Show full datetime (Y-M-D H:M:S) in task list and detail

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

web/index.html

@@ -908,7 +908,7 @@ async function loadTasks() {
 }
 
 function renderTasks() {
-  const tasks = Object.values(S.tasks).sort((a,b) => (b.created_at||0) - (a.created_at||0));
+  const tasks = Object.values(S.tasks).sort((a,b) => (b.created_at||0) - (a.created_at||0));  // 最新在最上
   document.getElementById('taskCount').textContent = `${tasks.length} 个任务`;
 
   const body = document.getElementById('taskBody');
@@ -922,7 +922,7 @@ function renderTasks() {
     const { cls, label } = taskStatus(t);
     const name = urlName(t.url);
     const src = t.platform_task_id ? `<span class="badge neutral">平台 #${t.platform_task_id}</span>` : '<span class="badge neutral">手动</span>';
-    const fmtTime = ts => ts ? new Date(ts*1000).toLocaleTimeString('zh-CN', {hour:'2-digit',minute:'2-digit',second:'2-digit'}) : '-';
+    const fmtTime = ts => ts ? new Date(ts*1000).toLocaleString('zh-CN', {year:'numeric',month:'2-digit',day:'2-digit',hour:'2-digit',minute:'2-digit',second:'2-digit'}) : '-';
     const fmtDur = t => {
       if (!t.started_at) return '-';
       const end = t.completed_at || (Date.now()/1000);
@@ -1008,7 +1008,7 @@ function openDetail(id) {
   el.innerHTML = `<span class="bdot"></span>${label}`;
 
   // 与列表完全一致的格式函数
-  const fmtTime = ts => ts ? new Date(ts*1000).toLocaleTimeString('zh-CN', {hour:'2-digit',minute:'2-digit',second:'2-digit'}) : '-';
+  const fmtTime = ts => ts ? new Date(ts*1000).toLocaleString('zh-CN', {year:'numeric',month:'2-digit',day:'2-digit',hour:'2-digit',minute:'2-digit',second:'2-digit'}) : '-';
   const fmtDur = () => {
     if (!t.started_at) return '-';
     const end = t.completed_at || (Date.now()/1000);