:APP Part_4 Folder rename

[IntFxZen]

Overview

This PR introduces the folder rename flow in the UI layer and wires it end-to-end through the existing architecture.
The change keeps the scope small and focused: add rename behavior without expanding into unrelated note/folder features.

Changes

• Domain UseCases Wiring: Added UpdateFolderUseCase and GetFolderUseCase into app-level DI and NotesUseCases aggregation.
• UI Contract: Extended NotesUiEvent with RenameDirectory to formalize rename intent between UI and ViewModel.
• ViewModel Logic: Implemented rename handling in NotesViewModel with input normalization and guardrails (blank names and all folder protection).
• UI Interaction: Updated DirectoriesScreen long-press flow to support directory actions and added rename dialog with prefilled current name.
• App Wiring: Connected rename callback from NotesApp to NotesViewModel event dispatch.