Fix horizontal app index key handling

Ariver

2026-06-19 81b5a5f847e74fe1106829b13db2cccda8dd5798

 C1.source/Sources/Aligner/QuickSwitchSessionController.swift

@@ -280,7 +280,27 @@

    func retriggerFromShortcut() {
        DevelopmentDiagnostics.log("quickSwitch.session.retriggerFromShortcut")
        show()
        guard isVisible else {
            show()
            return
        }

        guard currentViewModel != nil else {
            DevelopmentDiagnostics.log("quickSwitch.session.retriggerFromShortcut.noSnapshot", [
                "action": "fallbackShow"
            ])
            show()
            return
        }

        let didCycle = view.hoverNextAppGroupIndex()
        DevelopmentDiagnostics.log("quickSwitch.session.retriggerFromShortcut.hoverApp", [
            "didCycle": didCycle
        ])

        if !didCycle {
            show()
        }
    }

    func setWaterfallViewMode(_ mode: QuickSwitchWaterfallViewMode) {