- Add subtype database columns to all accountable models
- Create Stimulus controller for dynamic subtype dropdown interaction
- Add delegation from Account to accountable subtype for clean API access
- Update SimpleFin account setup form with working subtype selection
- Fix account display to show proper subtype labels instead of generic "Cash"
Users can now select both account type and subtype during SimpleFin import,
and the selected subtypes are properly saved and displayed in the UI.
- Create SimplefinItemsController with CRUD operations
- Add account setup flow with user type selection
- Include sync management and error handling
- Update AccountsController to display SimpleFin items
- Add routes for SimpleFin item management and setup
