feat: rebrand to RootNode Academy + add Real Ops scenario bundle

- Rename app title, header, tagline, footer, terminal tab to RootNode Academy
- Apply RootNode color palette (#39FF14 green, #00D4FF blue, GitHub-style darks)
- Add rootnode-runaway-monitor scenario (homelab NOC incident: oversized memory request)
- Add rootnode-real-ops bundle in terminal-green accent
- Update package name to rootnode-academy-ui

frontend/src/App.jsx

@@ -410,9 +410,9 @@ export default function App() {
       )}
 
       <footer className={styles.footer}>
-        <div>&copy; {new Date().getFullYear()} The KubeKosh Project &bull; All rights reserved</div>
+        <div>&copy; {new Date().getFullYear()} RootNode Academy &bull; All rights reserved</div>
         <div>
-          Made with <span className={styles.heart}>❤️</span> by <a href="https://github.com/zeborg" target="_blank" rel="noopener noreferrer" className={styles.footerLink}>zeborg</a>
+          Built on the open-source <a href="https://github.com/zeborg/kubekosh" target="_blank" rel="noopener noreferrer" className={styles.footerLink}>KubeKosh</a> project by zeborg
         </div>
       </footer>
     </div>