move lock dir up to shell/lock as sibling of modules

shell/lock/Lock.qml

@@ -0,0 +1,78 @@
+import QtQuick
+import Quickshell
+import Quickshell.Io
+import Quickshell.Wayland
+import "../modules" as M
+
+Scope {
+    id: root
+
+    readonly property bool _enabled: M.Modules.lock.enable
+    property string _sessionPath: ""
+
+    WlSessionLock {
+        id: _lock
+
+        LockSurface {
+            lock: _lock
+            auth: _auth
+        }
+    }
+
+    LockAuth {
+        id: _auth
+        lock: _lock
+    }
+
+    // Resolve the actual logind session object path at startup
+    Process {
+        id: _sessionResolver
+        command: ["busctl", "call", "--system", "org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", "GetSession", "s", "auto"]
+        running: root._enabled
+
+        stdout: SplitParser {
+            onRead: data => {
+                // Output: o "/org/freedesktop/login1/session/_32"
+                const match = data.match(/"([^"]+)"/);
+                if (match)
+                    root._sessionPath = match[1];
+            }
+        }
+
+        onExited: {
+            if (root._sessionPath)
+                _logindMonitor.running = true;
+        }
+    }
+
+    // Listen for logind Lock/Unlock signals via gdbus monitor.
+    // TODO: replace with native D-Bus integration when nova-stats becomes a quickshell plugin
+    Process {
+        id: _logindMonitor
+        command: ["gdbus", "monitor", "--system", "--dest", "org.freedesktop.login1", "--object-path", root._sessionPath]
+        running: false
+
+        stdout: SplitParser {
+            onRead: data => {
+                if (data.indexOf(".Lock ()") !== -1 && root._enabled)
+                    _lock.locked = true;
+            // Unlock is PAM-driven, ignore logind Unlock signal
+            }
+        }
+    }
+
+    // Set logind LockedHint when lock state changes
+    Process {
+        id: _lockedHint
+        command: ["busctl", "call", "--system", "org.freedesktop.login1", root._sessionPath || "/org/freedesktop/login1/session/auto", "org.freedesktop.login1.Session", "SetLockedHint", "b", _lock.locked ? "true" : "false"]
+    }
+
+    Connections {
+        target: _lock
+
+        function onLockStateChanged() {
+            if (root._sessionPath)
+                _lockedHint.running = true;
+        }
+    }
+}