fix(updates): skip redownloading cached packages and disable background updater in CI

src/hub/Server.py

@@ -2232,8 +2232,10 @@ async def update_checker_loop(interval_hours: int = 1):
     Background worker that periodically queries the upstream repository
     and automatically downloads/caches client binary update packages locally on the Hub.
     """
-    # Brief initial pause after socket startup
-    await asyncio.sleep(5)
+    if os.environ.get("LOGAR_DISABLE_AUTO_UPDATE", "").lower() in ("1", "true", "yes"):
+        return
+    initial_delay = int(os.environ.get("LOGAR_UPDATE_CHECK_INITIAL_DELAY", "60"))
+    await asyncio.sleep(initial_delay)
     while True:
         try:
             mgr: ServerUpdateManager = SERVER_STATE.get("update_manager") or UPDATE_MANAGER