refactor: migrate GatorPermissionsController to @metamask/messenger

[mikesposito]

Explanation

This PR migrates GatorPermissionsController to the new @metamask/messenger message bus, 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 GatorPermissionsController to @metamask/messenger, updates Base Controller imports/metadata, refactors tests, and wires package/graph updates.

• Breaking changes:
  • Move from RestrictedMessenger (via @metamask/base-controller) to Messenger from @metamask/messenger in GatorPermissionsController and tests.
  • Rename state metadata key anonymous to includeInDebugSnapshot; switch imports to @metamask/base-controller/next.
• Controller (packages/gator-permissions-controller/src/GatorPermissionsController.ts):
  • Replace messagingSystem usages with messenger (registerActionHandler, call).
  • Update GatorPermissionsControllerMessenger type to use Messenger.
  • Preserve state shape; keep getters/actions; no behavior change beyond messenger plumbing.
• Tests (packages/gator-permissions-controller/src/GatorPermissionsController.test.ts):
  • Refactor to new Messenger types/utilities; introduce root/delegated messenger setup; update metadata tests to includeInDebugSnapshot.
• Package config:
  • Add dependency @metamask/messenger and TypeScript project references to packages/messenger.
• Docs/graph:
  • Update README dependency graph to show base_controller --> messenger and gator_permissions_controller --> messenger; add eip_7702_internal_rpc_middleware edge.
• Changelog:
  • Note breaking migration to @metamask/messenger and metadata rename under Unreleased.

^{Written by Cursor Bugbot for commit 15b0e0c. This will update automatically on new commits. Configure here.}

[mcmire]

Need to resolve conflicts :(

[cryptodev-2s]

LGTM!