fix: resolve wifi crashes, shell injections, race conditions, and add debug mode

- Remove transient NEED_AUTH/DISCONNECTED error paths from wifi connect
- Guard double-callback in connect_wifi_bssid/connect_wifi_with_password
- Shell-quote user paths in wallpaper, screenshot, screenrecorder services
- Fix OSD hide-timer use-after-free and applet_window stale source ID
- Fix brightness poll timer leak on read failure
- Fix spotlight search stale idle source removal
- Lock dbusmenu _cache mutation under _registry_lock
- Fix entry.revision written outside _registry_lock scope
- Add fabric-cli exec wrapper for lock screen (lock_screen.lock())
- Replace hyprlock with lock screen in power menu and dropdown
- Add debug mode toggle in settings (controls log verbosity)
- Add diagnostic logging to globalmenu click chain

src/window/desktop/widget.py

@@ -15,6 +15,7 @@ from fabric.widgets.label import Label
 from fabric.widgets.overlay import Overlay
 from fabric.widgets.wayland import WaylandWindow as Window
 
+from services.config import on_config_change
 from shared.data import load_config
 from utils.gtk_utils import svg_file
 from window.desktop.constants import (
@@ -93,6 +94,16 @@ class WeatherService(Service):
         # connecting (see Weather.__init__) to avoid a race with subscription.
         GLib.timeout_add_seconds(WEATHER_UPDATE_INTERVAL, self._refresh)
 
+        on_config_change(self._on_config_change)
+
+    def _on_config_change(self, new_config, old_config):
+        if new_config.get("weather_location") != old_config.get("weather_location"):
+            self._weather = None
+            self._location = None
+            self._coords = None
+            self._coords_location = None
+            self._executor.submit(self._fetch)
+
     # -- scheduling -------------------------------------------------------
 
     def refresh(self) -> None: