Upload stored PDFs to API space for UI fetch

backend/worker/worker.py

@@ -1,6 +1,9 @@
 from __future__ import annotations
 
 import os
+import requests
+
+PDF_TRAINER_API_BASE = (os.environ.get('PDF_TRAINER_API_BASE') or '').strip()
 import time
 import uuid
 from dataclasses import dataclass
@@ -134,6 +137,19 @@ 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}")
             )
             print(f"[worker][TRAIN] open: {trainer_link}")