AUTO-001: add automation approval workflow

Closes #21

Dockerfile

@@ -4,6 +4,7 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
     PIP_NO_CACHE_DIR=1 \
     SILLYHOME_MODEL_STORE=/app/data/models
+ENV SILLYHOME_AUTOMATION_STORE=/app/data/automations
 
 WORKDIR /app
 
@@ -14,7 +15,7 @@ COPY app ./app
 COPY backend ./backend
 RUN python -m pip install --upgrade pip && \
     python -m pip install . && \
-    mkdir -p /app/data/models && \
+    mkdir -p /app/data/models /app/data/automations && \
     chown -R sillyhome:sillyhome /app/data
 
 EXPOSE 8000