Report each account's last traded trade date

Sessions roll at 5 PM CT, so after tonight's open a day booked on
tomorrow's trade date is already in the day count — lastDay is what lets
the master tell those accounts apart from ones that have not traded the
current session yet.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

lib/master-protocol.ts

@@ -40,6 +40,10 @@ export interface AccountTypeStats {
     payoutStates?: {
         days: number; profit: number; maxDay: number; sum: number; high: number;
         withdrawals?: number; target?: number; consistency?: number; minDays?: number;
+        /** Trade date (YYYY-MM-DD) of the account's most recent traded day —
+         *  after the 5 PM CT roll a day booked on tomorrow's trade date is
+         *  already counted in `days`. */
+        lastDay?: string;
     }[];
 }
 

lib/reporter.ts

@@ -121,6 +121,7 @@ function collectFirmStats() {
                     cfg.targetSameEquity, cfg.withdrawalStages,
                     client.priorProfit?.[acc.id] ?? 0, fundTxns,
                 );
+                const traded = combined.dailyPnL.filter((d) => d.pnl !== 0);
                 (slice.payoutStates ??= []).push({
                     days: qualifying.length,
                     profit: equityProfit,
@@ -131,6 +132,7 @@ function collectFirmStats() {
                     target: effective.profitTarget,
                     consistency: effective.consistency,
                     minDays: effective.minTradingDays,
+                    lastDay: traded.length > 0 ? traded.reduce((a, b) => (a.date > b.date ? a : b)).date : undefined,
                 });
             }