Remove volume slider and description text from player

Cleaner UI - metadata already tells the story.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

index.html

@@ -1112,11 +1112,6 @@
 
                 <!-- generated only: artifact playback + sharing -->
                 <div id="generatedBlock" style="display:none;">
-                    <div class="engine-line" id="generatedTransform">
-                        Reimagined as classic game-console music<br />
-                        using the Wario Synthesis Engine.
-                    </div>
-
                     <div style="display:flex; justify-content:center; margin-top: 14px; margin-bottom: 14px;">
                         <button id="playPauseBtn" class="primary" type="button">Play</button>
                     </div>
@@ -1132,11 +1127,6 @@
                         </div>
                     </div>
 
-                    <div class="volume-control" id="generatedVolumeRow" style="margin-top: 14px; opacity: 0.75;">
-                        <label for="motifVolume" style="min-width: auto;">Volume</label>
-                        <input type="range" id="motifVolume" min="0" max="1" step="0.01" value="0.8" />
-                    </div>
-
                     <div style="margin-top: 14px;">
                         <button id="copyLinkBtn" type="button" disabled>Copy link</button>
                     </div>