[push-deeplink-routing-contract] Generalize push tap routing to DeepLinkDestination

Replace order_status-only NotificationCenter path with a single
DeepLinkDestination enum + PushDeepLinkParser, decoded once in
PushNotificationCoordinator and dispatched via ContentView.route(to:).
Also fixes NotificationService reading userInfo["image"] instead of
the guide's stale "imageUrl" key.

Sources/PediFoods/ContentView.swift

@@ -15,7 +15,7 @@ struct ContentView: View {
     @State private var sessionExpiredObserver: NSObjectProtocol?
     @State var cartResetObserver: Any?
     @State var appResumeObserver: Any?
-    @State var pushOrderTapObserver: Any?
+    @State var pushDeepLinkObserver: Any?
     @StateObject var snackbarCenter = SnackbarCenter.shared
 
     var body: some View {
@@ -91,13 +91,13 @@ struct ContentView: View {
             attachCartResetObserverIfNeeded()
             attachAppResumeObserverIfNeeded()
             attachSessionExpiredObserverIfNeeded()
-            attachPushOrderTapObserverIfNeeded()
+            attachPushDeepLinkObserverIfNeeded()
         }
         .onDisappear {
             detachCartResetObserver()
             detachAppResumeObserver()
             detachSessionExpiredObserver()
-            detachPushOrderTapObserver()
+            detachPushDeepLinkObserver()
         }
     }
 
@@ -244,36 +244,50 @@ struct ContentView: View {
         self.appResumeObserver = nil
     }
 
-    /// §6 of the push notifications guide — an `order_status` push tap
-    /// (reported by `PushNotificationCoordinator`) routes here to the
-    /// Profile tab's Orders list, pre-targeted at that order.
-    private func attachPushOrderTapObserverIfNeeded() {
-        guard pushOrderTapObserver == nil else { return }
-        pushOrderTapObserver = NotificationCenter.default.addObserver(
-            forName: .pushTappedOrderStatus,
+    /// §6 of the push notifications guide, generalized: any tapped push that
+    /// resolves to a `DeepLinkDestination` (reported by
+    /// `PushNotificationCoordinator`) lands here. Adding a future promo/coupon
+    /// screen means adding one case to `route(to:)` below — this observer,
+    /// the notification name, and the AppState plumbing for it stay put.
+    private func attachPushDeepLinkObserverIfNeeded() {
+        guard pushDeepLinkObserver == nil else { return }
+        pushDeepLinkObserver = NotificationCenter.default.addObserver(
+            forName: .pushDeepLinkReceived,
             object: nil,
             queue: nil
         ) { notification in
-            let orderId = notification.userInfo?["orderId"] as? String
-            let shortId = notification.userInfo?["shortId"] as? String
+            guard let destination = notification.userInfo?["destination"] as? DeepLinkDestination else { return }
             Task { @MainActor in
-                guard root == .main, let orderId else { return }
-                appState.pendingOrderDeepLink = OrderRouteContext(
-                    orderId: orderId,
-                    shortId: shortId,
-                    paymentMethod: nil,
-                    total: nil,
-                    intent: .auto
-                )
-                selectedTab = .profile
+                route(to: destination)
             }
         }
     }
 
-    private func detachPushOrderTapObserver() {
-        guard let pushOrderTapObserver else { return }
-        NotificationCenter.default.removeObserver(pushOrderTapObserver)
-        self.pushOrderTapObserver = nil
+    private func detachPushDeepLinkObserver() {
+        guard let pushDeepLinkObserver else { return }
+        NotificationCenter.default.removeObserver(pushDeepLinkObserver)
+        self.pushDeepLinkObserver = nil
+    }
+
+    @MainActor
+    private func route(to destination: DeepLinkDestination) {
+        guard root == .main else { return }
+        switch destination {
+        case .orderTracking(let orderId, let shortId):
+            appState.pendingOrderDeepLink = OrderRouteContext(
+                orderId: orderId,
+                shortId: shortId,
+                paymentMethod: nil,
+                total: nil,
+                intent: .auto
+            )
+            selectedTab = .profile
+        case .screen(let name, let params):
+            // Promo/coupon screens (participating stores/products, §6's
+            // `targetScreen` convention) land here once they exist — see
+            // decisions/2026-08-04-push-deeplink-routing-contract.md.
+            logger.debug("Unhandled deep-link screen: \(name, privacy: .public) params=\(params, privacy: .public)")
+        }
     }
 
     @MainActor