feat(fake-llm-server): add initial setup for fake LLM server with TypeScript and Express

- Created package.json for dependencies and scripts
- Added tsconfig.json for TypeScript configuration
- Implemented fake stdio MCP server with basic calculator and environment variable printing tools
- Added shell script to run the fake stdio MCP server
- Updated root tsconfig.json for project references and path mapping

backups/backup-20251218-161645/src/components/chat/DeleteChatDialog.tsx

@@ -0,0 +1,52 @@
+import {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogTitle,
+} from "@/components/ui/alert-dialog";
+
+interface DeleteChatDialogProps {
+  isOpen: boolean;
+  onOpenChange: (open: boolean) => void;
+  onConfirmDelete: () => void;
+  chatTitle?: string;
+}
+
+export function DeleteChatDialog({
+  isOpen,
+  onOpenChange,
+  onConfirmDelete,
+  chatTitle,
+}: DeleteChatDialogProps) {
+  return (
+    <AlertDialog open={isOpen} onOpenChange={onOpenChange}>
+      <AlertDialogContent>
+        <AlertDialogHeader>
+          <AlertDialogTitle>Delete Chat</AlertDialogTitle>
+          <AlertDialogDescription>
+            Are you sure you want to delete "{chatTitle || "this chat"}"? This
+            action cannot be undone and all messages in this chat will be
+            permanently lost.
+            <br />
+            <br />
+            <strong>Note:</strong> Any code changes that have already been
+            accepted will be kept.
+          </AlertDialogDescription>
+        </AlertDialogHeader>
+        <AlertDialogFooter>
+          <AlertDialogCancel>Cancel</AlertDialogCancel>
+          <AlertDialogAction
+            onClick={onConfirmDelete}
+            className="bg-red-600 text-white hover:bg-red-700 dark:bg-red-600 dark:text-white dark:hover:bg-red-700"
+          >
+            Delete Chat
+          </AlertDialogAction>
+        </AlertDialogFooter>
+      </AlertDialogContent>
+    </AlertDialog>
+  );
+}