feat: add marketing video mode and Remotion marketing video project

Add debug-only Marketing Video Mode toggle that enables hands-free
screen recording across the app: auto-scrolling Featured Trips carousel,
auto-filling trip wizard, smooth trip detail scrolling via CADisplayLink,
and trip options auto-sort with scroll.

Add Remotion marketing video project with 6 scene compositions using
image sequences extracted from screen recordings, varied phone entrance
animations, and deduped frames for smooth playback.

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

SportsTime/Features/Trip/Views/ItineraryTableViewController.swift

@@ -511,6 +511,45 @@ final class ItineraryTableViewController: UITableViewController {
         ItineraryReorderingLogic.travelRow(in: flatItems, forDay: day)
     }
     
+    // MARK: - Marketing Video Auto-Scroll
+
+    #if DEBUG
+    private var displayLink: CADisplayLink?
+    private var scrollStartTime: CFTimeInterval = 0
+    private var scrollDuration: CFTimeInterval = 6.0
+    private var scrollStartOffset: CGFloat = 0
+    private var scrollEndOffset: CGFloat = 0
+
+    func scrollToBottomAnimated(delay: TimeInterval = 1.5, duration: TimeInterval = 6.0) {
+        guard UserDefaults.standard.bool(forKey: "marketingVideoMode") else { return }
+        self.scrollDuration = duration
+        DispatchQueue.main.asyncAfter(deadline: .now() + delay) { [weak self] in
+            guard let self else { return }
+            let maxOffset = self.tableView.contentSize.height - self.tableView.bounds.height + self.tableView.contentInset.bottom
+            guard maxOffset > 0 else { return }
+            self.scrollStartOffset = self.tableView.contentOffset.y
+            self.scrollEndOffset = maxOffset
+            self.scrollStartTime = CACurrentMediaTime()
+            let link = CADisplayLink(target: self, selector: #selector(self.marketingScrollTick))
+            link.add(to: .main, forMode: .common)
+            self.displayLink = link
+        }
+    }
+
+    @objc private func marketingScrollTick() {
+        let elapsed = CACurrentMediaTime() - scrollStartTime
+        let t = min(elapsed / scrollDuration, 1.0)
+        // Ease-in-out curve
+        let eased = t < 0.5 ? 2 * t * t : -1 + (4 - 2 * t) * t
+        let newOffset = scrollStartOffset + (scrollEndOffset - scrollStartOffset) * eased
+        tableView.contentOffset = CGPoint(x: 0, y: newOffset)
+        if t >= 1.0 {
+            displayLink?.invalidate()
+            displayLink = nil
+        }
+    }
+    #endif
+
     // MARK: - Drag State Management
     //
     // These methods handle the start, update, and end of drag operations,