fix ocr

backend/requirements.txt

@@ -0,0 +1,18 @@
+fastapi==0.135.1
+uvicorn[standard]==0.41.0
+sqlalchemy[asyncio]==2.0.48
+asyncpg==0.31.0
+alembic==1.18.4
+celery[redis]==5.6.2
+redis==6.4.0
+pydantic-settings>=2.0.0
+python-multipart==0.0.22
+Pillow==12.1.0
+httpx==0.28.1
+openpyxl==3.1.5
+python-docx==1.2.0
+psycopg2-binary==2.9.11
+
+# dev dependencies
+pytest==9.0.2
+pytest-asyncio>=0.24.0