Dashboard Leads - version limpia para servidor (.env y config de despliegue restaurados)

backend/Dockerfile

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+FROM python:3.10-slim
+
+# Instalar dependencias del sistema y el Driver Oficial de Microsoft ODBC 18 para SQL Server en Linux
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    curl gnupg2 ca-certificates unixodbc unixodbc-dev gcc g++ \
+    && curl -fsSL https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor -o /usr/share/keyrings/microsoft-prod.gpg \
+    && curl -fsSL https://packages.microsoft.com/config/debian/12/prod.list > /etc/apt/sources.list.d/mssql-release.list \
+    && apt-get update \
+    && ACCEPT_EULA=Y apt-get install -y msodbcsql18 \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+EXPOSE 8001
+
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8001"]