Add Dockerfile for docker SDK with HF-recommended pattern

Dockerfile

@@ -0,0 +1,33 @@
+# HF-recommended base for Gradio Spaces
+FROM python:3.10-slim
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+# Create user with UID 1000 (HF requirement)
+RUN useradd -m -u 1000 user
+USER user
+ENV HOME=/home/user \
+    PATH=/home/user/.local/bin:$PATH
+
+WORKDIR $HOME/app
+
+# Copy requirements and install (single pip install)
+COPY --chown=user requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt \
+    gradio[oauth]==5.0.0 \
+    "uvicorn>=0.14.0" \
+    "websockets>=10.4" \
+    spaces
+
+# Copy app
+COPY --chown=user app.py .
+
+# HF expects the app to be at $HOME/app/app.py
+ENV GRADIO_SERVER_NAME=0.0.0.0 \
+    GRADIO_SERVER_PORT=7860 \
+    PYTHONUNBUFFERED=1
+
+CMD ["python", "app.py"]

README.md

@@ -3,8 +3,8 @@ title: Comic Scene Generator
 emoji: 🎨
 colorFrom: purple
 colorTo: pink
-sdk: gradio
-sdk_version: 5.0.0
+sdk: docker
+sdk_version: "5.0.0"
 app_file: app.py
 pinned: false
 license: apache-2.0