Vest: no leg opens past 8 PM ET until a sync has read the new day

The engine's Vest day now turns with the client's numbers, at the first
sync after the reset. A leg opened between 8 PM ET and that sync would be
planned and counted on the day that ended, so both the pick and the open
wait for it. The claim log's "stage N next" counts payouts the way the
engine picks its stage.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lib/vest-class.ts

@@ -777,6 +777,13 @@ export class VestClient implements PlatformClient {
         return vestDayOf(this.numbersAt > 0 ? Math.min(now, this.numbersAt) : now);
     }
 
+    /** Past 8 PM ET with the numbers still the ended day's: a leg opened now
+     *  would be planned and counted on that day, so none opens until a sync
+     *  has read the new one. */
+    private newDayUnread(now: number): boolean {
+        return this.tradeDate(now) !== vestDayOf(now);
+    }
+
     /**
      * See PlatformClient: the gain since the day's base that is still in the
      * account — since this client's own claim today, else since the reset,
@@ -1766,6 +1773,10 @@ export class VestClient implements PlatformClient {
             console.log(`${this.tag} ${root} → nothing tradable — Vest's 8 PM ET reset in ${Math.ceil(toReset / 60_000)} min`);
             return null;
         }
+        if (root !== 'survey' && this.newDayUnread(now)) {
+            console.log(`${this.tag} ${root} → nothing tradable — Vest's day has turned and no sync has read it yet`);
+            return null;
+        }
         for (const symbol of symbols) {
             const spec = specs.get(symbol);
             if (!spec) { board.push({ symbol, score: null, note: 'unknown symbol' }); continue; }
@@ -1963,6 +1974,9 @@ export class VestClient implements PlatformClient {
             if (toReset <= RESET_ENTRY_BLOCK_MS) {
                 throw new OrderNotPlacedError(`Vest's 8 PM ET reset is ${Math.ceil(toReset / 60_000)} min away — no new position until it passes`);
             }
+            if (this.newDayUnread(Date.now())) {
+                throw new OrderNotPlacedError(`Vest's day has turned and no sync has read it yet — no new position until one has`);
+            }
             const opposite = side === 'long' ? 'short' : 'long';
             const hedged = [...this.positionsDetail.values()].flat().some((p) => p.symbol === symbol && p.side === opposite)
                 || this.openingSides.get(symbol)?.side === opposite;