Add What I’m Working On page

[jeffthomasiii]

Summary

Adds a new /working-on/ page that presents a living, reader-facing view of current writing, software experiments, and personal learning.

Structure

• Writing & Publishing
• Ideas I’m Developing
• Building & Experimenting
• Learning & Exploring
• Ongoing

Editorial approach

• Distinguishes active manuscripts and working software from early concepts
• Keeps early book ideas visually quieter so they do not read as announced releases
• Includes public tools with links and selected private experiments without exposing private repositories
• Omits Latte & Lounge until Samatra is ready to discuss it publicly
• Uses Just A Thought’s calm editorial visual language rather than another project-gallery treatment

Notes

• This PR intentionally does not add the page to primary navigation yet. The page can be reviewed first, then we can decide whether the permanent doorway belongs on About, Professional Background, the footer, or somewhere else.