- Replace dropdown search results with full-screen modal
- Add 4-tier filter chips: subtitle group, resolution, subtitle type, season
- Auto-extract filter options from search results
- Add confirmation modal before subscribing
- Support toggle close (click search input, Escape, or X button)
- Responsive grid layout: 1-4 columns based on viewport
- SSE streaming with fade-in card animations
- Add i18n translations for search filters and confirmation
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
