v2.0.0

### New Features * add asset upload system for developments, builders, and communities * add team-based billing with Stripe subscriptions for development promotions * add development name, floorplan system, and half-bathroom support * add CSV import for builders with fuzzy deduplication * add development search, email preview, and project links * integrate Imgix CDN for image optimization * integrate Sonner toasts and replace window.confirm with AlertDialog * public development detail page with builder profile and realtor placement * add backdrop blur to sheet overlay ### Bug Fixes * exclude unpublished developments from search index * add missing feedback API route