Add Komodo enemy class and enhance enemy spawning logic

- Introduce Komodo class with high health and attack mechanics.
- Modify Enemy class to accept type parameter during initialization.
- Update EnemyAI to set speed based on enemy type.
- Implement random spawning of enemies in boss rooms.
- Adjust health bar calculations to use max health.

game/enemy/komodo.rb

@@ -0,0 +1,17 @@
+require_relative 'base'
+
+class Komodo < Enemy
+  load 'assets/images/komodo.png', 31, 48, 1.7
+
+  def initialize(x, y)
+    super(x, y, :komodo, 1000)
+
+    $bus.on(:attack) do |attack_x, attack_y, range, damage|
+      if Math.hypot(@x - attack_x, @y - attack_y) <= range
+        take_damage(damage)
+        next true
+      end
+      false
+    end
+  end
+end