Implementing native HTML entry points (issue #536)

[Arnav2106]

Hi webpack team — I'm applying for GSoC 2026 under the
"Entry Points as HTML" idea. I've studied the EntryPlugin →
NormalModuleFactory → Compilation.addEntry() pipeline and
designed a 4-component architecture: HtmlEntryPlugin,
HtmlModuleFactory, HtmlParser (parse5), and HtmlGenerator.

I've opened a draft RFC PR here: #20740

Would appreciate any early feedback on the module factory
approach. Happy to adjust the design based on maintainer input.