feat: Mobile optimization and UI improvements

- Add mobile hamburger menu in TopBar with slide-in panel
- Optimize all components for mobile (responsive fonts, spacing, touch targets)
- Add proper viewport meta tags and safe area padding
- Fix /jackpot/next API to return active cycles regardless of scheduled time
- Remove BTC display from jackpot pot (show sats only)
- Add setup/ folder to .gitignore
- Improve mobile UX: 16px inputs (no iOS zoom), 44px touch targets
- Add active states for touch feedback on buttons

back_end/src/controllers/public.ts

@@ -65,17 +65,29 @@ export async function getNextJackpot(req: Request, res: Response) {
 
     const lottery = lotteryResult.rows[0];
 
-    // Get next cycle
-    const cycleResult = await db.query<JackpotCycle>(
+    // Get next cycle - first try to find one that hasn't drawn yet
+    let cycleResult = await db.query<JackpotCycle>(
       `SELECT * FROM jackpot_cycles 
        WHERE lottery_id = $1 
-       AND status IN ('scheduled', 'sales_open')
-       AND scheduled_at > NOW()
+       AND status IN ('scheduled', 'sales_open', 'drawing')
        ORDER BY scheduled_at ASC 
        LIMIT 1`,
       [lottery.id]
     );
 
+    // If no active cycles, get the next upcoming one
+    if (cycleResult.rows.length === 0) {
+      cycleResult = await db.query<JackpotCycle>(
+        `SELECT * FROM jackpot_cycles 
+         WHERE lottery_id = $1 
+         AND status = 'scheduled'
+         AND scheduled_at > NOW()
+         ORDER BY scheduled_at ASC 
+         LIMIT 1`,
+        [lottery.id]
+      );
+    }
+
     if (cycleResult.rows.length === 0) {
       return res.status(503).json({
         version: '1.0',