张贴文件的所有内容会减少问题的概述。
同时，我找到了一个可行的解决方案。在大多数教程中，数据库的使用是在app.module.ts中按以下方式完成的：

import { Module } from '@nestjs/common';
import config from './typeorm.config';

@Module({
  imports: [
    TypeOrm.forRoot(config),  // <-- this is not forcing the table initialisation when used with turborepo
  ],
  controllers: [AppController],
  providers: [AppService],
})

解决方案是创建一个连接，并在一个单独的模块中同步数据库，如下图所示（Database.ts）：

import { PostgresConnectionOptions } from 
  'typeorm/driver/postgres/PostgresConnectionOptions';
import config from './typeorm.config';
import { Connection, createConnection } from 'typeorm';
import { Injectable } from '@nestjs/common';

@Injectable()
export class Database {
  public Connection: Connection;
  public Configuration: PostgresConnectionOptions;
  public Environment: string;

  constructor() {
    this.Environment = process.env.NODE_ENV;
    this.Configuration = config;

    console.log('Detecting ' + this.Environment + ' environment.');
    console.log(
      'DB information host: ' +
        this.Configuration.host +
        '; user: ' +
        this.Configuration.username,
    );

    this.createConnection();
  }

  private createConnection() {
    createConnection(this.Configuration)
     .then((connection) => {
       console.log('connected!');
        this.Connection = connection;
        connection.synchronize();  // <-- here we create the tables
     })
     .catch((error) => {
        console.log('Error: ' + error);
      });
  }
}

要使数据库在project中可访问，请在main. ts的bootstrap函数中定义它：

import { NestFactory } from '@nestjs/core';
import { AppModule } from './Api/App/app.module';
import { Database } from './Database';

async function bootstrap() {
  const app = await NestFactory.create(AppModule);

  app.get(Database);
  await app.listen(3000);
}