Pixijs Application

Wraps the PixiJS v8 Application class, which is the standard entry point that bundles a renderer, stage container, canvas, and ticker into one object. The big change in v8 is that you construct an empty app and pass all config to the async init() call instead of the constructor. Covers the full option set (resizeTo, renderer preference, autoStart, resolution/autoDensity for HiDPI, WebGL/WebGPU overrides), the built-in plugins (resize, ticker, optional culler), and lifecycle methods including destroy with releaseGlobalResources, which you need when tearing down and recreating an app to avoid texture cache ghosts. Use this when you're setting up a PixiJS project from scratch or migrating v7 code to the new async init pattern.