feat: add anthropic>=0.40.0 and openai>=1.0.0 to requirements (#105)

requirements.txt

@@ -7,6 +7,10 @@ uvicorn[standard]>=0.23.0
 pydantic>=2.0.0
 httpx>=0.24.0
 websockets>=11.0
+openai>=1.0.0
+
+# Anthropic Claude API
+anthropic>=0.40.0
 
 # Deck Builder dependencies
 requests>=2.31.0