feat(navigation): add qualification course link

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/components/frontend/blocks/NavUser.tsx

@@ -5,6 +5,7 @@ import {
   Bird,
   Bomb,
   ChevronsUpDown,
+  Crosshair,
   FileTextIcon,
   LogOut,
   Radio,
@@ -30,7 +31,6 @@ import {
   SidebarMenuItem,
   useSidebar,
 } from "@/components/ui/sidebar";
-import type { User } from "@/payload-types";
 import { ImpersonationModal } from "@/components/frontend/impersonation/ImpersonationModal";
 import { getImpersonationUsers } from "@/app/(frontend)/impersonate/actions";
 
@@ -52,7 +52,6 @@ export function NavUser({
   const [loggingOut, setLoggingOut] = useState(false);
   const [showImpersonationModal, setShowImpersonationModal] = useState(false);
   const [impersonationUsers, setImpersonationUsers] = useState<any[]>([]);
-  const [loadingImpersonationUsers, setLoadingImpersonationUsers] = useState(false);
 
   const primaryLine = showCallsign ? user.username : user.displayName;
   const secondaryLine = showCallsign ? user.displayName : user.username;
@@ -71,14 +70,11 @@ export function NavUser({
   };
 
   const handleOpenImpersonationModal = async () => {
-    setLoadingImpersonationUsers(true);
     try {
       const users = await getImpersonationUsers();
       setImpersonationUsers(users);
     } catch (error) {
       console.error("Failed to load impersonation users:", error);
-    } finally {
-      setLoadingImpersonationUsers(false);
     }
     setShowImpersonationModal(true);
   };
@@ -154,6 +150,12 @@ export function NavUser({
                   Radio Traffic
                 </Link>
               </DropdownMenuItem>
+              <DropdownMenuItem asChild>
+                <Link href="/qualification">
+                  <Crosshair />
+                  Qualification Course
+                </Link>
+              </DropdownMenuItem>
             </DropdownMenuGroup>
             <DropdownMenuSeparator />
             <DropdownMenuGroup>