spd789562/pixi-v8-particle-emitter ? reverse-engineered prompt

Build me a PixiJS v8 particle emitter package and demo editor.

I want a TypeScript project that lets me create and control particle effects like smoke, fire, sparks, rain, bubbles, and explosions, using the same kind of config format as the old Pixi particle emitter. It should work with PixiJS v8, use ParticleContainer, and handle the usual particle settings like lifetime, speed, scale, color, alpha, rotation, spawn shape, and textures.

Please also include a simple web based particle editor so I can tweak settings and preview the result in the browser, plus a few example scenes that show common effects working out of the box. If there are any Pixi v8 specific limits around multiple textures or texture sources, make sure the code handles that clearly and document the gotchas. Look up current Pixi docs online if you need to.