Add initial .devcontainer setup for Node.js and Python development

.devcontainer/Dockerfile

@@ -0,0 +1,13 @@
+# Use an official Node.js runtime as a parent image
+FROM node:14
+
+# Set the working directory in the container
+WORKDIR /workspace
+
+# Install Python 3
+RUN apt-get update && \
+    apt-get install -y python3 python3-pip && \
+    rm -rf /var/lib/apt/lists/*
+
+# Optionally install global npm packages
+RUN npm install -g nodemon