feat: add Dockerfiles and MySQL TypeORM wiring for center/guild backends

Fabric.Backend.Center/src/app.module.ts

@@ -1,10 +1,12 @@
 import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { buildTypeOrmConfig } from './database.config';
 import { HealthController } from './common/health.controller';
 import { AuthModule } from './auth/auth.module';
 import { NodesModule } from './nodes/nodes.module';
 
 @Module({
-  imports: [AuthModule, NodesModule],
+  imports: [TypeOrmModule.forRoot(buildTypeOrmConfig()), AuthModule, NodesModule],
   controllers: [HealthController],
 })
 export class AppModule {}