feat: enhance settings dialog and update check logging

thor_tray.py

@@ -126,17 +126,17 @@ def check_for_update():
         cfg = _read_config()
         update_source = str(cfg.get("update_source", "gitea")).strip().lower()
         update_url    = str(cfg.get("update_url", "")).strip()
-    except Exception:
+    except Exception as exc:
+        _update_log("config read failed in check_for_update: {} — defaulting to gitea".format(exc))
         update_source = "gitea"
         update_url    = ""
 
-    if update_source == "disabled":
-        return None, None
-
     _update_log("Checking for update (source={}, version={})".format(
         update_source, _CURRENT_VERSION
     ))
 
+    if update_source == "disabled":
+        return None, None
     if update_source == "url":
         return _check_for_update_url(update_url)
     else:
@@ -472,8 +472,11 @@ class WatcherTray:
 
     def _icon_updater(self):
         """Periodically refresh the tray icon and check for updates."""
+        _update_log("Updater thread started (version={}, first check in ~30s)".format(_CURRENT_VERSION))
         last_status = None
-        update_check_counter = 0  # check every ~5 min (30 × 10s ticks)
+        # Initial first-check fires at counter==3 (~30s) so we get a confirmation
+        # line in the log soon after startup; subsequent checks every ~5 min.
+        update_check_counter = 27
 
         while not self.stop_event.is_set():
             icon_status = self._tray_status()