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/Settings/Views/SettingsView.swift

@@ -519,6 +519,13 @@ struct SettingsView: View {
                 Label("Override Pro Status", systemImage: "star.fill")
             }
 
+            Toggle(isOn: Binding(
+                get: { UserDefaults.standard.bool(forKey: "marketingVideoMode") },
+                set: { UserDefaults.standard.set($0, forKey: "marketingVideoMode") }
+            )) {
+                Label("Marketing Video Mode", systemImage: "video.fill")
+            }
+
             Button {
                 showOnboardingPaywall = true
             } label: {