feat: 添加待确认分类功能，支持获取和确认未分类交易记录；优化相关组件和服务

Web/src/components/Budget/BudgetCard.vue

@@ -59,15 +59,14 @@
                 <van-button 
                   v-if="budget.description"
                   :icon="showDescription ? 'info' : 'info-o'" 
-                  size="mini" 
+                  size="small"
                   :type="showDescription ? 'primary' : 'default'"
                   plain 
-                  round
                   @click.stop="showDescription = !showDescription" 
                 />
                 <van-button 
                   icon="orders-o" 
-                  size="mini" 
+                  size="small" 
                   plain 
                   title="查询关联账单"
                   @click.stop="handleQueryBills"
@@ -75,13 +74,13 @@
                 <template v-if="budget.category !== 2">
                   <van-button 
                     icon="edit" 
-                    size="mini" 
+                    size="small" 
                     plain 
                     @click.stop="$emit('click', budget)" 
                   />
                   <van-button 
                     :icon="budget.isStopped ? 'play' : 'pause'" 
-                    size="mini" 
+                    size="small" 
                     plain 
                     @click.stop="$emit('toggle-stop', budget)" 
                   />