Add ACMCC app source, Supabase backend, and project config

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

supabase/migrations/20260414185709_46142d48-05a9-4058-86df-640e259efc84.sql

@@ -0,0 +1,11 @@
+CREATE POLICY "Board members can view their association violations"
+ON public.violations
+FOR SELECT
+TO authenticated
+USING (
+  association_id IN (
+    SELECT bm.association_id
+    FROM public.board_members bm
+    WHERE bm.user_id = auth.uid()
+  )
+);