feat: export token scan types

[imblue-dabadee]

Explanation

Exports TokenScanCacheData and TokenScanResultType so that users of the PhishingController do not need to create their own types when accessing cache entries within the token scan cache.

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed, highlighting breaking changes as necessary
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes

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Note

Exports TokenScanCacheData and TokenScanResultType from src/index.ts and documents the change in the changelog.

• phishing-controller
  • Exports: Add TokenScanCacheData and TokenScanResultType to public exports in src/index.ts.
  • Docs: Update CHANGELOG.md under Unreleased to note these new exports.

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