Champion system

[DragonSlayer62]

• [ADD] Added full Champion Spawn system, featuring multi-stage monster waves, skull progression, altar-based boss summoning, and support for configurable spawn tables and rewards. Champion altars can be manually created, enabled, disabled, or removed via staff commands (champspawn, champenable, champdisable, champremove)
• [ADD] Added automated Champion Rotation system, allowing a configurable number of champion spawns to activate daily at a scheduled time (configurable via champ_rotation.js)
• [ADD] Added Race 33 for summons in race.dfn and then assigned this race to all summoned NPCs in dfndata/npc/magicsummon.dfn to fix an issue where summoned creatures would not attack certain types of NPCs