Implement useMessageActions and useMessageUnreadCount hooks following strict TDD principles (RED → GREEN → REFACTOR).
useMessageActions provides:
- markRead(id) - mark single message as read
- batchMarkRead(ids) - batch mark messages as read
- deleteMessage(id) - delete message
- Independent loading/error states for each operation
useMessageUnreadCount provides:
- Fetch total unread count and counts by message type
- refetch() method for manual refresh
- loading and error state management
All operations use MessageController from SDK with proper error handling.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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