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/ImportAppButton.tsx

@@ -0,0 +1,27 @@
+import { Button } from "@/components/ui/button";
+import { Upload } from "lucide-react";
+import { useState } from "react";
+import { ImportAppDialog } from "./ImportAppDialog";
+
+export function ImportAppButton() {
+  const [isDialogOpen, setIsDialogOpen] = useState(false);
+
+  return (
+    <>
+      <div className="px-4 pb-1 flex justify-center">
+        <Button
+          variant="default"
+          size="default"
+          onClick={() => setIsDialogOpen(true)}
+        >
+          <Upload className="mr-2 h-4 w-4" />
+          Import App
+        </Button>
+      </div>
+      <ImportAppDialog
+        isOpen={isDialogOpen}
+        onClose={() => setIsDialogOpen(false)}
+      />
+    </>
+  );
+}