feat: 事件异常等待字段与小数超时小时

Co-authored-by: Cursor <cursoragent@cursor.com>

inquiry-backend/src/views/inquiry/systemSetting/index.vue

@@ -82,14 +82,14 @@ async function loadList() {
 onMounted(() => loadList());
 
 function onHoursInput(id, raw) {
-  const n = Math.floor(Number(raw));
+  const n = Number(raw);
   draftHours.value[id] = Number.isFinite(n) && n >= 0 ? n : 0;
 }
 
 async function commitHours(row) {
   const hours = draftHours.value[row.id];
   if (hours == null || !Number.isFinite(hours) || hours < 0) {
-    message.warning('超时小时须为 ≥0 的整数');
+    message.warning('超时小时须为 ≥0 的数字，支持小数');
     draftHours.value[row.id] = row.timeoutHours;
     return;
   }
@@ -113,7 +113,7 @@ async function commitHours(row) {
 <template>
   <div class="sys-setting-page">
     <div class="toolbar-bar">
-      <span class="hint">固定规则，仅可改超时小时；编码唯一只读，供智能体调用；失焦或回车保存</span>
+      <span class="hint">固定规则，仅可改超时小时（支持小数，0=不监测）；编码唯一只读，供智能体调用；失焦或回车保存</span>
     </div>
 
     <div v-if="loading" style="padding: 24px; color: #94a3b8">加载中…</div>
@@ -151,7 +151,7 @@ async function commitHours(row) {
                       class="field hours-input"
                       type="number"
                       min="0"
-                      step="1"
+                      step="0.01"
                       :value="draftHours[row.id]"
                       :disabled="savingId === row.id"
                       @input="onHoursInput(row.id, $event.target.value)"