- Add spellbook screen (P key) with Spell.dbc name lookup and action bar assignment
- Default Attack and Hearthstone spells available in single player
- Fix WMO floor clipping (gryphon roost) by tightening ceiling rejection threshold
- Darken ocean water, increase wave motion and opacity
- Add M2 model distance fade-in to prevent pop-in
- Reposition chat window, add slash/enter key focus
- Remove debug key commands (keep only F1 perf HUD, N minimap)
- Performance: return chat history by const ref, use deque for O(1) pop_front
- Create ATTRIBUTION.md crediting WoWDev Wiki, TrinityCore, MaNGOS,
and third-party libraries used
- Add WoWDev Wiki format specification links to file format parsers
(ADT, BLP, DBC loaders)
- Add protocol documentation reference to opcodes.hpp