Phase 4: pricing, about, area, Windows 10 and business pages

- /pricing: full price list, no-fix-no-fee terms, travel and payments
- /about: first-person page from confirmed facts, links to area pages
- /areas/[suburb]: Te Atatū Peninsula, Te Atatū South, Henderson and
  Massey, generated from src/lib/areas.js with suburb-specific copy
- /windows-10: options page with free Windows 11 check; October 2028
  used for business Extended Security Updates
- /business: $65/month plan (2 hours, no lock-in, no rollover)
- Nav gains Pricing/About and Business/Windows 10 links; footer rebuilt
  with address, hours and links; homepage links areas, /business and
  a Windows 10 banner; sitemap includes all new routes
- Mobile menu hides by its own height (fixes overflow with more links);
  hamburger now used below 900px so the link row never overlaps

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/app/components/Navbar.js

@@ -141,8 +141,44 @@ export default function Navbar() {
                   Virus Removal
                 </Link>
               </li>
+              <li>
+                <Link
+                  href="/business"
+                  className={`link ${
+                    pathname === "/business" ? styles.active : ""
+                  }`}
+                >
+                  Business IT Plans
+                </Link>
+              </li>
+              <li>
+                <Link
+                  href="/windows-10"
+                  className={`link ${
+                    pathname === "/windows-10" ? styles.active : ""
+                  }`}
+                >
+                  Windows 10 Help
+                </Link>
+              </li>
             </ul>
           </li>
+          <li>
+            <Link
+              href="/pricing"
+              className={`link ${pathname === "/pricing" ? styles.active : ""}`}
+            >
+              Pricing
+            </Link>
+          </li>
+          <li>
+            <Link
+              href="/about"
+              className={`link ${pathname === "/about" ? styles.active : ""}`}
+            >
+              About
+            </Link>
+          </li>
           <li>
             <Link
               href="/#faq"