chore(06-01): update requirements.txt and start.sh for FastAPI launch

- Add fastapi>=0.111.0, uvicorn[standard]>=0.29.0, websockets>=12.0, python-multipart>=0.0.9
- start.sh: replace 'exec streamlit run ui.py' with 'exec python api_server.py'
- Ever-jobs startup block and health-wait loop are untouched

requirements.txt

@@ -40,3 +40,9 @@ streamlit>=1.45.0
 
 # Persistence (private HF Dataset for run history + resumes on HF Spaces)
 huggingface_hub>=0.23.0
+
+# API server (FastAPI JSON API + Streamlit reverse proxy for Chrome extension)
+fastapi>=0.111.0
+uvicorn[standard]>=0.29.0
+websockets>=12.0
+python-multipart>=0.0.9

start.sh

@@ -43,6 +43,6 @@ if [ $READY -eq 0 ]; then
     echo "         Dedicated scrapers (LinkedIn/Indeed/Glassdoor/Remotive/WWR/Naukri) still work."
 fi
 
-echo "=== Starting Streamlit ==="
+echo "=== Starting FastAPI + Streamlit (via api_server.py) ==="
 cd /app
-exec streamlit run ui.py --server.port=7860 --server.address=0.0.0.0
+exec python api_server.py