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Jinwoo-HandOrca
121faeca08
Deterministic e2e repro of the field 'ghost blank pane' incident (a
closed/finished setup-split leaf persisted in root with no binding and
remounted as a permanently blank pane) found two teardown gaps at the
hidden-view parking boundary:
1. The kept-exit guard ('freshly split pane can lose its newborn PTY
during setup') fired for HIDDEN panes. The hidden-delivery gate
withholds their bytes, so a hidden split always looks output-less and
its dead pane was kept — a binding-less ghost that dead-session
reconcile can never reach (no PTY id to prove dead). The keep is a
visible-failure UX; gate it on isVisibleRef and close hidden panes.
2. A PTY exit landing while the tab is PARKED reached only the parked
watcher's exit sidecar (hosts' onPtyExit requires a mounted
TerminalPane), which only disposed the watcher. The leaf's stale
binding then reattached on reveal and the daemon re-created the
exited session id as a fresh shell — silent pane resurrection. The
sidecar now collapses the dead leaf out of the stored layout via
detachTerminalLayoutLeaf (the observed-exit teardown's data half).
New e2e suite terminal-pane-close-layout-consistency.spec.ts sweeps
close/shell-exit at every hidden/park lifecycle phase and asserts
leaves(root) == bindings == live panes; all 7 scenarios pass. Unit
regressions added for both fixes.
Co-authored-by: Orca <help@stably.ai>