新增KEYCLOAK_AUDIENCE，解决前后端认证失败的问题

app/core/config.py

@@ -1,4 +1,5 @@
-from pydantic_settings import BaseSettings
+from pathlib import Path
+from pydantic_settings import BaseSettings, SettingsConfigDict
 
 
 class Settings(BaseSettings):
@@ -55,6 +56,7 @@ class Settings(BaseSettings):
     # Keycloak JWT (optional override)
     KEYCLOAK_PUBLIC_KEY: str = ""
     KEYCLOAK_ALGORITHM: str = "RS256"
+    KEYCLOAK_AUDIENCE: str = ""
 
     @property
     def SQLALCHEMY_DATABASE_URI(self) -> str:
@@ -67,9 +69,10 @@ class Settings(BaseSettings):
             f"@{self.METADATA_DB_HOST}:{self.METADATA_DB_PORT}/{self.METADATA_DB_NAME}"
         )
 
-    class Config:
-        env_file = ".env"
-        extra = "ignore"
+    model_config = SettingsConfigDict(
+        env_file=Path(__file__).resolve().parents[2] / ".env",
+        extra="ignore",
+    )
 
 
 settings = Settings()