finish: look for student4.pt in the bundle

kaggle/notebook_finish.py

@@ -20,6 +20,9 @@ EVAL_VOICES = "a08,a01"
 
 
 def find_student() -> str | None:
+    local = BUNDLE / "student4.pt"
+    if local.exists():
+        return str(local)
     hits = glob.glob("/kaggle/input/**/train/student4.pt", recursive=True)
     hits += glob.glob("/kaggle/input/**/student4.pt", recursive=True)
     print("student4.pt candidates:", hits)