move to koa and add user pages

server/package.json

@@ -14,18 +14,21 @@
   "devDependencies": {
     "@types/bluebird": "^3.5.36",
     "@types/lodash": "^4.14.182",
+    "@types/koa": "^2.13.5",
     "node-dev": "^7.4.3",
     "prisma": "^4.1.0",
     "ts-node-dev": "^2.0.0",
     "typescript": "^4.7.4"
   },
   "dependencies": {
+    "@koa/cors": "^3.3.0",
+    "@koa/router": "^12.0.0",
     "@prisma/client": "^4.1.0",
     "axios": "^0.27.2",
     "bluebird": "^3.7.2",
     "bunyan": "^1.8.15",
-    "cors": "^2.8.5",
-    "express": "^4.18.1",
+    "koa": "^2.13.4",
+    "koa-body": "^5.0.0",
     "lodash": "^4.17.21"
   }
 }