settings: show sleep inhibitor state, update stage names

IdleConfig.qml now shows:
- Full IdleCoordinator state names including Suspending/Asleep/Waking
- Sleep inhibitor held/released status (from SessionEvents)
- stepUp grant TTL presence

hypridle.conf changes (NOT in repo — apply to ~/.config/hypr/):
- lock_cmd simplified to loginctl lock-session (SessionEvents catches
  the Lock signal); hyprlock fallback if quickshell is down
- before_sleep_cmd REMOVED — SessionEvents handles PrepareForSleep
- inhibit_sleep REMOVED — SessionEvents holds the delay inhibitor
- suspend_cmd prefers loginctl over systemctl for PrepareForSleep signal

surfaces/quickshell/modules/settings/IdleConfig.qml

@@ -29,17 +29,23 @@ ContentPage {
     forceWidth: true
 
     // --- Live stage readout (polled over IPC) ----------------------------
-    // 0 Active · 1 Dimmed · 2 Lock requested · 3 Lock secure — the
-    // IdleCoordinator.State enum, surfaced through session.state().
+    // 0 Active · 1 Dimmed · 2 Lock requested · 3 Lock secure ·
+    // 4 Suspending · 5 Asleep · 6 Waking — the IdleCoordinator.State
+    // enum, surfaced through session.state().
     property int liveStage: -1
     property bool liveNative: false
     property bool probeOk: false
+    property bool sleepInhibitorHeld: false
+    property bool stepUpEnabled: false
 
     readonly property var stageNames: [
         Translation.tr("Active"),
         Translation.tr("Dimmed"),
         Translation.tr("Lock requested"),
-        Translation.tr("Lock secure")
+        Translation.tr("Lock secure"),
+        Translation.tr("Suspending"),
+        Translation.tr("Asleep"),
+        Translation.tr("Waking")
     ]
     function stageLabel(s) {
         return (s >= 0 && s < stageNames.length) ? stageNames[s] : Translation.tr("unknown");
@@ -55,6 +61,8 @@ ContentPage {
                     const d = JSON.parse(stateOut.text);
                     page.liveStage = d.idle?.stage ?? -1;
                     page.liveNative = d.idle?.nativeCoordinatorEnabled ?? false;
+                    page.sleepInhibitorHeld = d.sleepInhibitorHeld ?? false;
+                    page.stepUpEnabled = d.stepUp?.grantTtlMs > 0 ?? false;
                     page.probeOk = true;
                 } catch (e) {
                     page.probeOk = false;
@@ -98,6 +106,22 @@ ContentPage {
                 ? Translation.tr("The native coordinator is driving idle transitions. Dim and lock fire on the timers below.")
                 : Translation.tr("The native coordinator is off, so the timers below do not run — hypridle owns screen-off. Only lock-requested and lock-secure transitions are reported here.")
         }
+
+        RowLayout {
+            Layout.fillWidth: true
+            spacing: 12
+
+            StyledText {
+                text: page.sleepInhibitorHeld
+                    ? Translation.tr("Sleep inhibitor: held (suspend blocked until lock is secure)")
+                    : Translation.tr("Sleep inhibitor: released (suspend may proceed)")
+                font.pixelSize: Appearance.font.pixelSize.normal
+                color: page.sleepInhibitorHeld
+                    ? Appearance.colors.colOnLayer1
+                    : Appearance.colors.colSubtext
+            }
+        }
+    }
     }
 
     ContentSection {