Fix: remove supervisord environment block so HF Spaces secrets reach uvicorn

docker/supervisord.conf

@@ -29,18 +29,10 @@ redirect_stderr=true
 priority=10
 
 # ── FastAPI backend ────────────────────────────────────────────────────────────
+# No environment= block — inherits full container env so HF Spaces secrets are visible
 [program:backend]
 command=bash -c "sleep 60 && python3 -m uvicorn main:app --host 127.0.0.1 --port 8000 --workers 1"
 directory=/app/backend
-environment=
-    NEO4J_URI="bolt://127.0.0.1:7687",
-    NEO4J_USERNAME="neo4j",
-    NEO4J_PASSWORD="",
-    NEO4J_DATABASE="neo4j",
-    NEO4J_AUTH="none",
-    OPENAI_API_KEY="%(ENV_OPENAI_API_KEY)s",
-    OPENAI_BASE_URL="%(ENV_OPENAI_BASE_URL)s",
-    OPENAI_MODEL="%(ENV_OPENAI_MODEL)s"
 autostart=true
 autorestart=true
 startsecs=15