chore: refactor @packages/https-proxy to TypeScript and use vitest instead of mocha

[AtofStryker]

• Closes N/A

Additional details

Converts the @packages/https-proxy package to TypeScript and makes it a bundled package that ships with declaration types. Additionally, the mocha tests have been replaced with vitest tests.

For the most part, the conversion is 1:1 with the removal of bluebird usage and refactoring to use async/await. Types have also been added heavily to make editing the package much simpler.

The test that changed the most was the ca.spec.ts test as the tests that were in place before didn't have a lot of value on asserting in/out conditions. Instead, these tests have been rewritten to be more of a black box like test to test the main scenarios of the .create function.

Steps to test

How has the user experience changed?

PR Tasks

• Have tests been added/updated?
• Has a PR for user-facing changes been opened in cypress-documentation?
• Have API changes been updated in the type definitions?

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Note

Rewrites @packages/https-proxy in TypeScript with CJS/ESM outputs and Vitest tests, removes Bluebird/Mocha, and updates all call sites and configs accordingly.

• @packages/https-proxy:
  • TypeScript rewrite; replace Bluebird with async/await and remove Mocha/Sinon.
  • New build outputs (cjs/, esm/), updated package.json (main/module/types, build scripts), tsconfigs, and Vitest config.
  • Public exports now via lib/index.ts (createProxy, resetProxy, CA).
  • Test helpers (http_server, https_server, certs) ported to TS; README notes test parallelism.
• Consumers updated:
  • packages/server/lib/server-base.ts: use { createProxy as createHttpsProxy }.
  • packages/driver and system-tests: replace httpsProxy.httpsServer with test helper createHttpsServer; minor fs API fix.
  • Tests and utils updated to import { CA } from new entry; remove legacy spec helper usage.
  • tooling/v8-snapshot: force-no-rewrite path adjusted to packages/https-proxy/cjs/ca.js.
• CI/Docs:
  • CircleCI: expected mocha result files reduced (8 → 7); cache version bumped.
  • ESM migration guide: mark packages/https-proxy as completed.

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[cypress]

cypress    Run #66482

Run Properties:   Passed #66482  •  1a0d558f5d: Update packages/https-proxy/vitest.config.ts

Project	cypress
Branch Review	chore/refactor-https-proxy
Run status	Passed #66482
Run duration	20m 28s
Commit	1a0d558f5d: Update packages/https-proxy/vitest.config.ts
Committer	Bill Glesias
View all properties for this run ↗︎

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Test results
Failures	0
Flaky	17
Pending	1102
Skipped	4
Passing	26731
View all changes introduced in this branch ↗︎

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Warning

Partial Report: The results for the Application Quality reports may be incomplete.

UI Coverage  45.27%
Untested elements	186
Tested elements	158

Accessibility  97.97%
Failed rules	4 critical   8 serious   2 moderate   2 minor
Failed elements	101

[jennifer-shehane]

Few comments

[cypress-bot]

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