Fix repo structure: add-on in x3_dashboard/ subfolder

x3_dashboard/Dockerfile

@@ -0,0 +1,21 @@
+FROM python:3.12-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        fonts-dejavu-core \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY requirements.txt /app/requirements.txt
+RUN pip install --no-cache-dir -r /app/requirements.txt
+
+COPY run.sh /app/run.sh
+COPY server.py /app/server.py
+
+RUN chmod +x /app/run.sh
+
+CMD ["/app/run.sh"]