Create Clean ESM Public Exports

[allenbakki]

Create a single entry point (src/index.js) that exposes only the stable and intended APIs of the project. Internal modules or helpers should remain private.
Create src/index.js if it doesn’t exist. (already exists so make changes to it.)

The goal to achieve is
Only intended public APIs are exported.
Internal/private modules are not accessible from src/index.js.
Code using the public exports works without referencing deep paths.