S19: establish engineering repository

templates/backend/Dockerfile

@@ -0,0 +1,13 @@
+FROM maven:3.9-eclipse-temurin-25 AS build
+WORKDIR /workspace
+COPY . .
+RUN mvn -B -ntp -Dformat.mode=check clean verify
+FROM eclipse-temurin:25-jre AS runtime
+WORKDIR /app
+USER 10001:10001
+EXPOSE 8080
+ENTRYPOINT ["java", "-jar", "/app/quarkus-run.jar"]
+FROM runtime AS prebuilt
+COPY --chown=10001:10001 backend/target/quarkus-app/ ./
+FROM runtime AS standalone
+COPY --from=build --chown=10001:10001 /workspace/backend/target/quarkus-app/ ./