update requirements

requirements.txt

@@ -0,0 +1,24 @@
+# FastAPI backend
+annotated-types==0.7.0
+anyio==4.9.0
+click==8.2.1
+colorama==0.4.6
+fastapi==0.116.1
+greenlet==3.2.3
+h11==0.16.0
+idna==3.10
+pydantic==2.11.7
+pydantic_core==2.33.2
+sniffio==1.3.1
+SQLAlchemy==2.0.42
+starlette==0.47.2
+typing-inspection==0.4.1
+typing_extensions==4.14.1
+uvicorn==0.35.0
+
+# Flask app
+Flask==3.0.3
+Flask-Migrate==4.0.7
+Flask-SQLAlchemy==3.1.1
+waitress==3.0.2
+