- SimulatorProtocol parses DRGB, DRGBW, DNRGB, ANIM_CMD packets
- PacketLog dataclass stores led_count, start_index, decoded cmd
- run_simulator() async factory for test and standalone use
- Runnable as __main__ standalone server on WLED_PORT
- All 7 e2e tests pass
- UDPSender: single shared asyncio DatagramTransport, start/stop lifecycle, fire-and-forget send()
- _NullProtocol: swallows OS send errors (UDP delivery is best-effort for LEDs)
- SK6812Device.encode_animation_cmd: replaces b'' stub with real 16-byte 0xAC packet
- WS2801Device.encode_animation_cmd: replaces b'' stub with real 16-byte 0xAC packet
- Both devices delegate to encode_animation_cmd from lightsync.protocol.animation_cmd
- encode_drgb/encode_drgbw: 2-byte header + RGB/RGBW body, truncate at MTU max
- encode_dnrgb_packets: splits large frames into 489-LED chunks with big-endian start index
- encode_animation_cmd: 16-byte 0xAC packet with speed (float32), color, flags, density
- decode_animation_cmd: full inverse round-trip for all 7 animation types
- All 27 tests pass
