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.

2009-fpga/README.md

@@ -1,9 +1,10 @@
 # 2009–2011: the FPGA version
 
-The first hexapod, built on the original frame (`../original-frame/`) and driven by an FPGA.
-The FPGA code has not survived; what is left are the photos and videos in `media/`, among them
-`hexapod film 18-11-09.wmv`.
+The first hexapod, driven by an FPGA. Its frame, `original-frame/`, was the mechanical base of every
+version up to 2023. The FPGA code has not survived; what is left are the photos and videos in `media/`,
+among them `hexapod film 18-11-09.wmv`.
 
-`media/` holds every hexapod photo and video created on or before 2 November 2011 20:44:07; everything later
-is in `../2011-firefly-mega-ssc32/media/`. (Most dates are copy dates, so the split follows the owner's check
-of the files, not the exact moment each photo was taken. `DSCF*` photos carry a camera date of 2003.)
+- `original-frame/` – the leg, body and bracket designs (DXF/DWG, 2009–2011).
+- `media/` – photos and videos of the FPGA version, sorted by the owner; those of the FireFly version are in
+  `../2011-firefly-mega-ssc32/media/`. (Most file dates are copy dates. `DSCF*` photos carry a camera date
+  of 2003.)

2009-fpga/original-frame/README.md

@@ -0,0 +1,12 @@
+# Original frame (2009–2023)
+
+The mechanical design every version up to 2023 was built on. The 2026 robot has a new design, see
+`../../2026-current/hardware/fusion360/`.
+
+| File | Date | What |
+|---|---|---|
+| `poot.dxf` | 2009-10 | leg ("poot") |
+| `hexapod been.dxf` | 2009-12 | leg ("been") |
+| `poot2.dwg` | 2011-04 | leg, second version |
+| `body.dxf`, `Body.jpg` | 2011-07 | body plate, for the Arduino Mega + SSC-32 rebuild |
+| `bracket.dxf` | 2011-07 | servo bracket |