testapp: update build script to specify root directory and remove unused service and type files

testapp/package.json

@@ -4,7 +4,7 @@
   "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "build": "tsc",
+    "build": "tsc --rootDir ../",
     "build:watch": "tsc --watch",
     "start": "node dist/index.js",
     "dev:server": "ts-node-dev --respawn --watch src,public/ts,public/views src/index.ts",

testapp/src/services/index.ts

@@ -1,4 +0,0 @@
-// src/services/index.ts
-
-// Aquí puedes exportar servicios de negocio
-export {};