refactor: docs and licenses

.devcontainer/Dockerfile

@@ -0,0 +1,9 @@
+FROM mcr.microsoft.com/vscode/devcontainers/base:ubuntu
+
+# Install Ruby and dependencies
+RUN apt-get update && \
+    apt-get install -y ruby-full build-essential zlib1g-dev nodejs && \
+    gem install bundler jekyll
+
+# Clean up
+RUN apt-get clean && rm -rf /var/lib/apt/lists/*