chore: add root Dockerfile and app_port metadata for HF Space detection

Dockerfile

@@ -0,0 +1,32 @@
+FROM python:3.10-slim
+
+# Set environment variables
+ENV PYTHONDONTWRITEBYTECODE 1
+ENV PYTHONUNBUFFERED 1
+ENV PORT 7860
+
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements from backend and install
+COPY backend/requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the entire project
+COPY . .
+
+# Create data directory
+RUN mkdir -p /app/data
+
+# Final working directory for the app
+WORKDIR /app/backend
+
+# Expose port
+EXPOSE 7860
+
+# Run the backend app
+CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--timeout", "120", "--workers", "1", "app:app"]

README.md

@@ -4,6 +4,7 @@ emoji: 🧠
 colorFrom: indigo
 colorTo: blue
 sdk: docker
+app_port: 7860
 pinned: false
 ---