feat: 命令台云端环境——选、建、管 + 任务绑定环境

环境是项目仓库的命名基准检出（项目 + 仓库快照 + 分支 + 执行器），
不是官方 Codex 云端环境（无公开调用口，不宣称能建它）。
- DB：environments 表（creating/ready/failed/archived，部分唯一索引
  保证同项目未归档名唯一、归档名可重用）+ tasks.environment_id，
  server/worker/db 三处迁移同步（含 #67 的 goal_mode，不丢新语义）。
- API：POST/GET /environments、GET /environments/{id}、
  POST /environments/{id}/archive；任务创建选环境须本项目已 ready、
  执行器一致或继承、cloud 执行器拒绝。
- Worker：run_all 每轮开头准备 creating 环境（真实 git clone +
  checkout 分支，幂等、无 preparing 卡死态，准备期归档 CAS 不覆盖）；
  环境任务派发时 task[repo] 指到环境检出（租户 Docker 容器内路径 +
  envs 整目录挂载），任务仍一任务一 worktree。
- Console：环境卡（列表/新建/归档，未 ready 置灰）+ 新建任务环境下拉
  + 任务列表 [环境] 标记；公网 nginx 须同批代理 /environments。
- 单测：新增 test_task_environments.py 14 个；本地实弹（真实 git
  clone octocat/Hello-World，不跑模型）项目→环境→任务→归档全通。

cloud/console.html

@@ -118,9 +118,30 @@
 </div>
 </div>
 
+<section class="card">
+<h2>环境 <span class="muted">（选、建、管：当前项目的基准检出）</span></h2>
+<div class="bar">
+  <button id="refreshEnvironments">刷新</button>
+  <span id="envCount" class="muted"></span>
+</div>
+<div id="envList" class="muted">先选项目</div>
+<div class="bar">
+  <input id="newEnvName" type="text" placeholder="新环境名">
+  <input id="newEnvBranch" type="text" placeholder="分支（可选，空=默认分支）">
+  <select id="newEnvExecutor">
+    <option value="">执行器：不限</option>
+    <option value="local">local</option>
+    <option value="docker">docker</option>
+  </select>
+  <button id="createEnvironment">新建环境</button>
+</div>
+<span id="envMsg" class="muted"></span>
+</section>
+
 <section class="card">
 <h2>新建任务</h2>
 <div class="bar">
+  <select id="envSelect"><option value="">环境：不指定（走项目仓库）</option></select>
   <select id="executor">
     <option value="">executor：任意 worker</option>
     <option value="local">local</option>
@@ -300,6 +321,51 @@ async function loadWorkers() {
   } catch (e) { $("#workers").textContent = "加载失败：" + e.message; }
 }
 
