docs: env instance generation

[ismglvd-hub]

Pull Request

Summary

update Environment Instance Generation docs

Issue

Breaking Change?

• Yes
• No

If yes, describe the breaking change and its impact (e.g., API changes, behavior changes, or required updates for users).

Scope / Project

docs

Implementation Notes

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Tests / Evidence

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• Tests added or updated (e.g., unit, integration, end-to-end)
• Manual testing steps or results
• Screenshots, logs, or other evidence (if applicable)

Additional Notes

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• Dependencies introduced
• Future work or follow-up tasks
• Reviewer instructions or context
• References to related PRs or discussions

Leave blank if not applicable.

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