feat: Add scroll sensitivity configuration and improved wheel event handling (#242)

- Implement scroll sensitivity settings with low, default, and high modes
- Add RPC methods for getting and setting scroll sensitivity
- Enhance wheel event handling with device-specific sensitivity and clamping
- Create a new device settings store for managing scroll and trackpad parameters
- Update mouse settings route to include scroll sensitivity selection

ui/src/hooks/stores.ts

@@ -306,6 +306,78 @@ export const useSettingsStore = create(
   ),
 );
 
+export interface DeviceSettingsState {
+  trackpadSensitivity: number;
+  mouseSensitivity: number;
+  clampMin: number;
+  clampMax: number;
+  blockDelay: number;
+  trackpadThreshold: number;
+  scrollSensitivity: "low" | "default" | "high";
+  setScrollSensitivity: (sensitivity: DeviceSettingsState["scrollSensitivity"]) => void;
+}
+
+export const useDeviceSettingsStore = create<DeviceSettingsState>(set => ({
+  trackpadSensitivity: 3.0,
+  mouseSensitivity: 5.0,
+  clampMin: -8,
+  clampMax: 8,
+  blockDelay: 25,
+  trackpadThreshold: 10,
+
+  scrollSensitivity: "default",
+  setScrollSensitivity: sensitivity => {
+    const wheelSettings: Record<
+      DeviceSettingsState["scrollSensitivity"],
+      {
+        trackpadSensitivity: DeviceSettingsState["trackpadSensitivity"];
+        mouseSensitivity: DeviceSettingsState["mouseSensitivity"];
+        clampMin: DeviceSettingsState["clampMin"];
+        clampMax: DeviceSettingsState["clampMax"];
+        blockDelay: DeviceSettingsState["blockDelay"];
+        trackpadThreshold: DeviceSettingsState["trackpadThreshold"];
+      }
+    > = {
+      low: {
+        trackpadSensitivity: 2.0,
+        mouseSensitivity: 3.0,
+        clampMin: -6,
+        clampMax: 6,
+        blockDelay: 30,
+        trackpadThreshold: 10,
+      },
+      default: {
+        trackpadSensitivity: 3.0,
+        mouseSensitivity: 5.0,
+        clampMin: -8,
+        clampMax: 8,
+        blockDelay: 25,
+        trackpadThreshold: 10,
+      },
+      high: {
+        trackpadSensitivity: 4.0,
+        mouseSensitivity: 6.0,
+        clampMin: -9,
+        clampMax: 9,
+        blockDelay: 20,
+        trackpadThreshold: 10,
+      },
+    };
+
+    const settings = wheelSettings[sensitivity];
+
+    return set({
+      trackpadSensitivity: settings.trackpadSensitivity,
+      trackpadThreshold: settings.trackpadThreshold,
+      mouseSensitivity: settings.mouseSensitivity,
+      clampMin: settings.clampMin,
+      clampMax: settings.clampMax,
+      blockDelay: settings.blockDelay,
+      scrollSensitivity: sensitivity,
+    });
+  },
+}));
+
 export interface RemoteVirtualMediaState {
   source: "WebRTC" | "HTTP" | "Storage" | null;
   mode: "CDROM" | "Disk" | null;