eject: interactive mode only allows selecting one pattern

[ch-bas]

CLI version: 0.13.1

frontfamily eject data-table auth-form nav-bar -f react-mui works — multiple patterns are fully supported as arguments, with per-pattern coverage counts and an ejected/skipped summary. But the interactive prompt (running plain frontfamily eject) uses a single-select, so users can only pick one pattern per run.

Suggested fix: switch the pattern prompt to a multiselect. The downstream loop already handles multiple patterns.