Add local profile

lib/data/local/database.dart

@@ -3,8 +3,10 @@ import 'dart:io';
 import 'package:drift/drift.dart';
 import 'package:drift/native.dart';
 import 'package:hiddify/data/local/dao/dao.dart';
+import 'package:hiddify/data/local/schema_versions.dart';
 import 'package:hiddify/data/local/tables.dart';
 import 'package:hiddify/data/local/type_converters.dart';
+import 'package:hiddify/domain/profiles/profiles.dart';
 import 'package:hiddify/services/files_editor_service.dart';
 import 'package:path/path.dart' as p;
 
@@ -17,7 +19,31 @@ class AppDatabase extends _$AppDatabase {
   AppDatabase.connect() : super(_openConnection());
 
   @override
-  int get schemaVersion => 1;
+  int get schemaVersion => 2;
+
+  @override
+  MigrationStrategy get migration {
+    return MigrationStrategy(
+      onCreate: (Migrator m) async {
+        await m.createAll();
+      },
+      onUpgrade: stepByStep(
+        // add type column to profile entries table
+        // make url column nullable
+        from1To2: (m, schema) async {
+          await m.alterTable(
+            TableMigration(
+              schema.profileEntries,
+              columnTransformer: {
+                schema.profileEntries.type: const Constant<String>("remote"),
+              },
+              newColumns: [schema.profileEntries.type],
+            ),
+          );
+        },
+      ),
+    );
+  }
 }
 
 LazyDatabase _openConnection() {