feat: basic database functionality

lib/data/dao/statistic_group_dao.g.dart

@@ -0,0 +1,29 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'statistic_group_dao.dart';
+
+// ignore_for_file: type=lint
+mixin _$StatisticGroupDaoMixin on DatabaseAccessor<AppDatabase> {
+  $StatisticTableTable get statisticTable => attachedDatabase.statisticTable;
+  $GroupTableTable get groupTable => attachedDatabase.groupTable;
+  $StatisticGroupTableTable get statisticGroupTable =>
+      attachedDatabase.statisticGroupTable;
+  StatisticGroupDaoManager get managers => StatisticGroupDaoManager(this);
+}
+
+class StatisticGroupDaoManager {
+  final _$StatisticGroupDaoMixin _db;
+  StatisticGroupDaoManager(this._db);
+  $$StatisticTableTableTableManager get statisticTable =>
+      $$StatisticTableTableTableManager(
+        _db.attachedDatabase,
+        _db.statisticTable,
+      );
+  $$GroupTableTableTableManager get groupTable =>
+      $$GroupTableTableTableManager(_db.attachedDatabase, _db.groupTable);
+  $$StatisticGroupTableTableTableManager get statisticGroupTable =>
+      $$StatisticGroupTableTableTableManager(
+        _db.attachedDatabase,
+        _db.statisticGroupTable,
+      );
+}