refactor(mobile): split store into repo and service (#16199)

* refactor(mobile): migrate store

* refactor(mobile): expand abbreviations

* chore(mobile): fix lint

---------

Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>
Co-authored-by: Alex <alex.tran1502@gmail.com>

mobile/lib/infrastructure/repositories/db.repository.dart

@@ -0,0 +1,19 @@
+import 'dart:async';
+
+import 'package:immich_mobile/domain/interfaces/db.interface.dart';
+import 'package:isar/isar.dart';
+
+// #zoneTxn is the symbol used by Isar to mark a transaction within the current zone
+// ref: isar/isar_common.dart
+const Symbol _kzoneTxn = #zoneTxn;
+
+class IsarDatabaseRepository implements IDatabaseRepository {
+  final Isar _db;
+  const IsarDatabaseRepository(Isar db) : _db = db;
+
+  // Isar do not support nested transactions. This is a workaround to prevent us from making nested transactions
+  // Reuse the current transaction if it is already active, else start a new transaction
+  @override
+  Future<T> transaction<T>(Future<T> Function() callback) =>
+      Zone.current[_kzoneTxn] == null ? _db.writeTxn(callback) : callback();
+}