Add deploy helper script

Add a deploy script and npm commands, and include
Navbar updates as requested.

Signed-off-by: codex@lucy.xalior.com

src/components/Navbar.tsx

@@ -14,7 +14,7 @@ export default function NavbarClient() {
                     <Nav className="me-auto mb-2 mb-lg-0">
                         <Link className="nav-link" href="/">Home</Link>
                         <Link className="nav-link" href="/registers">Registers</Link>
-                        {/*<Link className="nav-link" href="/zxdb">ZXDB</Link>*/}
+                        <Link className="nav-link" href="/zxdb">ZXDB</Link>
                     </Nav>
 
                     <ThemeDropdown />
@@ -22,4 +22,4 @@ export default function NavbarClient() {
             </Container>
         </Navbar>
     );
-}
+}