feat: integrate custom features for smart context management

- Added a new integration script to manage custom features related to smart context.
- Implemented handlers for smart context operations (get, update, clear, stats) in ipc.
- Created a SmartContextStore class to manage context snippets and summaries.
- Developed hooks for React to interact with smart context (useSmartContext, useUpdateSmartContext, useClearSmartContext, useSmartContextStats).
- Included backup and restore functionality in the integration script.
- Validated integration by checking for custom modifications and file existence.

backups/backup-20251218-094212/src/components/ZoomSelector.tsx

@@ -0,0 +1,72 @@
+import { useMemo } from "react";
+import { useSettings } from "@/hooks/useSettings";
+import { ZoomLevel, ZoomLevelSchema } from "@/lib/schemas";
+import { Label } from "@/components/ui/label";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+
+const ZOOM_LEVEL_LABELS: Record<ZoomLevel, string> = {
+  "90": "90%",
+  "100": "100%",
+  "110": "110%",
+  "125": "125%",
+  "150": "150%",
+};
+
+const ZOOM_LEVEL_DESCRIPTIONS: Record<ZoomLevel, string> = {
+  "90": "Slightly zoomed out to fit more content on screen.",
+  "100": "Default zoom level.",
+  "110": "Zoom in a little for easier reading.",
+  "125": "Large zoom for improved readability.",
+  "150": "Maximum zoom for maximum accessibility.",
+};
+
+const DEFAULT_ZOOM_LEVEL: ZoomLevel = "100";
+
+export function ZoomSelector() {
+  const { settings, updateSettings } = useSettings();
+  const currentZoomLevel: ZoomLevel = useMemo(() => {
+    const value = settings?.zoomLevel ?? DEFAULT_ZOOM_LEVEL;
+    return ZoomLevelSchema.safeParse(value).success
+      ? (value as ZoomLevel)
+      : DEFAULT_ZOOM_LEVEL;
+  }, [settings?.zoomLevel]);
+
+  return (
+    <div className="space-y-2">
+      <div className="flex flex-col gap-1">
+        <Label htmlFor="zoom-level">Zoom level</Label>
+        <p className="text-sm text-muted-foreground">
+          Adjusts the zoom level to make content easier to read.
+        </p>
+      </div>
+      <Select
+        value={currentZoomLevel}
+        onValueChange={(value) =>
+          updateSettings({ zoomLevel: value as ZoomLevel })
+        }
+      >
+        <SelectTrigger id="zoom-level" className="w-[220px]">
+          <SelectValue placeholder="Select zoom level" />
+        </SelectTrigger>
+        <SelectContent>
+          {Object.entries(ZOOM_LEVEL_LABELS).map(([value, label]) => (
+            <SelectItem key={value} value={value}>
+              <div className="flex flex-col text-left">
+                <span>{label}</span>
+                <span className="text-xs text-muted-foreground">
+                  {ZOOM_LEVEL_DESCRIPTIONS[value as ZoomLevel]}
+                </span>
+              </div>
+            </SelectItem>
+          ))}
+        </SelectContent>
+      </Select>
+    </div>
+  );
+}