Auto-claim without the scheduler, and no claim twice

A payout locks in profit and opens nothing, so stopping the trading no
longer stops it: a claim watcher runs the same claims once a minute while
the scheduler is off (its tick still claims while it runs), and the
dashboard's Auto-claim payouts box turns them off.

From two independent reviews of the claim path:
- A claim holds every further claim on the account until Vest's
  transactions show its WITHDRAW. A sync already out when the claim lands
  (by sync generation, not the clock) no longer writes the pre-claim
  balance back, and a fresh sync follows the claim.
- A withdraw that fails in transit (timeout, reset, 5xx) may have gone in:
  it is recorded as of unknown outcome and holds claims the same way,
  until the transactions show it, or an hour of them shows it didn't.
- claimProfit checks Vest's own account: funded (or instant), and no more
  than the balance above its starting capital.
- A claiming account is marked in flight; runClaims sends the amount it
  re-checked under the mutex.
- The watcher starts before the rest of the init can fail; settings are
  validated before any is written.

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

lib/auto-trade.ts

@@ -1947,6 +1947,7 @@ function claimDue(client: any, acc: { id: number; active: boolean }, now: number
     if (!cfg || cfg.payoutable !== true || !acc.active) return null;
     if (client.positions[acc.id] || client.hasWorkingOrders?.(acc.id) || runtime().accountsInFlight.has(acc.id)) return null;
     if (!client.historyReady?.(acc.id)) return null;
+    if (client.claimPending?.(acc.id)) return null;
     if (now - (runtime().claimFailedAt?.get(acc.id) ?? 0) < CLAIM_RETRY_MS) return null;
     const cash = client.accountCashBalances[acc.id];
     if (!cash) return null;
@@ -1966,8 +1967,9 @@ function claimDue(client: any, acc: { id: number; active: boolean }, now: number
  * Profit). The account then starts its next stage the same day: its leg
  * counts and entry outcome for the day are cleared, and a type whose stages
  * reset each day trades its next stage on the room the claim freed. Under the
- * lane's mutex, so no batch reads an account mid-claim. Off with the
- * auto_claim setting at 'off'.
+ * lane's mutex, so no batch reads an account mid-claim. Run by the
+ * scheduler's tick, or by the claim watcher while the scheduler is off. Off
+ * with the auto_claim setting at 'off'.
  */
 async function runClaims(lane: string, ready: FirmClient[]): Promise<void> {
     if (getSetting('auto_claim') === 'off') return;
@@ -1983,12 +1985,15 @@ async function runClaims(lane: string, ready: FirmClient[]): Promise<void> {
     if (lease === null) return;
     try {
         const tradeDate = currentTradeDateCT();
-        for (const { firm, client, acc, amount } of due) {
+        for (const { firm, client, acc } of due) {
             if (!holdsTradeMutex(lease, lane)) return;
-            if (claimDue(client, acc, Date.now()) === null) continue; // settled since
+            // Settled since, or a different amount now: claim what is due now.
+            const amount = claimDue(client, acc, Date.now());
+            if (amount === null) continue;
             try {
-                // eslint-disable-next-line @typescript-eslint/no-explicit-any
-                const { claimed, received } = await (client as any).claimProfit(acc.id, amount);
+                // In flight while it claims: a batch that takes over a wedged
+                // lane, or a Claim now, leaves the account alone.
+                const { claimed, received } = await withAccountInFlight(acc.id, () => client.claimProfit!(acc.id, amount));
                 afterClaim('[auto-claim]', firm, client, acc, claimed, received, tradeDate);
             } catch (err) {
                 (runtime().claimFailedAt ??= new Map()).set(acc.id, Date.now());
@@ -2000,6 +2005,43 @@ async function runClaims(lane: string, ready: FirmClient[]): Promise<void> {
     }
 }
 
+/** How often auto-claims run while the scheduler is off — its tick's pace. */
+const CLAIM_WATCH_MS = 60_000;
+
+const _claimWatch = globalThis as typeof globalThis & { __claimWatcher?: ReturnType<typeof setInterval>; __claimTickBusy?: boolean };
+
+/**
+ * Auto-claims don't wait on the scheduler: a payout locks in profit and
+ * opens nothing, so stopping the trading doesn't stop it — a funded account
+ * at its target while the bot is off is claimed all the same, before
+ * whatever trades it next can take the profit back. While the scheduler
+ * runs, its own tick claims (first thing in each lane), and this stays out
+ * of the way. Off with the auto_claim setting at 'off'. Started once, with
+ * the clients.
+ */
+export function startClaimWatcher(): void {
+    if (_claimWatch.__claimWatcher) return;
+    _claimWatch.__claimWatcher = setInterval(() => { void claimTick(); }, CLAIM_WATCH_MS);
+}
+
+async function claimTick(): Promise<void> {
+    if (getState().running || getSetting('auto_claim') === 'off' || _claimWatch.__claimTickBusy) return;
+    _claimWatch.__claimTickBusy = true;
+    try {
+        // Ready clients only, as the tick: a stale snapshot may hide a
+        // position. runClaims takes each lane's mutex itself.
+        const { ready } = firmClients();
+        for (const lane of tradableLanes()) {
+            if (getState().running) return; // the scheduler took over
+            await runClaims(lane, ready);
+        }
+    } catch (err) {
+        console.error(`[auto-claim] ${errorMessage(err)}`);
+    } finally {
+        _claimWatch.__claimTickBusy = false;
+    }
+}
+
 /** A claim went through: the account starts its next stage — the day's leg
  *  count and entry outcome are cleared, as if it hadn't traded today. */
 function afterClaim(
@@ -2043,6 +2085,7 @@ function manualClaim(accountId: number):
         return { reason: 'a position or order is open — the account must be flat' };
     }
     if (!client.historyReady(acc.id)) return { reason: 'its history is still loading' };
+    if (client.claimPending?.(acc.id)) return { reason: 'the last claim is still settling — wait for the next sync' };
     const cash = client.accountCashBalances[acc.id];
     if (!cash) return { reason: 'its balance has not been read yet' };
     const profit = Math.floor((cash.amount - cfg.accountSize) * 100) / 100;
@@ -2084,7 +2127,7 @@ export async function claimAccountNow(accountId: number, amount: number): Promis
         if ('reason' in c) throw new ClaimRefusedError(c.reason);
         if (!(amount >= 1)) throw new ClaimRefusedError(`$${amount} is below the $1 minimum claim`);
         if (amount > c.amount + 0.005) throw new ClaimRefusedError(`only $${c.amount.toFixed(2)} is claimable now`);
-        const { claimed, received } = await c.client.claimProfit!(c.acc.id, amount);
+        const { claimed, received } = await withAccountInFlight(c.acc.id, () => c.client.claimProfit!(c.acc.id, amount));
         const stage = afterClaim('[claim-now]', c.firm, c.client, c.acc, claimed, received, currentTradeDateCT());
         return { claimed, received, stage };
     } finally {