* perf: preserve matching Terminal settings sections during search
* fix(settings): keep a retained Terminal sessions section fresh and share the section stack
Move the search-stable section wrapper into SettingsSectionStack so every settings
pane keys sections by their own element key instead of the array index, and subscribe
ManageSessionsSection to the daemon session inventory invalidation signal so a kill
routed through another surface still reaches a section that no longer remounts.
Restates the read-count oracles as node identity plus non-growing read counts so a
future freshness fix does not read as a regression.
* test(settings): mock the Windows administrator section in the Terminal section-lifetime suite
* style: format Terminal section-lifetime reliability gate
Neil
daad41f892