fix(infra): PostgreSQL → MySQL + tsconfig.build exclude frontend/

src/database/data-source.ts

@@ -6,9 +6,9 @@ import { LevelThreshold } from '../character/entities/level-threshold.entity';
 
 // DataSource pour le CLI TypeORM (migrations manuelles)
 export const AppDataSource = new DataSource({
-  type: 'postgres',
-  url: process.env.DATABASE_URL ?? 'postgresql://tetardpg:password@localhost:5432/tetardpg',
+  type: 'mysql',
+  url: process.env.DATABASE_URL ?? 'mysql://tetardpg:password@172.17.0.1:3306/tetardpg',
   entities: [User, Character, LevelThreshold],
-  migrations: ['src/database/migrations/*.ts'],
+  migrations: ['src/migrations/*.ts'],
   synchronize: false,
 });