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/TripOptionsView.swift

@@ -231,8 +231,9 @@ struct TripOptionsView: View {
     }
 
     var body: some View {
+        ScrollViewReader { proxy in
         ScrollView {
-            LazyVStack(spacing: 16) {
+            VStack(spacing: 16) {
                 // Hero header
                 VStack(spacing: 8) {
                     Image(systemName: "point.topright.arrow.triangle.backward.to.point.bottomleft.scurvepath.fill")
@@ -291,8 +292,27 @@ struct TripOptionsView: View {
                 }
             }
             .padding(.bottom, Theme.Spacing.xxl)
+            Color.clear.frame(height: 1).id("tripOptionsBottom")
         }
         .themedBackground()
+        #if DEBUG
+        .onAppear {
+            if UserDefaults.standard.bool(forKey: "marketingVideoMode") && !hasAppliedDemoSelection {
+                hasAppliedDemoSelection = true
+                DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
+                    Theme.Animation.withMotion(.easeInOut(duration: 0.3)) {
+                        sortOption = .mostGames
+                    }
+                }
+                DispatchQueue.main.asyncAfter(deadline: .now() + 2.5) {
+                    withAnimation(.easeInOut(duration: 20.0)) {
+                        proxy.scrollTo("tripOptionsBottom", anchor: .bottom)
+                    }
+                }
+            }
+        }
+        #endif
+        } // ScrollViewReader
         .navigationDestination(isPresented: $showTripDetail) {
             if let trip = selectedTrip {
                 TripDetailView(trip: trip)