chore(docker): add first (probably incomplete) version of backend/binary Dockerfile

docker/backend/Dockerfile

@@ -0,0 +1,11 @@
+# TODO: switch to uniworx registry debian image
+FROM debian:12.5
+
+ARG dev=-dev
+
+RUN apt-get -y update
+
+RUN apt-get -y install haskell-stack
+RUN apt-get -y install libghc-zlib-dev libpq-dev
+
+RUN make -- --backend-build${dev}