Add LLM configuration options and update deployment workflow

- Introduced new API keys for Anthropic and Google in .env.example and settings.py
- Updated llm.py to retrieve API keys directly from settings
- Modified deploy.yaml to streamline code checkout and improve deployment process

app/config/settings.py

@@ -24,6 +24,8 @@ class Settings(BaseSettings):
     QDRANT_API_KEY: str = ""
 
     OPENAI_API_KEY: str = ""
+    ANTHROPIC_API_KEY: str = ""
+    GOOGLE_API_KEY: str = ""
 
     LLM_MODEL: str = "gpt-4o"
     LLM_ROUTER_MODEL: str = "gpt-4o-mini"