feat: add poc

src/world/World.js

@@ -0,0 +1,27 @@
+/**
+ * World manager - handles areas and world state
+ */
+export class World {
+  constructor() {
+    this.areas = [];
+    this.currentArea = null;
+    this.areas.push({
+      id: 'cave',
+      name: 'Dark Cave',
+      type: 'cave',
+      spawnTypes: ['humanoid', 'beast', 'elemental'],
+      spawnRate: 0.5
+    });
+        
+    this.currentArea = this.areas[0];
+  }
+
+  getCurrentArea() {
+    return this.currentArea;
+  }
+
+  getSpawnTypes() {
+    return this.currentArea ? this.currentArea.spawnTypes : ['beast'];
+  }
+}
+