build: upgrade typescript and align TD schema with W3C IRI standards

[siddharthbaleja7]

Fix: Upgrade TypeScript to resolve build errors

Description

The project was failing to compile due to a TypeScript version mismatch. The existing version (^3.8.3) was incompatible with newer type definitions in dependencies (specifically @types/whatwg-url), causing multiple syntax errors during the build process, such as:

../../node_modules/@types/whatwg-url/index.d.ts:66:13 - error TS1109: Expression expected.

Changes

• Upgraded typescript dev dependency in package.json to ^4.9.5.
• Updated package-lock.json to reflect the dependency changes.

Verification

1. Run npm install to update dependencies.
2. Run npm run compile to verify that the build now completes successfully without errors.