docs: enforce SSH-only policy and add full dashboard handoff context

Dockerfile

@@ -0,0 +1,8 @@
+FROM python:3.12-slim
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY main.py .
+COPY static/ /app/static/
+EXPOSE 8080
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8080"]