Implement Object::Delete for Node-API-JSI

[bghgary]

[Filed by Copilot on behalf of @bghgary]

Describe the bug

Node-API-JSI’s Napi::Object::Delete overloads throw std::runtime_error("TODO") instead of deleting the requested property. The implementation is currently stubbed.

To Reproduce

auto object = Napi::Object::New(env);
object.Set("value", 1);
object.Delete("value");

The final call throws "TODO".

Expected behavior

Object::Delete should delete the property and return the result without throwing.

Screenshots

N/A

Other

• Platform: Windows x64 with the JSI backend.