Owner's reorganisation: frame into 2009-fpga, media regrouped, old math versions removed

- original-frame/ moves into 2009-fpga/original-frame/ (the FPGA version introduced the frame).
- Media regrouped by the owner: the two 2011-07-01 PNGs and MOV02256-02259 to FireFly, SNC00198.jpg to the FPGA version.
- Removed from the current version (still in the history): docs/math wisFORlive.docx, wisFORlive3.docx, wisFORlive4.docx and 'z axis rotation.url'.
- READMEs, 2026-current/CLAUDE.md and the root timeline updated to match.

2026-current/CLAUDE.md

@@ -400,7 +400,7 @@ Remote (`remote/README.md` has detail):
   first even then. Flag suspected robot bugs instead of fixing them. To
   try a robot fix, copy `robot/ shared/ sim/` to a scratch dir, patch the
   copy and run `sim_smoke` there.
-- The older generations (`../20xx-*/`, `../original-frame/`) are reference
+- The older generations (`../20xx-*/`, incl. `../2009-fpga/original-frame/`) are reference
   material from the owner. Don't modify them.
 - Protocol changes go in `shared/HexapodProtocol/` only. Update the size
   `static_assert`, this file's contract table, and both READMEs.