Added user login & registration. Added SQL file for postgres database.

backend/nestjs-seshat-api/src/main.ts

@@ -0,0 +1,10 @@
+import * as cookieParser from 'cookie-parser';
+import { NestFactory } from '@nestjs/core';
+import { AppModule } from './app.module';
+
+async function bootstrap() {
+  const app = await NestFactory.create(AppModule);
+  app.use(cookieParser());
+  await app.listen(process.env.PORT ?? 3001);
+}
+bootstrap();