prepare first release with graceful shutdown + containerfile + push to

hub script

Containerfile

@@ -0,0 +1,12 @@
+FROM rust:1.96 as builder
+
+WORKDIR /app
+COPY . .
+RUN cargo build --release
+
+
+FROM debian:trixie-slim
+
+WORKDIR /app
+COPY --from=builder /app/target/release/herald .
+CMD [ "./herald" ]