✨ Keypair Infra

lib/database/keypair.dart

@@ -1,32 +1,4 @@
-import 'dart:convert';
-
 import 'package:drift/drift.dart';
-import 'package:surface/types/keypair.dart';
-
-class SnKeyPairConverter extends TypeConverter<SnKeyPair, String>
-    with JsonTypeConverter2<SnKeyPair, String, Map<String, Object?>> {
-  const SnKeyPairConverter();
-
-  @override
-  SnKeyPair fromSql(String fromDb) {
-    return fromJson(jsonDecode(fromDb) as Map<String, dynamic>);
-  }
-
-  @override
-  String toSql(SnKeyPair value) {
-    return jsonEncode(toJson(value));
-  }
-
-  @override
-  SnKeyPair fromJson(Map<String, Object?> json) {
-    return SnKeyPair.fromJson(json);
-  }
-
-  @override
-  Map<String, Object?> toJson(SnKeyPair value) {
-    return value.toJson();
-  }
-}
 
 class SnLocalKeyPair extends Table {
   TextColumn get id => text()();