Docker File Update

Dockerfile

@@ -0,0 +1,52 @@
+# Stage 1: Build Frontend (SvelteKit)
+FROM node:20-slim AS frontend-builder
+WORKDIR /app
+COPY package.json package-lock.json ./
+# Install dependencies
+RUN npm ci
+# Copy source
+COPY . .
+# Build static files (outputs to build/)
+RUN npm run build
+
+# Stage 2: Backend (Python Flask + GPU Support)
+# Use official PyTorch image with CUDA 12.1 support
+FROM pytorch/pytorch:2.2.0-cuda12.1-cudnn8-runtime
+
+# Install system dependencies for audio (libsndfile) and ffmpeg
+# reliable ffmpeg install on debian-based images
+RUN apt-get update && apt-get install -y \
+    libsndfile1 \
+    ffmpeg \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Copy python requirements
+# We remove torch/torchaudio from requirements briefly during install to avoid re-installing CPU versions
+# or we trust pip to see the installed version satisfies it.
+COPY server/requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy backend code
+COPY server/ .
+
+# Copy built frontend from Stage 1 into the expected relative path
+# app.py expects '../build', so we copy to /build and structure appropriately
+# However, simpler is to copy build/ to /app/build and adjust app.py or folder structure.
+# Let's mirror the structure: /app/server (WORKDIR) and /app/build
+COPY --from=frontend-builder /app/build /app/build
+
+# Set working directory to server where app.py resides
+WORKDIR /app/server
+
+# Environment variables
+ENV PYTHONUNBUFFERED=1
+ENV PORT=5000
+
+# Expose port
+EXPOSE ${PORT}
+
+# Run the application
+CMD ["python", "app.py"]