Make every settings row reachable, and every accessibility switch honest

Claude-Session: https://claude.ai/code/session_01Ms2FbjQy31TVf3CEvQhGM8

config/dot/quickshell/shell.qml

@@ -89,6 +89,15 @@ ShellRoot {
         Osd {}
     }
 
+    // The visual bell, on every screen at once -- someone watching the other
+    // monitor is exactly who this is for. Each one stays unmapped until a
+    // bell-eligible notification arrives, and does nothing at all while the
+    // Visual alerts setting is off.
+    Variants {
+        model: Quickshell.screens
+        VisualBell {}
+    }
+
     DisplayIdentify {}
 
     // ── Single-instance overlays ────────────────────────────────────────────
@@ -331,6 +340,38 @@ ShellRoot {
         }
     }
 
+    // The magnifier keys: SUPER+ALT+= steps in, SUPER+ALT+- steps out,
+    // SUPER+ALT+0 goes back to 1.00 ×.
+    //
+    // They come through the shell rather than setting cursor:zoom_factor on the
+    // compositor directly, so the stored preference, the Magnifier slider and
+    // what is actually on screen are always the same number -- and so there is
+    // an OSD saying what the magnification now is, which matters when the thing
+    // you are looking at is somewhere else entirely.
+    //
+    // A dead shell means dead zoom keys. That is honest: with the shell down
+    // there is no bar, no dock and no OSD either.
+    IpcHandler {
+        target: "accessibility"
+
+        function zoom(direction: string): string { return Accessibility.stepZoom(direction); }
+
+        // Re-probe the screen reader and the accessibility bus. The settings
+        // page calls Accessibility.refreshScreenReader() directly when it
+        // opens; this is the same probe from outside, so `status` below can be
+        // asked for something other than "not looked yet".
+        function refresh(): void { Accessibility.refreshScreenReader(); }
+
+        function status(): string {
+            return JSON.stringify({
+                magnifierFactor: Accessibility.magnifierFactor,
+                visualAlerts: Settings.visualAlerts,
+                orcaRunning: Accessibility.orcaRunning,
+                accessibilityBusRunning: Accessibility.accessibilityBusRunning
+            });
+        }
+    }
+
     IpcHandler {
         target: "activity"