Add ACMCC app source, Supabase backend, and project config

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

supabase/migrations/20260417223520_30e46a11-ae35-4a8e-b178-b1cf4f183418.sql

@@ -0,0 +1,19 @@
+-- Make the 'files' bucket public so existing getPublicUrl links resolve.
+-- The codebase already calls getPublicUrl() on this bucket and stores the URL
+-- in documents.file_url, so the bucket must be public for those links to load.
+UPDATE storage.buckets SET public = true WHERE id = 'files';
+
+-- Ensure a public SELECT policy exists for this bucket.
+DO $$
+BEGIN
+  IF NOT EXISTS (
+    SELECT 1 FROM pg_policies
+    WHERE schemaname = 'storage'
+      AND tablename = 'objects'
+      AND policyname = 'Files bucket public read'
+  ) THEN
+    CREATE POLICY "Files bucket public read"
+      ON storage.objects FOR SELECT
+      USING (bucket_id = 'files');
+  END IF;
+END $$;