Session, instance, HUD, quick-entry and pet-overlay windows all open with
show: false and are revealed only by ready-to-show, so the Electron 40 bug
strands them exactly the way it stranded the primary window — and none of
them have the second-launch workaround that made the main-window case
recoverable.
Generalize the controller to any window and wire all six through one
wireWindowReveal helper. Callers pass their own reveal action (showInactive
for the pet overlay, show + focus for the HUD and quick entry) and their own
post-visible work, so whichever path wins runs them exactly once.
Quick entry now reveals the window the call created rather than whatever
`quickEntryWindow` points at when the event lands.
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