[Added] Basis for the project

frontend/.devcontainer/Dockerfile

@@ -0,0 +1,21 @@
+FROM node:22-bookworm-slim
+
+ARG WORKDIR
+WORKDIR ${WORKDIR}
+
+RUN apt-get update && \
+    apt-get install -y git && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# Install Angular CLI globally
+RUN npm install -g @angular/cli
+
+# Switching user so it doesn't use root
+# If root adds files, it takes ownership, making them unremovable on the host except by using sudo
+# node tranfers ownership to the host user
+USER node
+
+EXPOSE 4200
+
+CMD ["tail","-f","/dev/null"]