Archive August 2026 challenge and set September Practi"FALL" Prints active
- Create August-2026.md and update Challenge-Archive.md
- Set Current-Challenge.md to September 2026 Practi"FALL" Prints
- Set Upcoming-Challenge.md to October 2026 TBD
- Update Important-Dates.md and Home.md dates and milestones
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
