fix: 留言板层级修复 + 人名映射防降级

- 留言板移除 currentMode 限制，产品级功能所有模式可见
- .page-container: min-height + overflow-y:auto 替代 height:100vh + overflow:hidden
- loadUsers 加 console.error 日志 + $forceUpdate 防字典空窗期

track-uniapp/src/pages/scan/detail.vue

@@ -46,8 +46,8 @@
         :initialLockTaskId="autoLockTaskId"
         @action="handleTaskAction" @viewRecords="handleViewRecords" />
 
-      <!-- 💬 协同留言板 -->
-      <view v-if="currentMode === 'workspace'" class="message-board">
+      <!-- 💬 协同留言板 — 产品级功能，所有模式均可见 -->
+      <view class="message-board">
         <view class="mb-title">💬 协同留言板</view>
         <scroll-view scroll-y class="mb-scroll-area" :scroll-into-view="bottomMsgId" scroll-with-animation>
           <view v-for="msg in messages" :key="msg.id" class="mb-item" :id="'msg-' + msg.id">
@@ -256,7 +256,7 @@ export default {
     openEditProduct() { this.editForm = { order_no: this.product.order_no || "", external_serial: this.product.external_serial || "" }; this.editProductVisible = true; },
     async doEditProduct() { this.editSaving = true; try { this.product = await patch(`/products/${this.product.id}`, { order_no: this.editForm.order_no.trim(), external_serial: this.editForm.external_serial.trim() }); uni.showToast({ title: "已保存", icon: "success" }); this.editProductVisible = false; } catch {} finally { this.editSaving = false; } },
 
-    async loadUsers() { try { const res = await get("/users/", { limit: 200, dept: "IRIS" }); this.users = (res || []).filter(u => u.department === "IRIS"); this.userOptions = this.users.map(u => ({ id: u.username || u.id, name: u.full_name || u.username })); setUserNameMap(this.users); } catch {} },
+    async loadUsers() { try { const res = await get("/users/", { limit: 200, dept: "IRIS" }); this.users = (res || []).filter(u => u.department === "IRIS"); this.userOptions = this.users.map(u => ({ id: u.username || u.id, name: u.full_name || u.username })); setUserNameMap(this.users); this.$forceUpdate(); } catch (e) { console.error('[loadUsers] 获取用户列表失败:', e); } },
     loadCurrentUser() { try { let user = uni.getStorageSync("user"); if (typeof user === "string" && user) { try { user = JSON.parse(user); } catch (e) { user = null; } } if (user && typeof user === "object") { this.currentUser = user; this.currentUserId = String(user.id || ""); this.currentUsername = user.username || ""; } } catch {} },
 
     onTaskNameChange(e) { const idx = e.detail.value; this.firstForm.taskNameIdx = idx; this.firstForm.task_name = TASK_NAME_OPTIONS[idx]; },
@@ -310,7 +310,7 @@ export default {
 </script>
 
 <style scoped>
-.page-container { height: 100vh; display: flex; flex-direction: column; background-color: #f3f4f6; box-sizing: border-box; padding: 16px; padding-bottom: 0; overflow: hidden; }
+.page-container { min-height: 100vh; display: flex; flex-direction: column; background-color: #f3f4f6; box-sizing: border-box; padding: 16px; padding-bottom: 24px; overflow-y: auto; }
 .loading { text-align: center; padding: 48px 0; color: #6b7280; }
 .error-box { padding: 12px; border-radius: 10px; background: #fef2f2; color: #dc2626; font-size: 13px; border: 1px solid #fecaca; }
 .overall-bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: #fff; border-radius: 12px; margin-bottom: 12px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); }