feat: initialize TypeScript project with Express and Todo API

- Created package.json with dependencies for Express and TypeScript.
- Set up main application file (app.ts) with basic Express server.
- Implemented Todo controller with CRUD operations.
- Added Todo model for managing todo items.
- Created routes for Todo API.
- Included basic HTML file for frontend.
- Configured TypeScript with tsconfig.json for Node.js environment.

Author: manthanank

index.js renamed to index.ts

@@ -1,7 +1,7 @@
 {
   "name": "learn-typescript",
   "version": "1.0.0",
-  "description": "",
+  "description": "This is a simple project to learn typescript with compilation.",
   "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",