fix: user-agent format (#27488)

* fix: user-agent format

* ci: fix static analysis

---------

Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>

mobile/android/app/src/main/kotlin/app/alextran/immich/core/HttpClientManager.kt

@@ -53,7 +53,7 @@ import javax.net.ssl.TrustManagerFactory
 import javax.net.ssl.X509KeyManager
 import javax.net.ssl.X509TrustManager
 
-const val USER_AGENT = "Immich_Android_${BuildConfig.VERSION_NAME}"
+const val USER_AGENT = "immich-android/${BuildConfig.VERSION_NAME}"
 private const val CERT_ALIAS = "client_cert"
 private const val PREFS_NAME = "immich.ssl"
 private const val PREFS_CERT_ALIAS = "immich.client_cert"

mobile/ios/Runner/Core/URLSessionManager.swift

@@ -36,7 +36,7 @@ extension UserDefaults {
 /// Old sessions are kept alive by Dart's FFI retain until all isolates release them.
 class URLSessionManager: NSObject {
   static let shared = URLSessionManager()
-  
+
   private(set) var session: URLSession
   let delegate: URLSessionManagerDelegate
   private static let cacheDir: URL = {
@@ -53,7 +53,7 @@ class URLSessionManager: NSObject {
   )
   static let userAgent: String = {
     let version = Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") as? String ?? "unknown"
-    return "Immich_iOS_\(version)"
+    return "immich-ios/\(version)"
   }()
   static let cookieStorage = HTTPCookieStorage.sharedCookieStorage(forGroupContainerIdentifier: APP_GROUP)
   private static var serverUrls: [String] = []

mobile/lib/utils/user_agent.dart

@@ -1,15 +1,16 @@
 import 'dart:io' show Platform;
+
 import 'package:package_info_plus/package_info_plus.dart';
 
 Future<String> getUserAgentString() async {
   final packageInfo = await PackageInfo.fromPlatform();
   String platform;
   if (Platform.isAndroid) {
-    platform = 'Android';
+    platform = 'android';
   } else if (Platform.isIOS) {
-    platform = 'iOS';
+    platform = 'ios';
   } else {
-    platform = 'Unknown';
+    platform = 'unknown';
   }
-  return 'Immich_${platform}_${packageInfo.version}';
+  return 'immich-$platform/${packageInfo.version}';
 }