refactor: migrate {AbstractMessage,DecryptMessage,EncryptionPublicKey}Manager to @metamask/messenger

[cryptodev-2s]

Explanation

This PR migrates AbstractMessageManager, EncryptionPublicKeyManager and DecryptMessageManager 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

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Note

Migrates AbstractMessageManager, DecryptMessageManager, and EncryptionPublicKeyManager to the new @metamask/messenger API, updating types/events and wiring, and adds the messenger dependency.

• Message Manager (breaking)
  • Switch from RestrictedMessenger (@metamask/base-controller) to Messenger (@metamask/messenger) across AbstractMessageManager, DecryptMessageManager, and EncryptionPublicKeyManager.
  • Update publish calls to use this.messenger.publish and rework action/event typings (ControllerGetStateAction, ControllerStateChangeEvent).
  • Adjust state metadata keys (anonymous → includeInDebugSnapshot).
• Tests
  • Update mocks and types to use Messenger and new metadata flag.
• Configs/Dependencies
  • Add @metamask/messenger dependency and TypeScript project references.
  • Update README dependency graph to show message_manager → messenger and add new edge for eip-7702-internal-rpc-middleware.

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