Advanced AI Prompt for Three.js Bokeh Depth-of-Field Particles

Act as a Cinematic Creative Coder. Design a highly atmospheric Three.js scene featuring a densely packed, drifting particle field utilizing the custom [PARTICLE_TEXTURE] sprite. The core requirement is the implementation of a realistic Bokeh/Depth-of-Field (DoF) post-processing pipeline utilizing the `EffectComposer` and `BokehPass`. Calibrate the initial [FOCUS_DEPTH] and set the maximum [BLUR_STRENGTH] to create a 'macro photography' aesthetic. Configure the perspective camera with an extreme [FIELD_OF_VIEW] that artificially compresses the 3D depth of the particles. Include the exact event listener logic required to smoothly raycast and dynamically update the shader's focus point based on the user's mouse X/Y coordinates or a scroll-based intersection observer.