fix: resolve HF Space restart - port mismatch, CORS, worker count, env vars

Dockerfile

@@ -64,8 +64,10 @@ USER 1000
 
 # Set Environment Variables
 ENV SEARXNG_SETTINGS_PATH=/app/searxng/settings.yml
-ENV SEARXNG_BASE_URL=http://localhost:8888/
+ENV SEARXNG_BASE_URL=http://localhost:8888
 ENV BACKEND_URL=http://localhost:8000
+ENV FRONTEND_URL=*
+ENV SARVAM_API_KEY=""
 ENV PORT=3000
 
 EXPOSE 3000 8000 8888

backend/config.py

@@ -15,12 +15,12 @@ class Settings(BaseSettings):
     SARVAM_SYNTH_MODEL: str = "sarvam-105b"
 
     # ── SearxNG ────────────────────────────────────────────────
-    SEARXNG_BASE_URL: str = "http://localhost:8080"
+    SEARXNG_BASE_URL: str = "http://localhost:8888"
     SEARCH_REGION_DEFAULT: str = "in-en"
     SEARCH_LANG_DEFAULT: str = "en"
 
     # ── Frontend ───────────────────────────────────────────────
-    FRONTEND_URL: str = "http://localhost:3000"
+    FRONTEND_URL: str = "*"
 
     model_config = {
         "env_file": ".env",

backend/main.py

@@ -26,11 +26,12 @@ app = FastAPI(
     version="0.4.0",
 )
 
-# CORS: allow frontend dev server
+# CORS: allow frontend (wildcard for HF Spaces, specific URL for local dev)
+_origins = ["*"] if settings.FRONTEND_URL == "*" else [settings.FRONTEND_URL]
 app.add_middleware(
     CORSMiddleware,
-    allow_origins=[settings.FRONTEND_URL],
-    allow_credentials=True,
+    allow_origins=_origins,
+    allow_credentials=False if settings.FRONTEND_URL == "*" else True,
     allow_methods=["*"],
     allow_headers=["*"],
 )

supervisord.conf

@@ -15,7 +15,7 @@ stderr_logfile=/dev/stderr
 stderr_logfile_maxbytes=0
 
 [program:backend]
-command=gunicorn main:app --workers 4 --worker-class uvicorn.workers.UvicornWorker --bind 0.0.0.0:8000
+command=gunicorn main:app --workers 2 --worker-class uvicorn.workers.UvicornWorker --bind 0.0.0.0:8000
 directory=/app/backend
 autostart=true
 autorestart=true