A focused release that streamlines the component API by removing lifecycle hooks in favor of a more flexible query subscription system.

Breaking Changes

• Removed component lifecycle hooks: The onAttach and onDetach callbacks have been removed from the component API. Components are now pure data containers without built-in lifecycle management.

• Migration required: Applications using onAttach/onDetach must migrate to query subscriptions:

  // Before
  const Component = createComponent(schema, onAttach, onDetach);
  
  // After
  const Component = createComponent(schema);
  const query = world.queryManager.registerQuery({ required: [Component] });
  query.subscribe('qualify', onAttach);
  query.subscribe('disqualify', onDetach);

Added

• Query subscription for lifecycle tracking: Use query.subscribe('qualify'/'disqualify') to track when components are added or removed from entities
• Multiple lifecycle listeners: The new system supports multiple subscribers for the same component events
• Conditional lifecycle tracking: Create queries that track combinations of components, not just individual ones

Fixed

• Fixed missing disqualify callbacks when removing the last component from an entity

Changed

• Simplified component API - components are now pure data structures
• Improved separation of concerns - lifecycle logic is decoupled from component definitions
• Enhanced flexibility - subscriptions can be dynamically added or removed at runtime

Documentation

• Updated component documentation to reflect the removal of lifecycle hooks
• Added comprehensive examples of using query subscriptions for lifecycle tracking
• Enhanced query documentation with component lifecycle tracking patterns