updated 3 tier structure

.devcontainer/Dockerfile

@@ -1,8 +1,8 @@
-FROM alpine:3.23.0
+FROM ubuntu:latest
 
-RUN apk update && apk add git npm python3 bash podman
+RUN apt update -y && apt install -y git npm python3 bash podman podman-compose fuse-overlayfs
 
 # Install Angular.js via NPM
 RUN npm install -g @angular/cli@21.2.14
 
-ENV SHELL /bin/bash
+# ENV SHELL /bin/bash