Add playoff round view, game numbers, goal scorer notifications, standings

- Fetch NHL standings and surface league/season game counts in the menu bar
- Prefix regular-season rows with the league-wide game number (from gameId)
- New ROUND section shows each active playoff series (matchup, series score,
  next game number + time) derived from /v1/playoff-bracket; rows always open
  the NHL series page so completed series remain clickable
- Goal notifications include scorer sweater, abbreviated name, and strength
  (PPG/SHG/EN), resolved via /v1/gamecenter/{id}/play-by-play
- Drop the per-team filter submenu and NHLTeam enum
- Regenerate AppIcon with the full 10-size macOS set (alpha preserved) so
  notifications render the app icon correctly; rename the iOS marketing PNG
  to icon-ios-1024.png
- gitignore .claude/ local tooling settings

IceGlass/AppDelegate.swift

@@ -7,6 +7,7 @@
 
 import UserNotifications
 import AppKit
+import CoreServices
 
 class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDelegate {
     private let logger = IceGlassLogger(
@@ -20,8 +21,12 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
         logger.info("applicationDidFinishLaunching")
         UNUserNotificationCenter.current().delegate = self
 
-        // Set app icon explicitly (LSUIElement apps may not pick it up automatically)
-        if let icon = NSImage(named: "AppIcon") {
+        // Force re-register with Launch Services to refresh cached icon
+        LSRegisterURL(Bundle.main.bundleURL as CFURL, true)
+
+        // Set app icon explicitly from .icns (NSImage(named:) doesn't work for App Icon assets)
+        if let icnsPath = Bundle.main.path(forResource: "AppIcon", ofType: "icns"),
+           let icon = NSImage(contentsOfFile: icnsPath) {
             NSApp.applicationIconImage = icon
         }
     }