Add ACMCC app source, Supabase backend, and project config

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

supabase/migrations/20260327173629_225b796b-13d4-440d-81a9-9611ad7c4750.sql

@@ -0,0 +1,34 @@
+
+-- Add unit_id to payment_plans
+ALTER TABLE public.payment_plans ADD COLUMN IF NOT EXISTS unit_id UUID REFERENCES public.units(id);
+
+-- Create installments table to track individual payments
+CREATE TABLE public.payment_plan_installments (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  payment_plan_id UUID NOT NULL REFERENCES public.payment_plans(id) ON DELETE CASCADE,
+  installment_number INT NOT NULL,
+  due_date DATE NOT NULL,
+  amount_due NUMERIC NOT NULL DEFAULT 0,
+  amount_paid NUMERIC NOT NULL DEFAULT 0,
+  paid_date DATE,
+  status TEXT NOT NULL DEFAULT 'pending',
+  notes TEXT,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+ALTER TABLE public.payment_plan_installments ENABLE ROW LEVEL SECURITY;
+
+CREATE POLICY "Staff can manage installments"
+ON public.payment_plan_installments
+FOR ALL TO authenticated
+USING (
+  has_role(auth.uid(), 'admin'::app_role) OR
+  has_role(auth.uid(), 'manager'::app_role) OR
+  has_role(auth.uid(), 'employee'::app_role)
+)
+WITH CHECK (
+  has_role(auth.uid(), 'admin'::app_role) OR
+  has_role(auth.uid(), 'manager'::app_role) OR
+  has_role(auth.uid(), 'employee'::app_role)
+);