fix: handle Cloud Run 409 by linking to existing service; show provisioning spinner not failure

Co-authored-by: Cursor <cursoragent@cursor.com>

components/project-creation-modal.tsx

@@ -329,9 +329,11 @@ export function ProjectCreationModal({
                     {createdTheiaUrl ? (
                       <CheckCircle2 className="h-3.5 w-3.5 text-green-500 shrink-0" />
                     ) : (
-                      <XCircle className="h-3.5 w-3.5 text-yellow-500 shrink-0" />
+                      <Loader2 className="h-3.5 w-3.5 text-blue-400 shrink-0 animate-spin" />
                     )}
-                    Dedicated IDE workspace{createdTheiaUrl ? ` at ${createdTheiaUrl.replace('https://', '')}` : ' — provisioning failed'}
+                    Dedicated IDE workspace{createdTheiaUrl
+                      ? ` at ${createdTheiaUrl.replace('https://', '')}`
+                      : ' — provisioning in background (ready in ~30s)'}
                   </li>
                 </ul>
               </div>