I’d like a small, self-contained browser demo of a rocket launch. Please scaffold a folder named "rocket-launch" with index.html, style.css, and main.js, and include Three.js 0.160.x plus the needed addons (OrbitControls and the post-processing pipeline: EffectComposer, RenderPass, BokehPass/BokehShader) as local ES modules—no CDNs in the final HTML. In main.js, build a simple procedural rocket and launch pad, add a shader-driven particle system for exhaust/smoke, and simulate a physics-based ascent (thrust vs. gravity/drag) after liftoff. The camera should smoothly track the rocket, and a depth-of-field (Bokeh) effect should keep the rocket in focus as it climbs. Show an on-screen altitude readout. Deliver code that runs offline when the libraries are placed locally and is clean enough to verify by static inspection (correct imports, paths, and module usage).