update_preferences(
     current_user: Annotated[User, Depends(get_current_user)],
     db: Session = Depends(get_db)
 ):
-    if preferences.default_backend == "local":
-        if not can_user_use_local_model(current_user):
-            raise HTTPException(
-                status_code=status.HTTP_403_FORBIDDEN,
-                detail="Local model is not available. Please contact administrator."
-            )
-
     updated_user = update_user_preferences(
         db,
         current_user.id,