fix(pda): leave expired sessions and clarify dispatch navigation

src/pages/dispatch/dispatch.vue

@@ -26,12 +26,12 @@
 				</view>
 
 				<template v-if="!loading && !current">
-					<view class="list-toolbar"><view><text class="list-title">待处理排车任务</text><text class="list-count">{{ tasks.length }} 个任务</text></view><button :disabled="loading" @tap="loadTasks">刷新</button></view>
+					<view class="list-toolbar"><view><text class="list-title">排车任务</text><text class="list-count">{{ tasks.length }} 个任务</text></view><button :disabled="loading" @tap="loadTasks">刷新</button></view>
 					<view v-if="tasks.length" class="task-list">
 						<button v-for="task in tasks" :key="task.dispatchNo" class="task-card" @tap="openTask(task.dispatchNo)">
 							<view class="task-head"><view class="task-code-row"><text class="business-code">{{ task.dispatchNo || '—' }}</text><text v-if="task.dispatchNo === recentTaskNo" class="recent-badge">上次作业</text></view><text class="status-badge">{{ statusLabel(task.status) }}</text></view>
 							<text class="task-meta">任务号 {{ task.taskNo || '—' }} · 车牌 {{ task.vehiclePlate || '—' }}</text>
-							<text class="task-enter">查看并开始拣货 ›</text>
+							<text class="task-enter">查看任务详情 ›</text>
 						</button>
 					</view>
 					<view v-else-if="!error" class="fulfillment-state"><text class="state-title">暂无排车拣货任务</text><text>可刷新列表，或直接扫描排车单号恢复作业。</text></view>