Route the weather toggle through the shell target too

Weather wraps its panel in a BarWidget that only exposed togglePanel(),
so it couldn't ride the new shell-routed hotkey path and was left on the
stale-prone per-plugin target. Expose open/close/opened on the wrapper
(open maps to the panel's hotkey path so the center hover reveal stays
suppressed) and switch omarchy-notification-weather to the new syntax.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

bin/omarchy-notification-weather

@@ -2,4 +2,4 @@
 
 # omarchy:summary=Toggle the current weather panel
 
-omarchy-shell omarchy.weather toggle
+omarchy-shell shell toggle omarchy.weather

shell/plugins/panels/weather/BarWidget.qml

@@ -22,6 +22,20 @@ BarWidget {
     if (panelLoader.item && panelLoader.item.toggle) panelLoader.item.toggle()
   }
 
+  // Shape contract for shell.summon/hide/toggle routing (Bar.findPanelWidget
+  // requires open/close/opened on the bar-widget root). Open maps to the
+  // panel's hotkey path so summoning suppresses the center hover reveal,
+  // matching what the old per-plugin IpcHandler did.
+  readonly property bool opened: panelLoader.item ? panelLoader.item.opened === true : false
+
+  function open() {
+    if (panelLoader.item && panelLoader.item.openFromHotkey) panelLoader.item.openFromHotkey()
+  }
+
+  function close() {
+    if (panelLoader.item && panelLoader.item.close) panelLoader.item.close()
+  }
+
   visible: panelLoader.item && panelLoader.item.label !== ""
   implicitWidth: bar && bar.vertical ? button.implicitWidth : button.implicitWidth + Style.spacing.labelGap
   implicitHeight: button.implicitHeight