Add ACMCC app source, Supabase backend, and project config

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

supabase/migrations/20260327223341_bea9ce67-5381-423e-a6e4-34ddb67b3aaf.sql

@@ -0,0 +1,12 @@
+
+-- Add monthly assessment amount to units (unit-level override)
+ALTER TABLE public.units ADD COLUMN IF NOT EXISTS monthly_assessment numeric DEFAULT null;
+
+-- Add assessment scheduling fields to association_fee_rules
+ALTER TABLE public.association_fee_rules 
+  ADD COLUMN IF NOT EXISTS default_assessment_amount numeric DEFAULT 0,
+  ADD COLUMN IF NOT EXISTS assessment_day integer DEFAULT 1,
+  ADD COLUMN IF NOT EXISTS assessment_frequency text DEFAULT 'monthly';
+
+-- Add interest opt-in flag to owners
+ALTER TABLE public.owners ADD COLUMN IF NOT EXISTS interest_opt_in boolean DEFAULT false;