MyAnythingList v119 test package

Root files:
- index_beta_2026-05-23-v119.html
- frame-test.html
- README.txt

Use frame-test.html as a local launcher.
Buttons:
- Google: opens Google
- Beta Normal: opens index_beta_2026-05-23-v119.html without debug overlays
- Beta Debug: opens index_beta_2026-05-23-v119.html?debug=frames with frame HUD, start marker, and function-order log

v119 changes:
- Consolidated bulky top-of-source comments into bottom-of-file MAINTAINER NOTES.
- Added a single top AI/maintainer note directing editors to bottom notes.
- Added command-bar closed-geometry locking to remove subtle post-draw menu drift.
- Added Beta Normal launcher button beside Google and Beta Debug.
