Drum Synthesis Enhancements & Techno Logic Implementation

[Pitrat-wav]

This PR implements deep DSP-level enhancements to the drum synthesis engine based on the "Software Synthesis of Analog Percussion Instruments" research.

Key changes:

1. TR-909 Snare Authenticity: Replaced standard white noise with a custom 15-bit Linear Feedback Shift Register (LFSR) noise generator, providing the characteristic digital 'crunch' of the original hardware.
2. TR-808 Kick Dynamics: Implemented a two-stage frequency sweep and a complex amplitude envelope that emulates the non-linear diode damping behavior of the 808's Bridged-T network.
3. Engine-UI Synchronization: Added a centralized syncInternalParams method to the DrumMachine and integrated it into the audioStore initialization to ensure all knobs and settings are perfectly synced on load.
4. Techno Optimization: Updated default Euclidean patterns to industry-standard techno configurations and added a dedicated "Techno Randomizer" (Dice icon) in the UI that applies optimized rhythmic patterns with haptic feedback.
5. Stability: Improved node disposal logic and added safety guards for exponential ramps to prevent audio glitches.

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PR created automatically by Jules for task 4963312022945006020 started by @Pitrat-wav

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