fix: respect command ignores HTTP_PROXY

[harshit078]

What/Why/How?

• using withConnectionClient () function in index.ts as a BaseResolver which inreturn should fetch HTTP_PROXY and other related.
• Fixed the respect command so that loading remote sourceDescriptions and external $refs honors HTTP_PROXY / HTTPS_PROXY / NO_PROXY

Reference

#2668

Testing

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Check yourself

• This PR follows the contributing guide
• All new/updated code is covered by tests
• Core code changed? - Tested with other Redocly products (internal contributions only)
• New package installed? - Tested in different environments (browser/node)
• Documentation update has been considered

Security

• The security impact of the change has been considered
• Code follows company security practices and guidelines

---

Note

Medium Risk
Changes network resolution behavior for remote source descriptions and external $refs by wiring a new BaseResolver with a custom fetch; misconfiguration could impact connectivity or proxy bypass (NO_PROXY) behavior. Covered by targeted unit tests asserting proxy/mTLS fetch selection.

Overview
Fixes respect so remote source descriptions and external $ref resolution consistently honor HTTP_PROXY/HTTPS_PROXY/NO_PROXY by passing a dedicated BaseResolver into run that uses the same proxy/mTLS-aware customFetch.

Adds unit tests verifying externalRefResolver is provided and that its customFetch switches between bare undici fetch vs proxy-aware/mTLS-aware implementations based on env vars and --mtls. Includes a patch changeset documenting the fix.

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[changeset-bot]

🦋 Changeset detected

Latest commit: bd37494

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@redocly/cli	Patch
@redocly/openapi-core	Patch
@redocly/respect-core	Patch

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[DmitryAnansky]

@harshit078 you have some errors with formatting,
Could you please run the formatter from the repository root using npm run format.

"format": "oxfmt .",

This should resolve the failed code style check.

[harshit078]

Hi @DmitryAnansky, Pushed a Fix for it in the last commit. Thanks !