Add Dockerfile for Node.js environment setup

.github/Dockerfile

@@ -0,0 +1,41 @@
+# Use the latest official Node.js image
+FROM node:latest
+
+# Install useful system utilities
+ENV TZ=America/New_York
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update \
+	&& apt-get install --yes \
+        apt-transport-https \
+        build-essential \
+        ca-certificates \
+	    curl \
+        debian-keyring \
+        debian-archive-keyring \
+	    git \
+        gnupg \
+        locales \
+        postgresql-client \
+        software-properties-common \
+        sudo \
+        tzdata \
+        wget \
+        zsh \
+    && rm -rf /var/lib/apt/lists/*
+
+# Create and set the working directory
+RUN mkdir /workspace
+WORKDIR /workspace
+
+# Copy the entire project into the environment
+COPY . .
+
+# Expose ports
+EXPOSE 3000
+
+# Configure zsh shell and theme
+USER $USERNAME
+ENV HOME /home/$USERNAME
+RUN curl https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh | bash - \
+    && sed -i 's/robbyrussell/kennethreitz/g' ~/.zshrc \
+    && echo 'export PATH=$PATH:$HOME/.local/bin' >>~/.zshrc