Add organized Docker container structure with disciplined naming

- Create layered container architecture: Base, Light, Full, Computational
- Implement non-root user management with UID/GID mapping
- Add Markwhen timeline tool to documentation stack
- Create wrapper scripts for environment variable handling
- Update documentation across all containers
- Establish naming convention using RCEO-AIOS-Public-Tools- prefix
- Add organizational rule to keep repository root clean
- Remove old unorganized container files

Docker/RCEO-AIOS-Public-Tools-DocMaker-Computational/Dockerfile

@@ -0,0 +1,42 @@
+FROM rceo-aios-public-tools-docmaker-full:latest
+
+# Avoid prompts from apt
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install computational tools
+RUN apt-get update && apt-get install -y \
+    r-base \
+    r-base-dev \
+    bc \
+    octave \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Python scientific packages
+RUN pip3 install pandas numpy matplotlib scipy jupyter
+
+# Install R packages (commonly used ones)
+RUN R -e "install.packages(c('knitr', 'rmarkdown', 'dplyr', 'ggplot2'), repos='https://cran.rstudio.com/')"
+
+# Install IRkernel for R in Jupyter
+RUN R -e "install.packages('IRkernel', repos='https://cran.rstudio.com/')"
+
+# Create Jupyter config directory and set up notebook directory
+RUN mkdir -p /workspace/notebooks
+
+# Create Jupyter startup script
+RUN echo '#!/bin/bash' > /jupyter_start.sh && \
+    echo '# Install R kernel for Jupyter if R is available' >> /jupyter_start.sh && \
+    echo 'if command -v R &> /dev/null; then' >> /jupyter_start.sh && \
+    echo '  R -e "IRkernel::installspec()" 2>/dev/null || true' >> /jupyter_start.sh && \
+    echo 'fi' >> /jupyter_start.sh && \
+    echo '# Run Jupyter as the proper user' >> /jupyter_start.sh && \
+    echo 'exec su -p ReachableCEO-Tools -c "jupyter notebook --ip=0.0.0.0 --port=8888 --no-browser --allow-root --notebook-dir=/workspace/notebooks"' >> /jupyter_start.sh && \
+    chmod +x /jupyter_start.sh
+
+# Expose Jupyter on port 8888
+EXPOSE 8888
+
+# Create a working directory
+WORKDIR /workspace
+
+# The entrypoint from the base image handles user creation