Add iPhone target with shared data layer and persistent cache

Two-target restructure: shared sources (models, services, settings,
extensions, team logos) move into Shared/, consumed by both the
existing macOS menu bar app and a new iOS app. MainService no longer
imports AppKit — platform code attaches via a MainServiceObserver
protocol (MacObserverAdapter wires back to MenuManager / StatusItemManager
/ NotificationManager).

iPhone app is a single SwiftUI page mirroring the macOS menu (playoff
round + yesterday/today/tomorrow), with a gear-icon settings sheet
(display option + IndieAbout for license/changelog). Persistent JSON
snapshot in Application Support paints last-known data on cold launch;
"Updated …" header escalates secondary → orange (>5min) → red (>30min)
so staleness is visually unmistakable. Foreground polling, scenePhase
refresh, and pull-to-refresh; no notifications on iOS in v1.

Shared/Models/StandingsModel.swift

@@ -0,0 +1,35 @@
+//
+// StandingsModel.swift
+// IceGlass
+//
+// Copyright 2026 Rouslan Zenetl. All Rights Reserved.
+//
+
+import Foundation
+
+struct Standings: Codable {
+    let standings: [TeamStanding]
+
+    struct LocalizedString: Codable {
+        let `default`: String
+    }
+
+    struct TeamStanding: Codable {
+        let teamAbbrev: LocalizedString
+        let teamLogo: String
+        let gamesPlayed: Int
+        let wins: Int
+        let losses: Int
+        let otLosses: Int
+        let points: Int
+        let seasonId: Int
+    }
+
+    /// Total unique games played across the league (each game counted once)
+    var totalGamesPlayed: Int {
+        standings.reduce(0) { $0 + $1.gamesPlayed } / 2
+    }
+
+    /// Total regular season games: 32 teams * 82 games / 2
+    static let totalRegularSeasonGames = 1312
+}