Fix addon build context

addon/Dockerfile

@@ -2,13 +2,12 @@ FROM python:3.13-slim
 
 WORKDIR /app
 
-COPY pyproject.toml README.md ./
-COPY app ./app
-RUN python -m pip install --no-cache-dir .
+ARG SILLYHOME_FUTURE_REF=main
+RUN python -m pip install --no-cache-dir \
+    "http://192.168.6.31:3000/Otto/sillyhome-future/archive/${SILLYHOME_FUTURE_REF}.tar.gz"
 
-COPY addon/run.sh /run.sh
+COPY run.sh /run.sh
 RUN chmod 0755 /run.sh \
     && useradd --create-home --uid 10001 sillyhome
 
 ENTRYPOINT ["/run.sh"]
-