Class DestructibleTiles

Tracks health for destructible tiles and manages visual stage transitions. Works with TilemapManager for tile replacement on damage/destruction.

Usage:

const destructible = new DestructibleTiles({ maxHealth: 100, destroyedTileIndex: 0 });
destructible.setStages([
  { threshold: 0.5, tileIndex: 42 }, // cracked
  { threshold: 0.25, tileIndex: 43 }, // heavily damaged
]);
destructible.registerTile(5, 3); // tile at grid (5,3) is destructible
const result = destructible.damage(5, 3, 40);
// result.newTileIndex = stage tile or destroyed tile
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