Close desktop safety gaps

config/dot/quickshell/services/Wallpaper.qml

@@ -45,9 +45,10 @@ Singleton {
     readonly property string outputSignature: root.outputNames().slice().sort().join("|")
 
     property var outputNames: function() {
-        if (Array.isArray(root.outputOverride))
-            return root.outputOverride.slice();
-        return Quickshell.screens.map(screen => screen.name).filter(name => !!name);
+        const outputs = Array.isArray(root.outputOverride)
+            ? root.outputOverride.slice()
+            : Quickshell.screens.map(screen => screen.name).filter(name => !!name);
+        return root.primaryFirstOutputs(outputs);
     }
 
     readonly property var searchRoots: [
@@ -59,10 +60,8 @@ Singleton {
 
     Process {
         id: scan
-        command: ["bash", "-lc",
-            "find " + root.searchRoots.map(dir => `'${dir}'`).join(" ")
-            + " -maxdepth 2 -type f \\( -iname '*.jpg' -o -iname '*.jpeg' -o -iname '*.png' -o -iname '*.webp' \\)"
-            + " -printf '%T@ %p\\n' 2>/dev/null | sort -rn | cut -d' ' -f2- | head -60"]
+        command: [Quickshell.shellDir + "/scripts/panama-wallpaper-scan"]
+            .concat(root.searchRoots)
         stdout: StdioCollector {
             onStreamFinished: {
                 root.available = this.text.split("\n")
@@ -164,6 +163,18 @@ Singleton {
             activeQuery.running = true;
     }
 
+    // The saved primary role anchors Panama's per-monitor choices. Keep the
+    // compositor's remaining order stable so a reconnect does not reshuffle
+    // the rest of the picker unnecessarily.
+    function primaryFirstOutputs(outputs: var): var {
+        const stored = DesktopPreferences.get("displays");
+        const layouts = stored && typeof stored === "object" ? stored : {};
+        const primary = outputs.find(output => layouts[output]?.primary === true);
+        return primary === undefined
+            ? outputs
+            : [primary].concat(outputs.filter(output => output !== primary));
+    }
+
     function candidates(extra: var): var {
         const result = [];
         const discovered = Array.isArray(root.candidateOverride)