Уведомления в фоне, оптимизация FPS чата, release notes, read receipts паритет с Android

RosettaNotificationService/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleDisplayName</key>
+	<string>RosettaNotificationService</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(MARKETING_VERSION)</string>
+	<key>CFBundleVersion</key>
+	<string>$(CURRENT_PROJECT_VERSION)</string>
+	<key>NSExtension</key>
+	<dict>
+		<key>NSExtensionPointIdentifier</key>
+		<string>com.apple.usernotifications.service</string>
+		<key>NSExtensionPrincipalClass</key>
+		<string>$(PRODUCT_MODULE_NAME).NotificationService</string>
+	</dict>
+</dict>
+</plist>

RosettaNotificationService/NotificationService.swift

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+import UserNotifications
+
+/// Notification Service Extension — runs as a separate process even when the main app
+/// is terminated. Intercepts push notifications with `mutable-content: 1` and:
+/// 1. Adds `.default` sound for vibration (server payload has no sound)
+/// 2. Increments the app icon badge from shared App Group storage
+final class NotificationService: UNNotificationServiceExtension {
+
+    private static let appGroupID = "group.com.rosetta.dev"
+    private static let badgeKey = "app_badge_count"
+
+    private var contentHandler: ((UNNotificationContent) -> Void)?
+    private var bestAttemptContent: UNMutableNotificationContent?
+
+    override func didReceive(
+        _ request: UNNotificationRequest,
+        withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void
+    ) {
+        self.contentHandler = contentHandler
+        bestAttemptContent = request.content.mutableCopy() as? UNMutableNotificationContent
+
+        guard let content = bestAttemptContent else {
+            contentHandler(request.content)
+            return
+        }
+
+        // 1. Add sound for vibration — server APNs payload has no sound field.
+        content.sound = .default
+
+        // 2. Increment badge count from shared App Group storage.
+        if let shared = UserDefaults(suiteName: Self.appGroupID) {
+            let current = shared.integer(forKey: Self.badgeKey)
+            let newBadge = current + 1
+            shared.set(newBadge, forKey: Self.badgeKey)
+            content.badge = NSNumber(value: newBadge)
+        }
+
+        // 3. Ensure notification category for CarPlay parity.
+        if content.categoryIdentifier.isEmpty {
+            content.categoryIdentifier = "message"
+        }
+
+        contentHandler(content)
+    }
+
+    /// Called if the extension takes too long (30s limit).
+    /// Deliver the best attempt content with at least the sound set.
+    override func serviceExtensionTimeWillExpire() {
+        if let handler = contentHandler, let content = bestAttemptContent {
+            content.sound = .default
+            handler(content)
+        }
+    }
+}

RosettaNotificationService/RosettaNotificationService.entitlements

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.application-groups</key>
+	<array>
+		<string>group.com.rosetta.dev</string>
+	</array>
+</dict>
+</plist>