add: reservation app

refactor: add some await

refactor: delete extra catch error

refactor: add some catch for errors

refactor: add some catch for errors

draft: add abstract repository

add: base abstract entity

add: joi validator

remove: typeorm in library

add database module

add: env pg

feat: update angular version

fix: change ports for angular dockerfiles

add: readme for docker

rename client

add: docker

start: angular & nest.js