refactor: migrate AddressBookController to @metamask/messenger

[mikesposito]

Explanation

This PR migrates the AddressBookController class to the new @metamask/messenger comm system, as opposed to the one exported from @metamask/base-controller.

References

• Related to Implement messenger delegation #5626

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

---

Note

Migrates AddressBookController to the new @metamask/messenger API, updates metadata flag, tests, and package references.

• Address Book Controller:
  • Switch to @metamask/messenger and @metamask/base-controller/next APIs; update AddressBookControllerMessenger type.
  • Replace messagingSystem.publish/registerActionHandler with messenger.publish/registerActionHandler.
  • Rename metadata flag from anonymous to includeInDebugSnapshot.
• Tests (packages/address-book-controller/src/AddressBookController.test.ts):
  • Use new Messenger with root/namespace setup; subscribe via root messenger.
  • Update metadata assertions to includeInDebugSnapshot.
• Package/Build/Docs:
  • Add dependency @metamask/messenger and TS project references; update README dependency graph.
  • Changelog: note BREAKING changes for new messenger and metadata flag rename.

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[mcmire]

LGTM!

[mcmire]

One minor thing Cursor noticed, but LGTM regardless.

[mcmire]

Hmm, yes. Perhaps we can remove the other type assertion?

[cryptodev-2s]

LGTM!