Vest: claim the profit at the target, then trade again the same day

On Vest, a claim lowers the daily-loss floor by the amount claimed. Winning
$1,500 and claiming it leaves $3,000 of room the same day, the full
drawdown. The bot now uses that.

- Payout claims: a scheduler step (runClaims, under the lane mutex, before
  the flat gate) claims every payoutable account that reached its stage's
  target, via a platform that takes payouts by API. The claim is all
  profit above the starting balance. It then clears the account's legs and
  entry outcome for the day so it can trade its next stage. Failures retry
  after 5 minutes. The auto_claim setting 'off' disables it.
- VestClient.claimProfit: POST /v3/capital/withdraw to the login's main
  account (account_type 1 on /v3/accounts). The payout is booked at once:
  today's fund row and the cycle cut, with today's P&L counted from the
  post-claim balance. The history read later rebooks it from Vest's
  WITHDRAW row, and the books check counts a claim until that row shows.
- Same-day stages: an account type can pick its stage by the payouts since
  the firm's last daily reset (stagesSameDay, sameDayClaims). A stage can
  carry its own daily loss limit.
- That limit replaces the type's everywhere room, stops and last stands are
  worked out: the batch, the manual leg, copy trade, the dashboard and the
  report.
- Room from the platform's own floor: dailyLossFloor (Vest) makes the room
  min(stage limit, balance − Vest's floor). A same-day claim that lowers
  the floor therefore frees room, and the room is never more than Vest
  allows. VestClient.dayStartBalance is gone.
- Before the 8 PM ET reset: from 7:55 PM ET, each open Vest position on an
  account with a daily limit is fitted to the room the reset will leave
  (resetSafeStop). Its stop comes in via PUT/POST stop-loss, or the
  position closes when there is no room.
- Checks for same-day stages, the stage limit, floorRoom, the post-claim
  plan, the next reset across both time changes, and resetSafeStop.

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

lib/vest-helpers.ts

@@ -92,6 +92,58 @@ export function lastVestResetMs(now: number): number {
     return NaN;
 }
 
+/** The next 20:00 ET after `now`, epoch ms (a day can be 23 or 25 hours). */
+export function nextVestResetMs(now: number): number {
+    for (let h = 1; h <= 26; h++) {
+        const t = lastVestResetMs(now + h * 3_600_000);
+        if (t > now) return t;
+    }
+    return NaN;
+}
+
+/**
+ * What to do with an open position before the daily reset so the reset can't
+ * breach it. At 20:00 ET Vest captures the realized balance (collateral in,
+ * unrealized P&L out) and sets the day's floor to balance × (1 − rate); the
+ * max-drawdown floor stays. A position whose loss allowance is wider than
+ * that next-day room would breach the moment the reset lands, so its stop
+ * comes in to where equity stays above the coming floor plus `reserve`, with
+ * the exit fee paid:
+ *   'none'  — its stop is already at least that tight;
+ *   'stop'  — move (or place) the stop at `price`, on the tick grid, rounded
+ *             toward the position's safe side;
+ *   'close' — no room at all, or the mark is already past that price.
+ */
+export function resetSafeStop(o: {
+    side: 'long' | 'short';
+    quantity: number;
+    openPrice: number;
+    mark: number;
+    /** Realized balance, collateral included — what the reset captures. */
+    balance: number;
+    dailyLossPct: number;
+    maxDrawdownFloor: number | undefined;
+    reserve: number;
+    /** Taker fee as a fraction of notional. */
+    exitFeeRate: number;
+    currentStop: number | null;
+    tick: number;
+}): { action: 'none' } | { action: 'stop'; price: number } | { action: 'close' } {
+    const floor = Math.max(o.balance * (1 - o.dailyLossPct), o.maxDrawdownFloor ?? -Infinity);
+    const exitFee = o.exitFeeRate * o.quantity * (Number.isFinite(o.mark) && o.mark > 0 ? o.mark : o.openPrice);
+    const allowed = o.balance - floor - o.reserve - exitFee;
+    if (!(allowed > 0) || !(o.quantity > 0)) return { action: 'close' };
+    const long = o.side === 'long';
+    const raw = long ? o.openPrice - allowed / o.quantity : o.openPrice + allowed / o.quantity;
+    const price = o.tick > 0
+        ? (long ? Math.ceil(raw / o.tick - 1e-9) * o.tick : Math.floor(raw / o.tick + 1e-9) * o.tick)
+        : raw;
+    const rounded = Number(price.toFixed(10));
+    if (o.currentStop !== null && (long ? o.currentStop >= rounded : o.currentStop <= rounded)) return { action: 'none' };
+    if (Number.isFinite(o.mark) && (long ? o.mark <= rounded : o.mark >= rounded)) return { action: 'close' };
+    return { action: 'stop', price: rounded };
+}
+
 // ── accounts ────────────────────────────────────────────────────────────────
 
 export interface VestCapitalAccount {