✨ Push notification

🧱 Added firebase

lib/services/notify.dart

@@ -0,0 +1,54 @@
+import 'dart:developer';
+import 'dart:io';
+
+import 'package:dio/dio.dart';
+import 'package:firebase_messaging/firebase_messaging.dart';
+import 'package:flutter/foundation.dart';
+
+Future<void> subscribePushNotification(Dio apiClient) async {
+  await FirebaseMessaging.instance.requestPermission(
+    provisional: true,
+    alert: true,
+    badge: true,
+    sound: true,
+  );
+
+  String? deviceToken;
+  if (kIsWeb) {
+    deviceToken = await FirebaseMessaging.instance.getToken(
+      vapidKey:
+          "BFN2mkqyeI6oi4d2PAV4pfNyG3Jy0FBEblmmPrjmP0r5lHOPrxrcqLIWhM21R_cicF-j4Xhtr1kyDyDgJYRPLgU",
+    );
+  } else if (Platform.isAndroid) {
+    deviceToken = await FirebaseMessaging.instance.getToken();
+  } else if (Platform.isIOS) {
+    deviceToken = await FirebaseMessaging.instance.getAPNSToken();
+  }
+
+  FirebaseMessaging.instance.onTokenRefresh
+      .listen((fcmToken) {
+        _putTokenToRemote(apiClient, fcmToken, 1);
+      })
+      .onError((err) {
+        log("Failed to get firebase cloud messaging push token: $err");
+      });
+
+  if (deviceToken != null) {
+    _putTokenToRemote(
+      apiClient,
+      deviceToken,
+      !kIsWeb && (Platform.isIOS || Platform.isMacOS) ? 0 : 1,
+    );
+  }
+}
+
+Future<void> _putTokenToRemote(
+  Dio apiClient,
+  String token,
+  int provider,
+) async {
+  await apiClient.put(
+    "/notifications/subscription",
+    data: {"provider": provider, "device_token": token},
+  );
+}