add billable rate restriction interfaces for billing extension

resources/js/Components/Common/StatCard.vue

@@ -9,7 +9,7 @@ defineProps<{
     <div class="rounded-lg bg-card-background border-card-border shadow-card border px-3.5 py-2.5">
         <dt class="font-medium text-sm text-text-secondary">{{ title }}</dt>
         <dd class="text-xl text-text-primary pt-1 font-medium">
-            {{ value ?? '--' }}
+            <slot>{{ value ?? '--' }}</slot>
         </dd>
     </div>
 </template>