Log build revision at startup

backend/worker/worker.py

@@ -2,6 +2,7 @@ from __future__ import annotations
 
 import os
 import requests
+GIT_SHA=os.getenv('HF_REVISION','') or os.getenv('GIT_SHA','')
 
 def _upload_pdf_to_api(pdf_id, pdf_path, pdf_name):
     base = (os.environ.get("PDF_TRAINER_API_BASE") or "").strip()
@@ -216,7 +217,7 @@ def main():
     tmp_dir = root / "tmp"
     tmp_dir.mkdir(parents=True, exist_ok=True)
 
-    print(f"[worker] Watching label: {s.label_incoming}")
+    print(f"[worker] build={GIT_SHA}\n[worker] Watching label: {s.label_incoming}")
     print(f"[worker] Known label:   {s.label_known}")
     print(f"[worker] Unknown label: {s.label_unknown}")
     print(f"[worker] Train label:   {s.label_train}")