fix: add missing Sparkles import and correct AutomationLane props

- Add Sparkles icon import to TrackExtensions
- Remove invalid props from AutomationLane (trackId, isPlaying, onSeek)
- Fix createAutomationPoint call to use object parameter with curve property

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

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

components/tracks/TrackExtensions.tsx

@@ -1,7 +1,7 @@
 'use client';
 
 import * as React from 'react';
-import { Plus, ChevronDown, ChevronRight } from 'lucide-react';
+import { Plus, ChevronDown, ChevronRight, Sparkles } from 'lucide-react';
 import type { Track as TrackType } from '@/types/track';
 import { Button } from '@/components/ui/Button';
 import { cn } from '@/lib/utils/cn';

components/tracks/TrackList.tsx

@@ -412,13 +412,11 @@ export function TrackList({
                           <div key={lane.id} className="h-32">
                             <AutomationLane
                               lane={lane}
-                              trackId={track.id}
                               zoom={zoom}
                               currentTime={currentTime}
                               duration={duration}
-                              isPlaying={isPlaying}
                               onAddPoint={(time, value) => {
-                                const newPoint = createAutomationPoint(time, value);
+                                const newPoint = createAutomationPoint({ time, value, curve: 'linear' });
                                 const updatedLanes = track.automation.lanes.map((l) =>
                                   l.id === lane.id
                                     ? { ...l, points: [...l.points, newPoint].sort((a, b) => a.time - b.time) }
@@ -461,7 +459,6 @@ export function TrackList({
                                   automation: { ...track.automation, lanes: updatedLanes },
                                 });
                               }}
-                              onSeek={onSeek}
                             />
                           </div>
                         ))}