Debug: verify auto_interp file before Bokeh start

entrypoint.sh

@@ -86,6 +86,23 @@ if [ ! -f "$PRIMARY" ]; then
     exit 1
 fi
 
+# ── Verify key files ─────────────────────────────────────────────────────────
+python3 - <<'PYEOF'
+import os, json
+pt   = "/app/data/explorer_data_d32000_k160_val.pt"
+js   = "/app/data/explorer_data_d32000_k160_val_auto_interp.json"
+print(f"PT   exists={os.path.exists(pt)}  isfile={os.path.isfile(pt)}  islink={os.path.islink(pt)}")
+print(f"JSON exists={os.path.exists(js)}  isfile={os.path.isfile(js)}  islink={os.path.islink(js)}")
+if os.path.islink(js):
+    target = os.readlink(js)
+    print(f"  -> symlink target: {target}")
+    print(f"  -> target exists:  {os.path.exists(target)}")
+if os.path.isfile(js):
+    with open(js) as f:
+        d = json.load(f)
+    print(f"  -> {len(d)} auto-interp entries")
+PYEOF
+
 # ── Launch Bokeh server ───────────────────────────────────────────────────────
 echo "Starting Bokeh server on port 7860..."
 echo "  Primary data: $PRIMARY"