Add application file

Dockerfile

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+# Read the doc: https://huggingface.co/docs/hub/spaces-sdks-docker
+# you will also find guides on how best to write your Dockerfile
+
+FROM python:3.11-slim AS builder
+
+# Instalar herramientas necesarias solo en el stage de build
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends build-essential gcc libffi-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Copiar requirements e instalar en un prefijo temporal (/install)
+COPY requirements.txt ./requirements.txt
+RUN python -m pip install --upgrade pip setuptools wheel \
+    && python -m pip install --no-cache-dir --prefix=/install -r requirements.txt
+
+# --- Final minimal image ---
+FROM python:3.11-slim
+
+# Crear user no-root recomendado por Spaces
+RUN useradd -m -u 1000 user
+
+ENV PATH="/home/user/.local/bin:$PATH"
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+# Copiar los paquetes instalados desde el builder al entorno de runtime
+COPY --from=builder /install /usr/local
+
+# Copiar código y asignar al user no-root
+COPY --chown=user:user . /app
+
+USER user
+
+EXPOSE 7860
+
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]

requirements.txt

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+fastapi>=0.95.0
+uvicorn[standard]>=0.22.0
+huggingface_hub>=0.18.0
+gradio>=4.8.0
+python-dotenv>=1.0.0
+requests>=2.28.0
+gunicorn>=20.1.0