Procedural Drum Synthesis via DSP Research

[Pitrat-wav]

This PR implements a fully procedural drum machine based on the provided DSP research document. All drum sounds (808/909 Kick, Snare, Hi-Hat, Clap) are synthesized in real-time using Tone.js oscillators and noise buffers, avoiding the use of PCM samples.

Key features:

• Accurate Analog Modeling: Replicates the physical behavior of Roland TR-808/909 circuits, including bridged-T networks and Schmitt trigger oscillator matrices.
• Analog Drift: Implements micro-randomization (±2% variance) on pitch, filters, and envelopes to achieve an organic, non-linear sound.
• Master Glue: Routes all drum outputs through a master compressor and Waveshaper (soft-clipping) for cohesive saturation.
• Resource Efficiency: Implements a 'create-and-dispose' architecture to ensure no memory leaks during playback.
• Independent Hi-Hat Routing: Supports separate gain stages for open and closed hi-hats.

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PR created automatically by Jules for task 7826795445219998527 started by @Pitrat-wav

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