setup file structure

Author: G4EVA-dev

package.json

@@ -1,9 +1,11 @@
 {
   "name": "number-classification-api",
   "version": "1.0.0",
-  "main": "index.js",
+  "main": "index.tsx",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "start": "node dist/index.js",
+    "build": "tsc",
+    "dev": "nodemon src/index.ts"
   },
   "keywords": [],
   "author": "",