[YM!] Veil Iris Lights Compat (VILC)

Added

• Configurable point-light budget from 1 to 96 lights
• Configurable area-light budget from 1 to 32 lights
• Independent toggles for detailed surface normals and voxel shadows
• Custom quality state for settings that differ from a preset
• BetterF3 compatibility for VILC diagnostics

Changed

• Quality presets now apply complete defaults instead of locking individual settings
• Performance defaults to 24 point lights and 8 area lights
• Balanced defaults to 48 point lights and 16 area lights
• High defaults to 96 point lights and 32 area lights
• Reworked the configuration screen into separate performance and appearance controls
• F3 diagnostics now show the active configured light budgets