Implement high priority features: filters, property type boxes, email routing
- Expanded search filters: MLS property types dropdown, MLS cities (50+ listings), zip code text input
- Property type showcase boxes: 5-category grid on homepage with icons, descriptions, counts
- Multi-recipient email: Primary to office@, CC to info@, sender confirmation receipt enabled
- Added helper functions: homeproz_get_mls_property_types(), homeproz_get_mls_cities()
- Updated FEATURES_PENDING with completion status
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Co-Authored-By: Claude <noreply@anthropic.com>
