docs: add environment.fetchModule documentation (#21500)

[muuim]

What

Add documentation for environment.fetchModule in the Environment API docs.

Why

Issue #21500 requested documentation for this API, which is currently undocumented.
This function allows plugins and custom environments to dynamically load modules by ID.

Changes

• Added environment.fetchModule method description under DevEnvironment
• Included parameters, return type, and usage example
• Linked to issue Document environment.fetchModule function #21500

Example

const mod = await environment.fetchModule('/src/foo.js')
console.log(mod.default)

Notes

• This is a documentation-only PR; it does not change runtime behavior
• Verified locally that docs render correctly
• Closes Document environment.fetchModule function #21500

[graphite-app]

Typo: 'environmetances' should be 'environment instances' or 'environments'.

-`fetchModule` is an internal utility available on environmetances in Vite.
+`fetchModule` is an internal utility available on environment instances in Vite.

This typo will make the documentation confusing and unprofessional.

Suggested change

	`fetchModule` is an internal utility available on environmetances in Vite.
	`fetchModule` is an internal utility available on environment instances in Vite.

Spotted by Graphite Agent



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[graphite-app]

Typo: 'plor' should be 'plugins or'.

-It allows plor custom environments to dynamically load a module by ID,
+It allows plugins or custom environments to dynamically load a module by ID,

This typo breaks the sentence readability and will confuse users reading the documentation.

Suggested change

	It allows plor custom environments to dynamically load a module by ID,
	It allows plugins or custom environments to dynamically load a module by ID,

Spotted by Graphite Agent



Is this helpful? React 👍 or 👎 to let us know.

[ematipico]

Was this AI generated? Because this is wrong. FetchResult is a union of three types, so using this code isn't type safe and you'll get a compiler error.

EDIT: after checking the second edit, I can confirm this is AI generated, with poor prompting given to the agent. I suggest the intervention of a human. One thing I'd like to see addressed is how to interpret the different variants of FetchResult, and make it type safe

[muuim]

I'm sorry, I understand. I'll correct it immediately.