Add configurable trading hours setting

Dropdown on settings page with two options:
- Full CME (5:00 PM – 3:00 PM CT) with 5 min buffer
- Equity Hours (8:30 AM – 3:00 PM CT) with 5 min buffer
Setting is read live each tick, no restart needed.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lib/auto-trade.ts

@@ -51,39 +51,54 @@ function mapFirmConfig(firm: FirmWithAccounts): FirmConfig {
 // ── helpers ───────────────────────────────────────────────────────────────────
 
 /**
- * Returns true when CME futures markets are closed.
- * CME hours: Sunday 5:00 PM – Friday 4:00 PM Central, with a daily halt 4:00–5:00 PM.
- * So we block trading when:
- *   - It's 3:00 PM – 4:59 PM Central (stop early + daily halt)
- *   - It's Saturday (all day)
- *   - It's Sunday before 5:00 PM Central
- *   - It's Friday after 3:00 PM Central
+ * Returns true when trading is not allowed based on the trading_hours setting.
+ *
+ * "full_cme"     — Sun 5:05 PM – Fri 2:55 PM Central (5 min buffer on each side)
+ * "equity_hours" — 8:35 AM – 2:55 PM Central, Mon–Fri (5 min buffer on each side)
  */
 function isInNoTradeWindow(): boolean {
     const now = new Date();
-    const centralTime = new Intl.DateTimeFormat('en-US', {
+    const centralParts = new Intl.DateTimeFormat('en-US', {
         hour: 'numeric',
+        minute: 'numeric',
         hour12: false,
         timeZone: 'America/Chicago',
-    });
-    const centralDay = new Intl.DateTimeFormat('en-US', {
+    }).formatToParts(now);
+    const hour = parseInt(centralParts.find((p) => p.type === 'hour')!.value, 10);
+    const minute = parseInt(centralParts.find((p) => p.type === 'minute')!.value, 10);
+    const day = new Intl.DateTimeFormat('en-US', {
         weekday: 'short',
         timeZone: 'America/Chicago',
-    });
-    const hour = parseInt(centralTime.format(now), 10);
-    const day = centralDay.format(now); // "Sun", "Mon", ... "Sat"
+    }).format(now); // "Sun", "Mon", ... "Sat"
+    const timeMinutes = hour * 60 + minute; // minutes since midnight
+
+    const mode = getSetting('trading_hours') ?? 'full_cme';
+
+    if (mode === 'equity_hours') {
+        // Equity hours: 8:30 AM – 3:00 PM Central with 5 min buffer = 8:35 AM – 2:55 PM
+        // Weekdays only
+        if (day === 'Sat' || day === 'Sun') return true;
+        const open = 8 * 60 + 35;   // 8:35 AM
+        const close = 14 * 60 + 55;  // 2:55 PM
+        return timeMinutes < open || timeMinutes >= close;
+    }
+
+    // Full CME: Sun 5:00 PM – Fri 4:00 PM Central with 5 min buffer
+    // Open: 5:05 PM, Close: 2:55 PM (stop early), Daily halt: 2:55 PM – 5:05 PM
 
     // Saturday — market closed all day
     if (day === 'Sat') return true;
 
-    // Sunday — market opens at 5 PM Central
-    if (day === 'Sun' && hour < 17) return true;
+    // Sunday — market opens at 5:05 PM Central
+    const cmeOpen = 17 * 60 + 5;  // 5:05 PM
+    if (day === 'Sun') return timeMinutes < cmeOpen;
 
-    // Friday — stop trading after 3 PM Central
-    if (day === 'Fri' && hour >= 15) return true;
+    // Friday — stop trading at 2:55 PM Central
+    const cmeClose = 14 * 60 + 55; // 2:55 PM
+    if (day === 'Fri' && timeMinutes >= cmeClose) return true;
 
-    // Mon–Thu: stop trading after 3 PM Central (market halts at 4 PM, reopens 5 PM)
-    if (hour >= 15 && hour < 17) return true;
+    // Mon–Thu: block 2:55 PM – 5:05 PM Central (early stop + daily halt + buffer)
+    if (timeMinutes >= cmeClose && timeMinutes < cmeOpen) return true;
 
     return false;
 }

lib/db.ts

@@ -164,6 +164,7 @@ seedSetting.run('max_concurrent_accounts', '5');
 seedSetting.run('tick_interval_seconds', '60');
 seedSetting.run('master_dashboard_url', '');
 seedSetting.run('instance_name', '');
+seedSetting.run('trading_hours', 'full_cme');
 
 export function getSetting(key: string): string | null {
     const row = db.prepare('SELECT value FROM settings WHERE key = ?').get(key) as { value: string } | undefined;