fix up some docker build issues re pathing

vault/src/app.ts

@@ -1,7 +1,5 @@
-// import express from 'express'
 import * as grpc from '@grpc/grpc-js'
 
-// import { Character } from './proto/character'
 import { initCharacterService } from './character_service'
 
 const port = 8000;
@@ -12,15 +10,4 @@ initCharacterService(app)
 
 app.bindAsync("0.0.0.0:8000", grpc.ServerCredentials.createInsecure(), () => {
   console.log("Starting server at 0.0.0.0:8000")
-})
-
-// const app = express()
-
-// app.get('/api/person', async (req, res) => {
-//   res.status(200).send('potato!')
-// })
-
-// app.listen(port, async () => {
-//   console.log(`Express is listening at http://localhost:${port}`)
-//   return
-// })
+})