Brings the Flutter discover screen toward web-Koja parity. Unverified (pub blocked).
- DiscoverFilters is now a copyWith class so the many optional filters set safely.
- Adds an "open now" chip, rating chips, sort, and a taxonomy-driven filter sheet
(themes/vibes/occasions/space-features as multi-select chips + price tier),
feeding the rich discover() query. Active-filter badge + pull-to-refresh.
- Café cards show open/closed status.
Head-start on the Koja-Flutter build while pub access is unavailable (pub.dev 403
under sanctions). NOT yet built/verified — needs `flutter create` + `pub get` once
package access is restored.
- core/theme/app_theme.dart: centralized MeeziTheme (brand green #0F6E56, Material 3,
filled/outlined buttons, inputs), wired into main.dart (was a brown seed, no theme).
- public_api.dart: discover() gains the full filter set (themes/vibes/occasions/
spaceFeatures/noise/priceTier/size/openNow) + discoverNearby/nlpParse/discoverTaxonomy,
matching the web Koja's backend surface. Follows the existing dio pattern.
soroush.asadi