Client build scripts fixes and server stub with local devzone.

server/Dockerfile

@@ -0,0 +1,18 @@
+FROM code.pztrn.name/containers/go-toolbox:v8 AS build
+
+WORKDIR /bunkerd
+COPY . /bunkerd
+RUN --mount=type=cache,target="/home/container/go" task server:cmd:bunkerd:build --force
+
+FROM debian:13-slim
+
+RUN apt-get update && \
+    apt-get install -y ca-certificates iputils-ping coreutils && \
+    rm -rf /var/lib/apt/* /var/cache/apt/*
+
+COPY --from=build /bunkerd/_build/bunkerd /bunkerd
+COPY --from=build /usr/local/bin/dlv /dlv
+
+COPY server/entrypoint.sh /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]