feat: load .env in runtime

Author: eug-vs

env.ts

@@ -0,0 +1,4 @@
+import { config } from 'dotenv';
+
+const { parsed } = config();
+export default parsed;

index.ts

@@ -1,5 +1,6 @@
 import mongoose from 'mongoose';
 import Promise from 'bluebird';
+import './env';
 import app from './app';
 
 mongoose.Promise = Promise;