- packet_parsers_tbc: explain spline waypoint cap (DoS prevention),
spline compression flags (Catmull-Rom 0x80000 / linear 0x2000 use
uncompressed format, others use packed delta), spell hit target cap
(128 >> real AOE max of ~20), guild roster cap (1000 safety limit)
- ambient_sound_manager: explain 1.5s bell toll spacing — matches
retail WoW cadence, allows each toll to ring out before the next
- character_preview.hpp: explain 4:5 portrait aspect ratio for
full-body character display in creation/selection screen