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';