v1.6.3

• Fix crash on Sable 2.0.2+: @shadow field sceneId was not located in RapierPhysicsPipeline (field removed in upstream)
• Remove fstemp3/fsban/fslook features (conflicted with core functionality)
• Rewrite UpdateChecker to query GitHub Releases API instead of private IP
• Add ANSI art startup banner via ConsoleAnsiArtist
• Restore auto-update to config-controlled behavior