fix hybrid combiner path; retry L2CS download at startup

checkpoints/hybrid_focus_config.json

@@ -10,5 +10,5 @@
   "mar_yawn_threshold": 0.55,
   "metric": "f1",
   "combiner": "logistic",
-  "combiner_path": "/Users/mohammedalketbi22/GAP/Final/checkpoints/hybrid_combiner.joblib"
+  "combiner_path": "hybrid_combiner.joblib"
 }

start.sh

@@ -1,8 +1,15 @@
 #!/bin/bash
 set -e
 
+# Writable matplotlib config (HF / read-only home)
+export MPLCONFIGDIR="${MPLCONFIGDIR:-/tmp/matplotlib}"
+mkdir -p "$MPLCONFIGDIR"
+
 echo "=== Resolving LFS pointers ==="
 python resolve_lfs.py
 
+echo "=== L2CS weights (retry if missing; build-time download may fail) ==="
+python download_l2cs_weights.py || echo "[WARN] L2CS weights download failed — eye gaze unavailable"
+
 echo "=== Starting FocusGuard ==="
 exec uvicorn main:app --host 0.0.0.0 --port 7860 --log-level info