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.

README.md

@@ -10,8 +10,7 @@ named after the year it started, with its firmware, simulation, hardware, docume
 
 | Folder | When | Hardware | What it did |
 |---|---|---|---|
-| [`original-frame/`](original-frame/) | 2009–2023 | own leg and body design (DXF/DWG) | the frame every version up to 2023 was built on (legs 2009, body and bracket 2011) |
-| [`2009-fpga/`](2009-fpga/) | 2009–2011 | FPGA | the first version. The code is lost; only photos and videos are left |
+| [`2009-fpga/`](2009-fpga/) | 2009–2011 | FPGA, own frame design | the first version. The code is lost; photos, videos and the frame design (`original-frame/`, the base of every version up to 2023) are left |
 | [`2011-firefly-mega-ssc32/`](2011-firefly-mega-ssc32/) | 2011–2012 | Arduino Mega 2560 + Lynxmotion SSC-32 | "FireFly": walking sequences with a Wii Nunchuk, later IR remote, ultrasonic radar head and GPS |
 | [`2012-simulation/`](2012-simulation/) | 2012–2014 | PC | a Visual Studio leg-IK visualiser (2012) and a Processing 3D simulator (2014) |
 | [`2014-ik-core-task-queue/`](2014-ik-core-task-queue/) | ≤ Feb 2014 | Arduino | a rewrite of the IK core around a task queue, without servo output yet |