docs: focus wiki on player usage and support
Remove all em dashes, fix duplicated text
Tighten prose across all pages
docs: add FAQ explaining "Involved Harmony IDs" crash blame
Update to v1.5.11: RealSmoke/Firearms compat
Update wiki for v1.5.5: entity interpolation, repulse agents, frame profiler guard
Add Mod Compatibility page, update Home for v1.5.0