Add ACMCC app source, Supabase backend, and project config

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

supabase/migrations/20260511231254_53741e2b-db93-41cd-b03d-94cc800874c1.sql

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+CREATE OR REPLACE FUNCTION public.get_required_approvals_for_bill(p_bill_id uuid)
+ RETURNS integer
+ LANGUAGE plpgsql
+ STABLE SECURITY DEFINER
+ SET search_path TO 'public'
+AS $function$
+DECLARE
+  v_assoc uuid;
+  v_amount numeric;
+  v_vendor text;
+  v_rule public.bill_approval_rules%ROWTYPE;
+  v_required integer;
+BEGIN
+  SELECT b.association_id, b.amount, COALESCE(v.name, b.notes, '')
+  INTO v_assoc, v_amount, v_vendor
+  FROM public.bills b
+  LEFT JOIN public.vendors v ON v.id = b.vendor_id
+  WHERE b.id = p_bill_id;
+
+  IF v_assoc IS NULL THEN RETURN NULL; END IF;
+
+  SELECT * INTO v_rule FROM public.bill_approval_rules WHERE association_id = v_assoc;
+  IF v_rule.id IS NULL OR v_rule.enabled = false THEN
+    RETURN NULL;
+  END IF;
+
+  SELECT required_approvals INTO v_required
+  FROM public.bill_approval_rule_vendor_exceptions
+  WHERE rule_id = v_rule.id AND lower(vendor_name) = lower(v_vendor)
+  LIMIT 1;
+  IF v_required IS NOT NULL THEN RETURN v_required; END IF;
+
+  SELECT required_approvals INTO v_required
+  FROM public.bill_approval_rule_thresholds
+  WHERE rule_id = v_rule.id
+    AND COALESCE(v_amount,0) >= min_amount
+    AND (max_amount IS NULL OR COALESCE(v_amount,0) <= max_amount)
+  ORDER BY min_amount DESC
+  LIMIT 1;
+  IF v_required IS NOT NULL THEN RETURN v_required; END IF;
+
+  RETURN v_rule.required_approvals;
+END;
+$function$;