Refactor multiline formatting, link definitions, and code consistency across components and tests

- Improved readability by updating multiline statements and object definitions.
- Applied consistent link and button wrapping in `DemoSection` and other components.
- Enhanced test assertions and helper functions with uniform formatting and parentheses usage.

frontend/src/components/dev/DevLayout.tsx

@@ -10,7 +10,17 @@
 
 import Link from 'next/link';
 import { usePathname } from 'next/navigation';
-import { Code2, Palette, LayoutDashboard, Box, FileText, BookOpen, Home, ArrowLeft, Rocket } from 'lucide-react';
+import {
+  Code2,
+  Palette,
+  LayoutDashboard,
+  Box,
+  FileText,
+  BookOpen,
+  Home,
+  ArrowLeft,
+  Rocket,
+} from 'lucide-react';
 import { Button } from '@/components/ui/button';
 import { Badge } from '@/components/ui/badge';
 import { ThemeToggle } from '@/components/theme';

frontend/src/components/home/DemoSection.tsx

@@ -120,9 +120,7 @@ export function DemoSection() {
         transition={{ duration: 0.6, delay: 0.4 }}
       >
         <Button asChild variant="outline" size="lg" className="gap-2">
-          <Link href="/demos">
-            View Complete Demo Tour →
-          </Link>
+          <Link href="/demos">View Complete Demo Tour →</Link>
         </Button>
       </motion.div>
     </section>