minor changes to build env after 3 tier

.devcontainer/Dockerfile

@@ -1,6 +1,6 @@
 FROM alpine:3.23.0
 
-RUN apk update && apk add git npm python3 bash
+RUN apk update && apk add git npm python3 bash podman
 
 # Install Angular.js via NPM
 RUN npm install -g @angular/cli@21.2.14

.devcontainer/devcontainer.json

@@ -11,8 +11,4 @@
       ]
     }
   }
-}
-
-// Warning: Missing GLIBCXX >= 3.4.25! from 
-// Warning: Can't find libc.so or ldconfig, can't verify libc version
-// Warning: Missing GLIBC >= 2.28! from 
+}