Fix MySQL support and TUI auto-confirm mode

- Fix format detection to read database_type from .meta.json metadata file
- Add ensureMySQLDatabaseExists() for MySQL/MariaDB database creation
- Route database creation to correct implementation based on db type
- Add TUI auto-forward in auto-confirm mode (no input required for debugging)
- All TUI components now exit automatically when --auto-confirm is set
- Fix status view to skip loading in auto-confirm mode

internal/tui/backup_manager.go

@@ -61,6 +61,10 @@ func (m BackupManagerModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 
 		// Get free space (simplified - just show message)
 		m.message = fmt.Sprintf("Loaded %d archive(s)", len(m.archives))
+		// Auto-forward in auto-confirm mode
+		if m.config.TUIAutoConfirm {
+			return m.parent, tea.Quit
+		}
 		return m, nil
 
 	case tea.KeyMsg: