feat: slow-payer and appeal-scorecard checks on the Run review page

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

src/api/config.ts

@@ -201,6 +201,7 @@ export const FINDING_KIND: Record<string, string> = {
   coding: 'Coding',
   provider_coding: 'Single provider — coding',
   underpayment: 'Underpayment',
+  slow_payer: 'Slow payer',
   documentation: 'Documentation',
   medical_necessity: 'Medical necessity',
   timely_filing: 'Timely filing',

src/screens/RunReviewScreen.tsx

@@ -67,10 +67,13 @@ export function RunReviewScreen() {
               <li>Denial rate vs 8-week baseline: by payer, reason code, department, front desk, week, procedure, provider</li>
               <li>Unfiled appeals with deadlines within 14 days</li>
               <li>Underpayments: paid vs allowed by payer and procedure, vs baseline</li>
+              <li>Slow payers: claims sent 31–60 days ago still unanswered, by payer</li>
+              <li>Appeal scorecard: overturn rate by payer, used to size recoveries and order appeal work</li>
             </ul>
             <p className="mt-2 text-xs text-faint">
               Materiality threshold: denied count up more than 40% on at least 25 claims; more than
-              $100K in appeals expiring; or paid/allowed down more than 10 points or a $50K shortfall.
+              $100K in appeals expiring; paid/allowed down more than 10 points or a $50K shortfall;
+              or more than a quarter of a payer's month-old claims still unanswered, worth over $250K.
               Items below the threshold are listed, not flagged.
             </p>
             <p className="mt-2 inline-flex items-center gap-1.5 text-xs text-faint">