Add ACMCC app source, Supabase backend, and project config

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

supabase/migrations/20260429120940_8ce98ff7-9f00-472c-8b03-034e1fdb43d9.sql

@@ -0,0 +1,28 @@
+-- Allow RV renters/owners to discover and self-link a rental that was created
+-- with their email but never had user_id set yet. This supports the renter
+-- portal's email-based fallback (renters often have no owners record).
+
+CREATE POLICY "RV renters can view rental matching their email"
+ON public.rv_boat_lot_rentals
+FOR SELECT
+TO authenticated
+USING (
+  user_id IS NULL
+  AND status = 'active'
+  AND renter_email IS NOT NULL
+  AND lower(renter_email) = lower(coalesce((auth.jwt() ->> 'email'), ''))
+);
+
+CREATE POLICY "RV renters can self-link rental by email"
+ON public.rv_boat_lot_rentals
+FOR UPDATE
+TO authenticated
+USING (
+  user_id IS NULL
+  AND status = 'active'
+  AND renter_email IS NOT NULL
+  AND lower(renter_email) = lower(coalesce((auth.jwt() ->> 'email'), ''))
+)
+WITH CHECK (
+  user_id = auth.uid()
+);