build: replace scaffold Dockerfiles with native multi-stage image

- Add Dockerfile using Mandrel jdk-21 builder and quarkus-micro-image:2.0 runtime
- Run as non-root user 1001, expose 8080, set TZ=America/Santiago
- Bind http host to 0.0.0.0 for container networking
- Remove obsolete Quarkus-generated Dockerfiles (jvm, legacy-jar, native, native-micro)
- Tighten .dockerignore to ship only build inputs (mvnw, .mvn, pom.xml, src)
- Add api.http with /status and /q/health request samples

Dockerfile

@@ -0,0 +1,29 @@
+## Stage 1 : build with maven builder image with native capabilities
+FROM quay.io/quarkus/ubi-quarkus-mandrel-builder-image:jdk-21 AS build
+COPY --chown=quarkus:quarkus mvnw /code/mvnw
+COPY --chown=quarkus:quarkus .mvn /code/.mvn
+COPY --chown=quarkus:quarkus pom.xml /code/
+USER quarkus
+WORKDIR /code
+RUN ./mvnw -B org.apache.maven.plugins:maven-dependency-plugin:3.1.2:go-offline
+COPY src /code/src
+RUN ./mvnw package -Dnative
+
+## Stage 2 : create the docker final image
+FROM quay.io/quarkus/quarkus-micro-image:2.0
+WORKDIR /work/
+COPY --from=build /code/target/*-runner /work/application
+
+# set up permissions for user `1001`
+RUN chmod 775 /work /work/application \
+  && chown -R 1001 /work \
+  && chmod -R "g+rwX" /work \
+  && chown -R 1001:root /work
+
+EXPOSE 8080
+USER 1001
+
+#TimeZone
+ENV TZ="America/Santiago"
+
+CMD ["./application", "-Dquarkus.http.host=0.0.0.0"]