Commit the control-panel terminal frontend (xterm) so clean builds keep it

The terminal Alpine component + xterm/xterm-addon-fit only ever existed in an
out-of-band build; committed source never had them, so clean CI rebuilds shipped
a bundle WITHOUT the terminal (blank panel). Add resources/js/hosting-terminal.js
(window.hostingInteractiveTerminal, recovered from the last working build), import
it from app.js, and add xterm deps to package.json/lock. Verified: a clean
'npm ci && vite build' now includes the component + xterm.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

resources/js/app.js

@@ -1,5 +1,9 @@
 import './bootstrap';
 
+// Registers window.hostingInteractiveTerminal (xterm.js) used by the control-panel
+// terminal blade. Must stay imported so clean builds include the terminal.
+import './hosting-terminal';
+
 import { registerLadillConfirmStore, registerLadillModalHelpers } from './ladill-modals';
 import { registerLadillSearchShortcut } from './ladill-search-shortcut';
 import { registerLadillDomainPurchase } from './ladill-domain-purchase';