fix(audit): P2 frontend any→concrete types (181→61), heroicons→lucide-react, missing type exports, toast API, Select options, TaskStatus types; P2-9 hooks.py type annotations

frontend/src/api/auth.ts

@@ -2,6 +2,7 @@
  * Authentication hooks: login, logout, current user, password reset, tenant switching.
  */
 
+import { asError } from '@/utils/errorTypes';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { apiPost, apiGet, setCsrfToken } from './client';
 import { useAuthStore } from '@/store/authStore';
@@ -44,8 +45,8 @@ export function useLogin() {
         setCsrfToken(data.csrf_token);
       }
     },
-    onError: (error: any) => {
-      setError(error.message || 'Login failed');
+    onError: (error: unknown) => { const errObj = asError(error);
+      setError(errObj.message || 'Login failed');
     },
   });
 }