1. Extract hardcoded German highlight patterns into locale-specific sets
(de, en, fr, it, es). InputBar accepts `locale` or custom
`highlightPatterns` prop, defaulting to German for backward compat.
2. Add visual success feedback after creating: input bar flashes green
with a checkmark icon for 1.2s, confirming the action was successful.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
