start prefetcher

Dockers/self-hosted-iptv/iptv/metadata_prefetcher.py

@@ -47,14 +47,15 @@ class MetadataPrefetcher:
         self._stop.set()
 
     def _run_loop(self) -> None:
-        """Background loop: wait, then run a scan."""
+        """Background loop: run first scan immediately, then wait and repeat."""
         while not self._stop.is_set():
+            self._run_scan()
+            if self._stop.is_set():
+                break
             self._stop.wait(timeout=min(60, self._interval_sec))
             if self._stop.is_set():
                 break
-            if self._stop.wait(timeout=max(0, self._interval_sec - 60)):
-                break
-            self._run_scan()
+            self._stop.wait(timeout=max(0, self._interval_sec - 60))
 
     def _run_scan(self, scheduled: set | None = None) -> None:
         """