Implement launch blockers and MLS state filter

- Add MLS state filter for MN/IA only queries
- Add property inquiry form auto-population with read-only display
- Update broker info and office hours in footer
- Remove Bridge Realty text from about page
- Update service area to Minnesota and Iowa
- Add HomeProz listing identification (is_homeproz column)
- Add dynamic featured listings on front page
- Add gallery thumbnail preloading and loading spinners
- Update FEATURES_PENDING with completion status

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

wp-content/plugins/mls-by-hansonxyz/includes/class-mls-sync-engine.php

@@ -694,6 +694,7 @@ class MLS_Sync_Engine {
             'list_office_key' => $property['ListOfficeKey'] ?? null,
             'list_office_mls_id' => $property['ListOfficeMlsId'] ?? null,
             'list_office_name' => $property['ListOfficeName'] ?? null,
+            'is_homeproz' => (($property['ListOfficeMlsId'] ?? '') === MLS_HOMEPROZ_OFFICE_ID) ? 1 : 0,
 
             'photos_count' => $property['PhotosCount'] ?? 0,
             'modification_timestamp' => $this->format_timestamp($property['ModificationTimestamp'] ?? null),