fix: back buttons missing router instance mapping and fix array structure in supabase route stops fetch

frontend/src/views/AdminDrivers.vue

@@ -1,7 +1,7 @@
 <template>
   <div class="admin-drivers">
     <div class="header">
-      <button class="back-link" @click="$router.push('/admin')">← Volver al Panel</button>
+      <button class="back-link" @click="router.push('/admin')">← Volver al Panel</button>
       <h1>Gestión de Conductores y Taxis</h1>
       <div class="header-actions">
         <button class="btn-primary" @click="openRegisterModal">
@@ -336,8 +336,10 @@
 import { ref, onMounted, reactive, computed } from 'vue'
 import { usersService } from '@/services/usersService'
 import { authService } from '@/services/authService'
+import { useRouter } from 'vue-router'
 import { supabase } from '@/supabase'
 
+const router = useRouter()
 const activeTab = ref<'drivers' | 'taxis'>('drivers')
 const isLoading = ref(false)
 const activeDrivers = ref<any[]>([])