style(frontend): 修复 prettier 格式门禁

三个本分支改动的文件未过 prettier --check，导致 npm run check 与部署门禁红灯。
按项目风格重新排版后台分销站点页、移动端发布页与定价计算 composable，不改动任何逻辑。

验证：npx prettier --check . 通过；npm run check（format + eslint --max-warnings=0 + vue-tsc）通过；vitest 7 文件 / 32 用例通过。

frontend/src/features/admin/views/AdminDistributionSitesView.vue

@@ -348,7 +348,10 @@ onMounted(() => {
         </el-table-column>
         <el-table-column label="收号下调" width="110">
           <template #default="{ row }">
-            <el-tag :type="Number(row.receive_ratio_delta || 0) > 0 ? 'warning' : 'info'" size="small">
+            <el-tag
+              :type="Number(row.receive_ratio_delta || 0) > 0 ? 'warning' : 'info'"
+              size="small"
+            >
               {{
                 Number(row.receive_ratio_delta || 0) > 0
                   ? `-${Number(row.receive_ratio_delta).toFixed(1)} 点`
@@ -599,7 +602,11 @@ onMounted(() => {
       </el-form>
       <template #footer>
         <el-button @click="receiveRatioDialogVisible = false">取消</el-button>
-        <el-button type="primary" :loading="receiveRatioSubmitting" @click="handleReceiveRatioSubmit">
+        <el-button
+          type="primary"
+          :loading="receiveRatioSubmitting"
+          @click="handleReceiveRatioSubmit"
+        >
           保存设置
         </el-button>
       </template>