Add game-ended notification

Fires the first time a game transitions from non-over to any over-state
(OVER/FINAL/OFF), so the notification lands when the clock runs out
rather than hours later when NHL statisticians stamp OFF. Shows the
winning team's logo with a "{TEAM} wins" title and final score body.

Deduped by game ID via gameEndsSent; cleared on resetForNewDay.
Dev menu: "Test Game Ended Notification" for manual trigger.

IceGlass/Managers/MenuManager.swift

@@ -220,6 +220,9 @@ class MenuManager: @unchecked Sendable {
         devSubmenu.addItem(
             NSMenuItem(title: "Test Goal Scored Notification", action: #selector(triggerTestGoalScored), keyEquivalent: "").withTarget(self)
         )
+        devSubmenu.addItem(
+            NSMenuItem(title: "Test Game Ended Notification", action: #selector(triggerTestGameEnded), keyEquivalent: "").withTarget(self)
+        )
         devSubmenu.addItem(
             NSMenuItem(title: "Thumbnail Size Test", action: #selector(triggerThumbnailSizeTest), keyEquivalent: "").withTarget(self)
         )
@@ -308,6 +311,13 @@ class MenuManager: @unchecked Sendable {
         }
     }
 
+    @objc private func triggerTestGameEnded() {
+        let notificationManager = NotificationManager.shared
+        if let game = mainService.gamesByDate.flatMap(\.games).first {
+            notificationManager.notifyGameEnded(game, bypassDedup: true)
+        }
+    }
+
     @objc private func triggerThumbnailSizeTest() {
         NotificationManager.shared.sendThumbnailSizeTest()
     }