`"mouseover"` now names nobody once the mouse leaves a unit, as in 1.12.1, where the publisher `0x492890` zeroes the mouseover guid pair on teardown (`0x4928e8`, `0x4928f2`) and a corpse or GameObject hover leaves it naming no unit. Before, `UnitExists("mouseover")`, `UnitName("mouseover")` and `UnitIsUnit("mouseover", …)` kept answering for the last unit hovered.
- The world tooltip's health bar follows its subject's guid, as the builder `0x529fe0` registers its health watcher on the guid (`0x52a0a8`), so clearing the token leaves the fading plate and its bar as they were; the clear fires no `UPDATE_MOUSEOVER_UNIT`, whose one fire site is the unit arm (`0x4929b3`).
- One definition of the hovered unit (none when a nearer GameObject wins the pick) serves the tooltip, the unit tokens and the aura feed, so they clear together.
Fixes#500
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>