Unlock page features, improve speed, and enhance presets for stem separation

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🔗 View agent run: https://app.netlify.com/projects/masteringaudio/agent-runs/6a70730c408f6f08700fd317

🤖 Agent: Gemini

💬 Prompt: unlock the page features make fully free and hands stem separation Make it faster and make more and better pressets

✅ Result: Unlocked all application features to make MasteringPro Local 100% free and unrestricted for all users, accelerated AI stem separation performance, and expanded the preset library with high-quality mastering presets.

Feature Unlocking & Free Access

• Removed export access codes, payment validation checks, and payment modals across the application.
• Unlocked 16-bit PCM and 32-bit float WAV exports and 4-stem AI separation for all tracks without limits, signups, or paywalls.
• Updated UI copy and document metadata in Croatian and English to reflect that the app is completely free, open, and local.

Accelerated AI Stem Separation & Hands-Free Workflow

• Optimized ONNX Runtime execution in the stem separation worker by enabling WASM SIMD, multithreading, CPU memory arena allocation, memory pattern reuse, and high-performance WebGPU fallbacks.
• Improved sample resampling efficiency and utilized transferable ArrayBuffers for zero-copy memory transfers between workers and the main thread.
• Added an automatic hands-free stem separation toggle option that triggers stem separation seamlessly upon audio file load.

Expanded Mastering Presets

• Expanded the mastering preset library with 10 professional presets tailored for both streaming platform standards (Spotify/YouTube, Apple Music, Club/EDM, CD Master) and genre-specific targets (Trap/Hip-Hop, Rock/Metal, Modern Pop, Techno/House, Acoustic/Jazz, Lofi Warmth).
• Redesigned the preset selection interface in the master control rack for quick, one-click preset switching.

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