Real AI masters: rivals, AI seats and the co-op partner play by the player's rules (imps dig, mine and claim, rooms, towers, tunnels and the attack flag); other masters are saved; portals belong to whoever claims them

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/main.rs

@@ -1,6 +1,7 @@
 // DungeonCraft – dungeon building & defence in the browser (Rust + macroquad, WASM).
 
 mod achievements;
+mod ai;
 mod armory;
 mod audio;
 mod campaign;