refactor(server): domain/infra (#1298)

* refactor: user repository

* refactor: user module

* refactor: move database into infra

* refactor(cli): use user core

* chore: import path

* chore: tests

server/libs/infra/src/index.ts

@@ -0,0 +1,2 @@
+export * from './db';
+export * from './infra.module';