v0.4.0

What's New

• 15 per-LED animations — Aurora, K.I.T.T., Campfire, EKG, Ocean, Comet, Starfield, Morse, Police, Pride, 'Murica!, Festivus, Halloween, Binary, Fibonacci (Brick only)
• Persistent animations — Survive app exit and device reboot with automatic restart
• Settings backup/restore — Real LED colors preserved while animations run
• Simplified controls — Removed toggle button and save prompt; always saves on quit
• Blip-free handoff — Clean transitions between animations and static LED mode