docs(api): add this.getOptions schema validation example

[raj-sapalya]

What kind of change does this PR introduce?
Documentation improvement — adds a missing example for this.getOptions() with schema validation.

Summary

The this.getOptions(schema) API supports passing a JSON Schema for
automatic option validation, but the current docs show only a one-line
description with no example.

Many loader authors still use the separate schema-utils validate()
pattern because there is no example showing that this.getOptions()
handles validation natively when a schema is passed.

This PR adds a minimal working example showing:

• passing a schema to this.getOptions()
• accessing validated options inside a loader
• using additionalProperties: false to catch unknown options at build start

Does this PR introduce a breaking change?
No.

What needs to be documented once your changes are merged?
Nothing additional.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
webpack-js-org	Ready	Preview, Comment	Apr 25, 2026 9:31am