refac: switch to meta and params, remove source

backend/apps/openai/main.py

@@ -52,9 +52,7 @@ app.state.config = AppConfig()
 
 app.state.config.ENABLE_MODEL_FILTER = ENABLE_MODEL_FILTER
 app.state.config.MODEL_FILTER_LIST = MODEL_FILTER_LIST
-app.state.MODEL_CONFIG = [
-    model.to_form() for model in Models.get_all_models_by_source("openai")
-]
+app.state.MODEL_CONFIG = Models.get_all_models()
 
 
 app.state.config.ENABLE_OPENAI_API = ENABLE_OPENAI_API