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-# ─────────────────────────────────────────────────────────────────────────────
-# Dockerfile for HuggingFace Spaces (Docker SDK)
-#
-# Hardware target: CPU Space (free tier) or GPU Space (T4-small recommended).
-# Port 7860 is the HF Spaces standard.
-#
-# Build order:
-#   1. System deps (libsndfile for soundfile, git for pip installs)
-#   2. Python packages (cached layer)
-#   3. App code (invalidates only on source changes)
-#   4. Switch to non-root user (HF Spaces requirement)
-# ─────────────────────────────────────────────────────────────────────────────
-
-FROM python:3.11-slim
-
-WORKDIR /app
-
-# ── System dependencies ───────────────────────────────────────────────────── #
-RUN apt-get update && apt-get install -y --no-install-recommends \
-      libsndfile1 \
-      libgomp1 \
-      git \
-    && rm -rf /var/lib/apt/lists/*
-
-# ── Python dependencies (cached unless requirements.txt changes) ──────────── #
-COPY requirements.txt .
-
-# Install CPU-only torch first (saves ~1 GB over default CUDA wheel).
-# Comment these two lines out and use the plain pip install if you have a GPU Space.
-RUN pip install --no-cache-dir \
-      torch==2.5.1+cpu torchaudio==2.5.1+cpu \
-      --index-url https://download.pytorch.org/whl/cpu
-
-RUN pip install --no-cache-dir -r requirements.txt
-
-# ── Application code ─────────────────────────────────────────────────────── #
-COPY . .
-
-# ── Non-root user for HF Spaces compatibility ─────────────────────────────── #
-RUN useradd -m -u 1000 appuser \
-    && chown -R appuser:appuser /app
-USER 1000
-
-# ── Model cache lives in the user home so HF Spaces can persist it ────────── #
-ENV HF_HOME=/home/appuser/.cache/huggingface
-ENV TRANSFORMERS_CACHE=/home/appuser/.cache/huggingface/hub
-ENV PORT=7860
-
-EXPOSE 7860
-
-# ── Healthcheck ───────────────────────────────────────────────────────────── #
-HEALTHCHECK --interval=60s --timeout=10s --start-period=300s \
-  CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:7860/health')"
-
-CMD ["python", "-m", "uvicorn", "app:app", \
-     "--host", "0.0.0.0", \
-     "--port", "7860", \
-     "--log-level", "info", \
-     "--ws-ping-interval", "30", \
-     "--ws-ping-timeout", "60"]