Christian Semmler b566ddaea8 Decouple SI extraction from Animation::Loader into reusable SIReader ... Extract generic SI file reading and audio extraction from Multiplayer::Animation::Loader into a new Multiplayer::SIReader class. This eliminates the coupling where NetworkManager reached into the Animation namespace to extract horn WAV data, and removes the wasteful intermediate horn cache (LegoCacheSound::Create copies PCM data, so the cache served no purpose after template creation). - New Multiplayer::SIReader owns SI file handle, header-only reading, lazy object loading, and audio track extraction - New Multiplayer::AudioTrack struct (moved from SceneAnimData::AudioTrack) - Animation::Loader delegates SI access via SetSIReader() pointer - NetworkManager owns SIReader, passes it to Loader, uses it directly for horn sound extraction via ExtractFirstAudio() - Consolidate duplicate horn vehicle arrays into single g_hornVehicles[] - Move HornMsg next to EmoteMsg in protocol (both one-shot broadcasts) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>		2026-03-28 14:19:24 -07:00
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extensions	Decouple SI extraction from Animation::Loader into reusable SIReader	2026-03-28 14:19:24 -07:00