feat(分页): 添加最后一页判断逻辑并优化授权提示显示

在分页逻辑中增加 is_last_page 计算属性用于判断当前页是否为最后一页
优化授权提示的显示逻辑，仅在最后一页或非分页情况下显示

@@ -172,6 +172,16 @@ export function usePagination(formDataRef, options = {}) {
     })
     })
 
 
     /**
     /**
+     * 是否为最后一页
+     * @description 判断当前页索引是否位于过滤后的最后一页
+     * @returns {import('vue').ComputedRef<boolean>}
+     */
+    const is_last_page = computed(() => {
+        const last = filtered_pages.value.length - 1
+        return current_page_index.value === last
+    })
+
+    /**
      * 校验当前页
      * 校验当前页
      * @returns {Promise<boolean>} 是否通过校验
      * @returns {Promise<boolean>} 是否通过校验
      */
      */
@@ -237,6 +247,7 @@ export function usePagination(formDataRef, options = {}) {
         enable_pagination,
         enable_pagination,
         buildPages,
         buildPages,
         page_nav,
         page_nav,
+        is_last_page,
         validateCurrentPage,
         validateCurrentPage,
         handlePrev,
         handlePrev,
         handleNext,
         handleNext,

@@ -37,7 +37,7 @@
           v-if="enable_pagination"
           v-if="enable_pagination"
           :current="current_page_index"
           :current="current_page_index"
           :total="filtered_pages.length"
           :total="filtered_pages.length"
-          :is-last="current_page_index === filtered_pages.length - 1"
+          :is-last="is_last_page"
           :prev-label="page_nav.prev_text"
           :prev-label="page_nav.prev_text"
           :next-label="page_nav.next_text"
           :next-label="page_nav.next_text"
           :prev-btn-color="page_nav.prev_btn_color"
           :prev-btn-color="page_nav.prev_btn_color"
@@ -148,7 +148,8 @@
       /> -->
       /> -->
     </van-config-provider>
     </van-config-provider>
   </div>
   </div>
-  <div v-if="page_type === 'add'" style="text-align: center; color: #545454; font-size: 0.85rem; padding-bottom: 2rem">
+  <!-- TAG：分页使用时，仅在最后一页展示授权提示；非分页保持原逻辑显示 -->
+  <div v-if="page_type === 'add' && (!enable_pagination || is_last_page)" style="text-align: center; color: #545454; font-size: 0.85rem; padding-bottom: 2rem">
     提交即授权该表单收集你的填写信息
     提交即授权该表单收集你的填写信息
   </div>
   </div>
   <!-- 分页组件高度占位符 -->
   <!-- 分页组件高度占位符 -->
@@ -1471,6 +1472,7 @@ const {
     visible_form_data,
     visible_form_data,
     buildPages,
     buildPages,
     page_nav,
     page_nav,
+    is_last_page,
     handlePrev,
     handlePrev,
     handleNext,
     handleNext,
     handleSubmit,
     handleSubmit,