feat: add teacher help cards

ai_knowledge_base_v2/apps/user-client/src/components/SessionQuota.vue

@@ -9,11 +9,13 @@ const props = defineProps<{
   limit: number;
   entitlement?: UserEntitlementSummary | null;
   finishing?: boolean;
+  generatingHelpCard?: boolean;
 }>();
 
 defineEmits<{
   finishTopic: [];
   openProfile: [];
+  generateHelpCard: [];
 }>();
 
 const hasEntitlement = computed(() => Boolean(props.entitlement));
@@ -43,6 +45,15 @@ const limitText = computed(() => displayLimit.value === null ? "不限" : String
       <button type="button" class="quota-link" :disabled="finishing" @click="$emit('finishTopic')">
         {{ finishing ? '沉淀中' : '沉淀本主题' }}
       </button>
+      <button
+        v-if="entitlement?.allowHelpCard"
+        type="button"
+        class="quota-link"
+        :disabled="generatingHelpCard"
+        @click="$emit('generateHelpCard')"
+      >
+        {{ generatingHelpCard ? '生成中' : '求助卡' }}
+      </button>
       <strong>{{ displayUsed }}/{{ limitText }}</strong>
     </div>
   </section>