feat: add v2 task control and asynchronous isolated workers

web/app.js

@@ -1821,7 +1821,7 @@ async function copyText(t) {
 function syncSend() {
   const v = $('input').value;
   /* commands also work while a turn runs (/stop, /help, …) */
-  $('btn-send').disabled = (busy && !v.startsWith('/')) || !v.trim();
+  $('btn-send').disabled = !v.trim();
 }
 async function compact() {
   $('status').textContent = '压缩中…';
@@ -1909,7 +1909,15 @@ async function send(text) {
       return;
     }
   }
-  if (busy) return;
+  if (busy) {
+    try {
+      await post('api/task', { message: body });
+      if (text === undefined) input.value = '';
+      autoGrow(); syncSend();
+      $('status').textContent = '正在应用最新指令，已停止冲突的待执行操作';
+    } catch (e) { toastErr(e); }
+    return;
+  }
   if (text === undefined) input.value = '';
   autoGrow();
   syncSend();
@@ -2119,6 +2127,7 @@ const COMMANDS = [
   { name: 'skills', desc: '查看可用的 skills', run: () => showExtensions('skills') },
   { name: 'extensions', aliases: ['mcp', 'plugins', 'agents'], desc: 'MCP、插件、skills、子代理；信任工作区',
     run: (a, name) => showExtensions(name === 'extensions' ? undefined : name) },
+  { name: 'task', aliases: ['jobs'], desc: '当前目标、执行控制和异步作业', run: showTaskBoard },
   { name: 'thinking', args: '[on|off]', desc: '思考过程默认展开/收起（会记住）', complete: ON_OFF, run: setThinking },
   { name: 'details', args: '[on|off]', desc: '工具输出全部展开/收起（会记住）', complete: ON_OFF, run: setDetails },
   { name: 'theme', desc: '切换深色/浅色', run: toggleTheme },
@@ -2321,6 +2330,52 @@ function reportZh(r) {
     .replace(/(\d+) MCP servers?/, '$1 个 MCP 服务器')
     .replace(/untrusted workspace: \/plugins trust/, '工作区未信任，它自带的插件和 MCP 没有加载');
 }
+async function showTaskBoard() {
+  const box = el('div');
+  box.appendChild(el('h3', null, '任务控制 / 异步作业'));
+  const status = el('p', 'muted tiny'); box.appendChild(status);
+  const controls = el('div', 'buttons left'); box.appendChild(controls);
+  const jobs = el('div'); box.appendChild(jobs);
+  const message = el('textarea'); message.placeholder = '执行中直接补充或纠正指令'; message.rows = 3; message.style.width = '100%'; box.appendChild(message);
+  box.appendChild(Object.assign(el('button', null, '立即应用指令'), { onclick: async () => {
+    if (!message.value.trim()) return;
+    try { await post('api/task', { message: message.value }); message.value = ''; } catch (e) { toastErr(e); }
+  } }));
+  const delta = el('pre'); delta.style.whiteSpace = 'pre-wrap'; box.appendChild(delta);
+  let updating = false;
+  const update = async () => {
+    if (updating || !box.isConnected) return;
+    updating = true;
+    try {
+      const state = await getJSON('api/task');
+      status.textContent = '版本 ' + state.revision + ' · ' + state.status + ' · ' + (state.cancel_source || '') + '\n' + (state.goal || '');
+      controls.textContent = '';
+      const control = (label, body) => controls.appendChild(Object.assign(el('button', null, label), { onclick: async () => { try { await post('api/task', body); await update(); } catch (e) { toastErr(e); } } }));
+      control(state.read_only ? '允许修改' : '只查看', { read_only: !state.read_only });
+      control(state.delegation ? '主 agent 亲自执行' : '允许委派', { delegation: !state.delegation });
+      control(state.paused ? '恢复' : '暂停', { paused: !state.paused });
+      jobs.textContent = '';
+      for (const job of state.jobs || []) {
+        const row = el('div', 'ext-row');
+        row.appendChild(el('h4', null, job.job_id + ' · ' + job.kind + ' · ' + job.status));
+        row.appendChild(el('p', 'muted tiny', (job.cancel_source || '') + ' · ' + (job.resource || '')));
+        row.appendChild(el('pre', null, (job.output || '').slice(-3000)));
+        if (['running', 'queued', 'running_protected'].includes(job.status)) row.appendChild(Object.assign(el('button', 'danger', job.status === 'running_protected' ? '强制停止当前操作' : '取消'), {
+          onclick: async () => { try { await post('api/jobs/cancel', { job_id: job.job_id, force: job.status === 'running_protected' }); } catch (e) { toastErr(e); } },
+        }));
+        if ((job.resource || '').includes('/.agent/v2/wt-')) {
+          for (const integrate of [false, true]) row.appendChild(Object.assign(el('button', null, integrate ? '集成修改' : '预览修改'), {
+            onclick: async () => { try { const r = await post('api/worktree', { worktree: job.resource, integrate }); delta.textContent = r.output; } catch (e) { toastErr(e); } },
+          }));
+        }
+        jobs.appendChild(row);
+      }
+    } catch (e) { status.textContent = errMsg(e); } finally { updating = false; }
+  };
+  openModal(box, true); await update();
+  const timer = setInterval(() => { if (!box.isConnected) clearInterval(timer); else update(); }, 500);
+}
+
 async function showExtensions(focus) {
   let d;
   try { d = extCache = await getJSON('api/extensions'); }
@@ -2342,6 +2397,7 @@ async function showExtensions(focus) {
       ? '这个工作区已信任：它的 .agent/plugins 和 .agent/mcp.json 会加载。'
       : '这个工作区未信任：它的 .agent/plugins 和 .agent/mcp.json 不会加载（配置目录里的照常加载）。')));
   const acts = el('div', 'buttons left');
+  acts.appendChild(Object.assign(el('button', null, '任务控制与作业'), { onclick: showTaskBoard }));
   acts.appendChild(Object.assign(el('button', null, '模型与 worker 配置'), {
     onclick: async () => {
       try {