* fix(terminal): clear stranded link hover tooltip
* fix(terminal): declare the tooltip reserve var where it resolves
--orca-terminal-link-tooltip-height was declared on .pane-manager-root, a
class no live element carries, so both .xterm-container height calc()s were
invalid at computed-value time and collapsed to height:auto — the element
FitAddon measures, making rows a fixed point.
Also isolate _clearCurrentLink() so a throwing provider leave() cannot skip
the cache invalidation, and bound the e2e gap assertion on both sides.
Co-authored-by: Orca <help@stably.ai>
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Co-authored-by: Orca <help@stably.ai>
Jinwoo Hong
NeilandOrca