fix: 活动报名弹窗重复导致点击家庭成员关闭弹窗

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

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

cfc-frontend/pages/activity/activity-detail/activity-detail.vue

@@ -250,177 +250,6 @@
         </view>
       </view>
     </view>
-
-    <!-- 空状态 -->
-    <view v-else class="empty-wrap">
-      <text class="empty-text">活动不存在或已下架</text>
-    </view>
-
-    <!-- 分享海报 -->
-    <ContentSharePoster
-      :show="showPoster"
-      :title="activity && activity.title"
-      :coverImage="activity && getImageUrl(activity.coverImage)"
-      :qrCodeBase64="posterQrCode"
-      typeLabel="活动推荐"
-      :dimensionCode="activity && activity.dimensionCode"
-      :summary="posterSummary"
-      :priceText="posterPriceText"
-      :inviteText="posterInviteText"
-      @close="closePoster"
-    />
-
-      <!-- 底部操作栏：必须与 scroll-view 平级，否则 iOS 上 position: fixed 在 scroll-view 内不生效（按钮不显示） -->
-      <view class="bottom-bar" v-if="!loading && activity.id">
-        <view class="price-info">
-          <text class="bottom-type">活动</text>
-          <text class="bottom-vendor" v-if="activity.vendorName">{{ activity.vendorName }}</text>
-        </view>
-        <view class="action-btns">
-          <button class="share-btn" @click="generatePoster">
-            <text class="share-btn-icon">📤</text>
-            <text class="share-btn-text">分享</text>
-          </button>
-          <!-- 报名按钮（仅报名中/未报名时显示） -->
-          <button
-            v-if="canRegister"
-            class="btn-register"
-            @click="onRegister"
-          >
-            <text v-if="hasFee">¥{{ minFeeText }} 立即报名</text>
-            <text v-else>立即报名</text>
-          </button>
-
-          <!-- 已报名待审核 -->
-          <button
-            v-if="activity.requireRegistration === 1 && registrationStatus === 'pending'"
-            class="btn-register-done"
-            disabled
-          >
-            <text>报名待审核</text>
-          </button>
-          
-          <!-- 已报名可取消 -->
-          <button
-            v-if="activity.requireRegistration === 1 && (registrationStatus === 'approved' || registrationStatus === 'registered')"
-            class="btn-cancel"
-            :disabled="registrationLoading"
-            @click="onCancelRegistration"
-          >
-            <text>取消报名</text>
-          </button>
-          
-          <!-- 签到按钮（仅进行中时显示） -->
-          <button
-            v-if="activity.displayStatus === 'ongoing'"
-            class="btn-checkin"
-            :class="{ 'btn-checkin-done': checkinDone, 'btn-checkin-loading': checkinLoading }"
-            :disabled="checkinLoading || checkinDone"
-            @click="onCheckin"
-          >
-            <text v-if="checkinLoading">签到中...</text>
-            <text v-else-if="checkinDone && activity.requireCheckinReview === 1">已签到待审核</text>
-            <text v-else-if="checkinDone">已签到 ✓</text>
-            <text v-else>签到</text>
-          </button>
-          <text v-if="activity.requireCheckinReview === 1 && !checkinDone && activity.displayStatus === 'ongoing'" class="checkin-review-hint">签到需要管理员审核</text>
-        </view>
-      </view>
-      
-      <!-- 能量扣减提示弹窗 -->
-      <modal v-if="showPenaltyModal" class="penalty-modal" :show="showPenaltyModal" @close="showPenaltyModal = false">
-        <view class="penalty-content">
-          <text class="penalty-title">签到成功但已扣能量</text>
-          <text class="penalty-desc">您未报名参加此活动，已被扣除 {{ penaltyAmount }} 点能量值</text>
-          <button class="penalty-btn" @click="showPenaltyModal = false">我知道了</button>
-        </view>
-      </modal>
-
-      <!-- 评价弹窗 -->
-      <modal v-if="showFeedbackModal" class="feedback-modal-overlay" :show="showFeedbackModal" @close="showFeedbackModal = false">
-        <view class="feedback-modal">
-          <text class="feedback-modal-title">活动评价</text>
-
-          <view class="rating-row" v-for="(dim, dimIdx) in feedbackDimensions" :key="dimIdx">
-            <text class="rating-label">{{ dim }}</text>
-            <view class="stars">
-              <text v-for="star in 5" :key="star"
-                class="star-icon"
-                :class="{'star-active': star <= (feedbackRatings[dim] || 0)}"
-                @click="feedbackRatings[dim] = star">★</text>
-            </view>
-          </view>
-
-          <textarea class="feedback-textarea" v-model="feedbackComment" placeholder="说说您的体验..." maxlength="500" />
-
-          <view class="feedback-modal-actions">
-            <button class="feedback-cancel-btn" @click="showFeedbackModal = false">取消</button>
-            <button class="feedback-submit-btn" :disabled="feedbackSubmitting" @click="submitFeedback">
-              <text v-if="feedbackSubmitting">提交中...</text>
-              <text v-else>提交评价</text>
-            </button>
-          </view>
-        </view>
-      </modal>
-
-      <!-- 报名表单弹窗 -->
-      <view v-if="showRegModal" class="reg-modal-overlay" @click.self="closeRegModal">
-        <view class="reg-modal">
-          <text class="reg-modal-title">活动报名</text>
-
-          <!-- 家庭成员选择 -->
-          <view class="reg-family-section" v-if="familyMembers.length > 0">
-            <text class="reg-section-label">从家庭成员中选择</text>
-            <view class="reg-family-list">
-              <view
-                class="reg-family-item"
-                v-for="member in familyMembers"
-                :key="member.id"
-                :class="{'reg-family-item-selected': isMemberSelected(member)}"
-                @click="toggleFamilyMember(member)"
-              >
-                <view class="reg-family-info">
-                  <text class="reg-family-name">{{ member.name }}</text>
-                  <text class="reg-family-relation">{{ member.relation }}</text>
-                </view>
-                <text class="reg-checkmark" v-if="isMemberSelected(member)">✓</text>
-              </view>
-            </view>
-          </view>
-
-          <!-- 报名人列表 -->
-          <view class="reg-list">
-            <text class="reg-section-label">报名人</text>
-            <view class="reg-entry" v-for="(entry, idx) in registrants" :key="idx">
-              <input class="reg-input reg-input-name" v-model="entry.name" placeholder="姓名" />
-              <input class="reg-input reg-input-phone" v-model="entry.phone" placeholder="手机号" type="number" maxlength="11" />
-              <text class="reg-remove" @click="removeRegistrant(idx)">✕</text>
-            </view>
-            <button class="reg-add-btn" @click="addManualEntry">+ 添加报名人</button>
-          </view>
-
-          <!-- 合计 -->
-          <view class="reg-total" v-if="hasFee">
-            <text>共 {{ registrants.length }} 人 · 合计 ¥{{ registrantsTotal }}</text>
-          </view>
-
-          <!-- 操作按钮 -->
-          <view class="reg-actions">
-            <button class="reg-cancel" @click="closeRegModal">取消</button>
-            <button class="reg-submit" :disabled="regSubmitting || registrants.length === 0" @click="submitRegistration">
-              <text v-if="regSubmitting">提交中...</text>
-              <text v-else>确认报名</text>
-            </button>
-          </view>
-        </view>
-      </view>
-    </scroll-view>
-
-    <!-- 空状态 -->
-    <view v-else class="empty-wrap">
-      <text class="empty-text">活动不存在或已下架</text>
-    </view>
-
     <!-- 分享海报 -->
     <ContentSharePoster
       :show="showPoster"