Procedural Drum Synthesis Overhaul (TR-808/909)

[Pitrat-wav]

This submission implements high-fidelity procedural drum synthesis for the TR-808 and TR-909 models based on the provided DSP research.

Key technical highlights:

• 808 Kick Physics: Modeled the non-linear diode damping behavior using a dual-stage amplitude envelope (20ms initial decay to 50% volume) and a dual-stage frequency sweep (5ms 'tonk' followed by a 50ms body sweep).
• Digital Texture: Implemented an authentic 15-bit Linear Feedback Shift Register (LFSR) noise generator in DrumUtils.ts to replace standard white noise for the TR-909 snare snappy component.
• Engine Parity: Introduced syncInternalParams in the DrumMachine to ensure the audio engine accurately reflects the initial UI state (kit, saturation, and drum parameters) upon initialization.
• Techno UX: Optimized default Euclidean patterns (e.g., Snare 16/4 rotate 4) and added a one-click "Techno Randomizer" with Haptic Feedback for an immediate professional sound.
• Build Quality: Refactored the Telegram WebApp API integration to use centralized types and a robust utility wrapper, ensuring stable production builds while maintaining cross-platform compatibility.

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PR created automatically by Jules for task 17257013080075084173 started by @Pitrat-wav

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