feat(auth0-auth-js): add revokeToken support

[jd3vi1]

Summary

• Adds AuthClient.revokeToken() which calls the RFC 7009 /oauth/revoke endpoint
• Introduces TokenRevocationError for failed revocations, exported from the public surface
• Adds RevokeTokenOptions type (token + optional tokenTypeHint)

Test plan

• should successfully revoke a token — verifies token and hint are sent correctly
• should revoke a token without tokenTypeHint — verifies hint is omitted when not provided
• should throw TokenRevocationError when revocation fails — verifies error wrapping on 400 response
• should send client credentials on the revocation request — verifies client_id and client_secret are included

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Review details

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Configuration used: defaults

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Run ID: 0c27f300-c40e-4581-a624-9b7680533450

📥 Commits

Reviewing files that changed from the base of the PR and between 21e9777 and 197f240.

📒 Files selected for processing (4)

• packages/auth0-auth-js/src/auth-client.spec.ts
• packages/auth0-auth-js/src/auth-client.ts
• packages/auth0-auth-js/src/errors.ts
• packages/auth0-auth-js/src/types.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/SDK-8850-auth0-auth-js

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