Initial implementation of AudioCraft Studio

Complete web interface for Meta's AudioCraft AI audio generation:

- Gradio UI with tabs for all 5 model families (MusicGen, AudioGen,
  MAGNeT, MusicGen Style, JASCO)
- REST API with FastAPI, OpenAPI docs, and API key auth
- VRAM management with ComfyUI coexistence support
- SQLite database for project/generation history
- Batch processing queue for async generation
- Docker deployment optimized for RunPod with RTX 4090

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Dockerfile

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+# AudioCraft Studio Dockerfile for RunPod
+# Optimized for NVIDIA RTX 4090 (24GB VRAM)
+
+FROM nvidia/cuda:12.1-cudnn8-runtime-ubuntu22.04
+
+# Set environment variables
+ENV DEBIAN_FRONTEND=noninteractive
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PIP_NO_CACHE_DIR=1
+ENV PIP_DISABLE_PIP_VERSION_CHECK=1
+
+# CUDA settings
+ENV CUDA_HOME=/usr/local/cuda
+ENV PATH="${CUDA_HOME}/bin:${PATH}"
+ENV LD_LIBRARY_PATH="${CUDA_HOME}/lib64:${LD_LIBRARY_PATH}"
+
+# AudioCraft settings
+ENV AUDIOCRAFT_OUTPUT_DIR=/workspace/outputs
+ENV AUDIOCRAFT_DATA_DIR=/workspace/data
+ENV AUDIOCRAFT_MODEL_CACHE=/workspace/models
+ENV AUDIOCRAFT_HOST=0.0.0.0
+ENV AUDIOCRAFT_GRADIO_PORT=7860
+ENV AUDIOCRAFT_API_PORT=8000
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    git \
+    curl \
+    wget \
+    ffmpeg \
+    libsndfile1 \
+    libsox-dev \
+    sox \
+    build-essential \
+    python3.10 \
+    python3.10-venv \
+    python3.10-dev \
+    python3-pip \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set Python 3.10 as default
+RUN update-alternatives --install /usr/bin/python python /usr/bin/python3.10 1 \
+    && update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.10 1
+
+# Upgrade pip
+RUN pip install --upgrade pip setuptools wheel
+
+# Create workspace directory
+WORKDIR /workspace
+
+# Create necessary directories
+RUN mkdir -p /workspace/outputs /workspace/data /workspace/models /workspace/app
+
+# Copy requirements first for caching
+COPY requirements.txt /workspace/app/
+WORKDIR /workspace/app
+
+# Install PyTorch with CUDA support
+RUN pip install torch==2.1.0 torchaudio==2.1.0 --index-url https://download.pytorch.org/whl/cu121
+
+# Install other requirements
+RUN pip install -r requirements.txt
+
+# Install AudioCraft from source for latest features
+RUN pip install git+https://github.com/facebookresearch/audiocraft.git
+
+# Copy application code
+COPY . /workspace/app/
+
+# Create non-root user for security (optional, RunPod often uses root)
+# RUN useradd -m -u 1000 audiocraft && chown -R audiocraft:audiocraft /workspace
+# USER audiocraft
+
+# Expose ports
+EXPOSE 7860 8000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
+    CMD curl -f http://localhost:7860/ || exit 1
+
+# Default command
+CMD ["python", "main.py"]