feat: add default language configuration

domain/config/api.py

@@ -13,6 +13,7 @@ from .types import ConfigItem
 router = APIRouter(prefix="/api/config", tags=["config"])
 
 PUBLIC_CONFIG_KEYS = [
+    "APP_DEFAULT_LANGUAGE",
     "THEME_MODE",
     "THEME_PRIMARY_COLOR",
     "THEME_BORDER_RADIUS",
@@ -56,6 +57,7 @@ async def get_all_config(
     configs = await ConfigService.get_all()
     return success(configs)
 
+
 @router.get("/public")
 @audit(action=AuditAction.READ, description="获取公开配置")
 async def get_public_config(

domain/config/service.py

@@ -80,6 +80,7 @@ class ConfigService:
             logo=logo,
             favicon=favicon,
             is_initialized=user_count > 0,
+            default_language=await cls.get("APP_DEFAULT_LANGUAGE", "zh"),
             app_domain=await cls.get("APP_DOMAIN"),
             file_domain=await cls.get("FILE_DOMAIN"),
         )

domain/config/types.py

@@ -14,6 +14,7 @@ class SystemStatus(BaseModel):
     logo: str
     favicon: str
     is_initialized: bool
+    default_language: str = "zh"
     app_domain: Optional[str] = None
     file_domain: Optional[str] = None