feat(player): raise the playback speed ceiling off YouTube's limit

A single speed ladder fed both players, so the 2x cap that YouTube's
iframe API enforces also applied to Bunny and R2, which are plain <video>
elements the browser will play far faster. Pick the ladder per provider:
YouTube keeps 0.25x-2x, the native ones go up to 16x, where Chrome and
Firefox clamp playbackRate. The picker labels everything past 4x as
"no audio", since that is where the browsers stop pitch-correcting and
drop the audio track.

components/video-page/bunny-preview-player.tsx

@@ -21,6 +21,10 @@ import {
 } from '@/components/ui/dropdown-menu';
 import { resolvePublicBunnyCdnHostname } from '@/lib/bunny-cdn';
 import { cn } from '@/lib/utils';
+import {
+  NATIVE_SPEED_OPTIONS,
+  SILENT_ABOVE_SPEED,
+} from '@/components/video-page/hooks/video-player-utils';
 import type { BunnyPlaybackState, BunnyQualityOption } from '@/components/video-page/types';
 
 interface BunnyPreviewPlayerProps {
@@ -35,8 +39,6 @@ export interface BunnyPreviewPlayerHandle {
   toggleMute: () => void;
 }
 
-const SPEED_OPTIONS = [0.25, 0.5, 0.75, 1, 1.25, 1.5, 1.75, 2];
-
 function formatTime(value: number): string {
   if (!Number.isFinite(value) || value < 0) return '0:00';
   const total = Math.floor(value);
@@ -635,9 +637,14 @@ export const BunnyPreviewPlayer = forwardRef<BunnyPreviewPlayerHandle, BunnyPrev
                   </Button>
                 </DropdownMenuTrigger>
                 <DropdownMenuContent align="end">
-                  {SPEED_OPTIONS.map((speed) => (
+                  {NATIVE_SPEED_OPTIONS.map((speed) => (
                     <DropdownMenuItem key={speed} onClick={() => handleSpeedChange(speed)}>
                       {speed}x {speed === playbackSpeed ? '(Current)' : ''}
+                      {speed > SILENT_ABOVE_SPEED && (
+                        <span className="ml-auto pl-2 text-[10px] text-muted-foreground">
+                          no audio
+                        </span>
+                      )}
                     </DropdownMenuItem>
                   ))}
                 </DropdownMenuContent>