Fix TRAIN upload block syntax + upload to API

backend/worker/worker.py

@@ -137,20 +137,21 @@ def _process_train_label(gmail: GmailClient, s: Settings, root: Path) -> None:
             print(
                 f"[worker][TRAIN] stored PDF msg={m.msg_id} file={filename} "
                 f"pdf_id={pdf_id} stored={stored_pdf_path}"
-
-        # push PDF into API space so UI can fetch it
-        try:
-            if PDF_TRAINER_API_BASE:
-                with open(stored_pdf_path, "rb") as f:
-                    requests.post(
-                        f"{PDF_TRAINER_API_BASE.rstrip('/')}/api/pdf/{pdf_id}",
-                        files={"file": (f"{pdf_id}.pdf", f, "application/pdf")},
-                        data={"pdf_name": filename},
-                        timeout=30,
-                    ).raise_for_status()
-        except Exception as e:
-            print(f"[worker] WARN: failed to upload PDF to API: {e}")
             )
+            
+            # push PDF into API space so UI can fetch it
+            try:
+                if PDF_TRAINER_API_BASE:
+                    with open(stored_pdf_path, "rb") as f:
+                        requests.post(
+                            f"{PDF_TRAINER_API_BASE.rstrip('/')}/api/pdf/{pdf_id}",
+                            files={"file": (f"{pdf_id}.pdf", f, "application/pdf")},
+                            data={"pdf_name": filename},
+                            timeout=30,
+                        ).raise_for_status()
+            except Exception as e:
+                print(f"[worker] WARN: failed to upload PDF to API: {e}")
+            
             print(f"[worker][TRAIN] open: {trainer_link}")