Add World method to remove components.

[waynemwashuma]

Objective

Introduces core proper remove() method for entities on the World.

• Implements Add a method to remove component(s) from an entity #46

Solution

The changes include enhanced World by adding remove() method that allows removing specific components from entities while maintaining proper ECS architecture with archetype transitions and hook calls.

Showcase

This example shows how to use the new method:

class Position { x = 0; y = 0; }
class Velocity { dx = 1; dy = 1; }
class Renderable { /* ... */ }

const world = new World()
  .registerType(Position)
  .registerType(Velocity)
  .registerType(Renderable);

const entity = world.spawn([new Position(), new Velocity(), new Renderable()]);

// Later, remove the Velocity component
world.remove(entity, [Velocity]);

// Entity now only has Position and Renderable components

Migration Guide

No breaking changes to existing APIs.

Checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.