prepare for vercel

.gitignore

@@ -11,3 +11,4 @@ wheels/
 
 credentials.json
 .env
+.vercel

requirements.txt

@@ -0,0 +1,32 @@
+annotated-doc==0.0.4
+annotated-types==0.7.0
+anyio==4.12.1
+certifi==2026.1.4
+charset-normalizer==3.4.4
+click==8.3.1
+distro==1.9.0
+fastapi==0.128.0
+fastapi-sse==1.1.1
+google-auth==2.47.0
+google-genai==1.59.0
+h11==0.16.0
+httpcore==1.0.9
+httpx==0.28.1
+idna==3.11
+jinja2==3.1.6
+markupsafe==3.0.3
+pyasn1==0.6.2
+pyasn1-modules==0.4.2
+pydantic==2.12.5
+pydantic-core==2.41.5
+python-dotenv==1.2.1
+requests==2.32.5
+rsa==4.9.1
+sniffio==1.3.1
+starlette==0.50.0
+tenacity==9.1.2
+typing-extensions==4.15.0
+typing-inspection==0.4.2
+urllib3==2.6.3
+uvicorn==0.40.0
+websockets==15.0.1

vercel.json

@@ -0,0 +1,4 @@
+{
+  "builds": [{ "src": "app.py", "use": "@vercel/python" }],
+  "routes": [{ "src": "/(.*)", "dest": "app.py" }]
+}