[ML 0.5/MVI.03] - Advanced Actions & Logic Extraction

🎯 The objective

Migrate complex actions (move, archive, outbox sending) and sorting logic to Use Cases. This milestone completes the decoupling of the MessageListFragment from the HomeScreenActivity.

🎒 Resources

🦮 Rules of the Road

🟢 In Scope

• Extract "Move" action to MoveMessageUseCase
• Extract "Archive" action to ArchiveMessageUseCase
• Modify "Setup archive folder" dialog to be triggered by a VM Effect
• Extract "Send messages" (Outbox) to SendPendingMessagesUseCase
• Extract "Change sort" logic to ChangeMessageSortingUseCase

🔴 Out of Scope

• New feature development not related to refactoring.

🚧 Technical and/or Business Requirements

• Archive Flow: The "Setup archive folder" dialog must be triggered by a specific Effect from the ViewModel, likely depending on the result of the ArchiveMessageUseCase.
• Sorting Logic:
  • Extract sorting logic from MessageListFragment to ChangeMessageSortingUseCase.
  • Logic must save the selected sorting option and ensure the message list refreshes based on the new sort order.
• Decoupling: Ensure MessageListFragment listeners are fully decoupled from HomeScreenActivity.