+async function loadEnvironments() {
+  var pid = $("#projectSelect").value;
+  var sel = $("#envSelect");
+  var cur = sel.value;
+  if (!pid) {
+    $("#envList").textContent = "先选项目";
+    $("#envCount").textContent = "";
+    sel.innerHTML = "<option value=''>环境：不指定（走项目仓库）</option>";
+    return;
+  }
+  try {
+    var d = await api("/environments?project_id=" + encodeURIComponent(pid), "GET");
+    var envs = d.environments || [];
+    $("#envCount").textContent = envs.length + " 个环境";
+    if (!envs.length) { $("#envList").textContent = "该项目暂无环境（先建一个，或不指定环境直接建任务）"; }
+    else {
+      $("#envList").innerHTML = envs.map(function (e) {
+        var btn = e.status === "archived" ? "" : " <button data-env-archive='" + esc(e.id) + "'>归档</button>";
+        var err = e.status === "failed" && e.error_text ? " / 失败原因：" + esc(e.error_text) : "";
+        return esc(e.name) + "（" + esc(shortId(e.id)) + "） / 分支 " + esc(e.branch || "默认分支") +
+          " / 执行器 " + esc(e.executor || "不限") + " / 状态 " + esc(e.status) + err + btn + "<br>";
+      }).join("");
+      Array.prototype.forEach.call(document.querySelectorAll("[data-env-archive]"), function (b) {
+        b.onclick = async function () {
+          if (!confirm("确定归档该环境吗？归档后新任务不能再选它，进行中的任务不受影响（有进行中任务在用它时归档会被拒绝）。")) return;
+          try { await api("/environments/" + encodeURIComponent(b.getAttribute("data-env-archive")) + "/archive", "POST", {}); loadEnvironments(); }
+          catch (e) { $("#envMsg").innerHTML = "<span class='err'>归档失败：" + esc(e.message) + "</span>"; }
+        };
+      });
+    }
+    // 任务创建的环境下拉：只列未归档环境，未 ready 的置灰（creating
+    // 时可看到它在准备，ready 后才能选）；刷新时尽量保留已选值。
+    sel.innerHTML = "<option value=''>环境：不指定（走项目仓库）</option>";
+    envs.forEach(function (e) {
+      var o = document.createElement("option");
+      o.value = e.id; o.textContent = e.name + "（" + e.status + "）";
+      if (e.status !== "ready") o.disabled = true;
+      sel.appendChild(o);
+    });
+    if (cur && Array.prototype.some.call(sel.options, function (o) { return o.value === cur && !o.disabled; })) sel.value = cur;
+  } catch (e) {
+    $("#envList").innerHTML = "<span class='err'>加载失败：" + esc(e.message) + "</span>";
+  }
+}
+
 async function loadTasks() {
   var pid = $("#projectSelect").value;
   if (!pid) { $("#taskRows").innerHTML = "<tr><td colspan='7' class='muted'>先选项目</td></tr>"; return; }
@@ -312,7 +378,7 @@ async function loadTasks() {
       var pr = t.pr_url ? "<a href='" + esc(t.pr_url) + "' target='_blank' rel='noopener'>#" + esc(t.pr_number) + "</a>" : "";
       return "<tr data-id='" + esc(t.id) + "' class='" + (currentTask && currentTask.id === t.id ? "selected" : "") + "'>" +
         "<td>" + esc(shortId(t.id)) + "</td>" +
-        "<td>" + (t.plan ? "[计划] " : "") + (t.forked_from ? "[分支] " : "") + ((t.goal_mode || t.verify_command) ? "[目标] " : "") + esc(String(t.prompt || "").slice(0, 60)) + "</td>" +
+        "<td>" + (t.plan ? "[计划] " : "") + (t.forked_from ? "[分支] " : "") + ((t.goal_mode || t.verify_command) ? "[目标] " : "") + (t.environment_id ? "[环境 " + esc(shortId(t.environment_id)) + "] " : "") + esc(String(t.prompt || "").slice(0, 60)) + "</td>" +
         "<td class='st-" + esc(t.status) + "'>" + esc(t.status) + "</td>" +
         "<td>" + esc(t.executor || "") + "</td>" +
         "<td>" + esc(t.worktree_host || "") + "</td>" +
@@ -507,7 +573,7 @@ $("#saveKey").onclick = function () {
   loadHealth();
   loadProjects();
   loadWorkers();
-  if ($("#projectSelect").value) loadTasks();
+  if ($("#projectSelect").value) { loadTasks(); loadEnvironments(); }
   if (getKey()) loadRelayModels();
 };
 $("#clearKey").onclick = function () { localStorage.removeItem(KEY_STORE); setKeyState(); };
@@ -515,7 +581,8 @@ $("#refreshHealth").onclick = loadHealth;
 $("#refreshProjects").onclick = loadProjects;
 $("#refreshWorkers").onclick = loadWorkers;
 $("#refreshTasks").onclick = loadTasks;
-$("#projectSelect").onchange = loadTasks;
+$("#refreshEnvironments").onclick = loadEnvironments;
+$("#projectSelect").onchange = function () { loadTasks(); loadEnvironments(); };
 $("#goalMode").onchange = function () { $("#goalHint").style.display = this.checked ? "block" : "none"; };
 $("#createProject").onclick = async function () {
   var name = $("#newProjectName").value.trim();
@@ -530,12 +597,31 @@ $("#createProject").onclick = async function () {
     loadProjects();
   } catch (e) { $("#projectMsg").innerHTML = "<span class='err'>新建失败：" + esc(e.message) + "</span>"; }
 };
+$("#createEnvironment").onclick = async function () {
+  var pid = $("#projectSelect").value;
+  var name = $("#newEnvName").value.trim();
+  if (!pid) { $("#envMsg").textContent = "先选项目"; return; }
+  if (!name) { $("#envMsg").textContent = "环境名必填"; return; }
+  var body = { project_id: pid, name: name };
+  var br = $("#newEnvBranch").value.trim();
+  if (br) body.branch = br;
+  var ex = $("#newEnvExecutor").value;
+  if (ex) body.executor = ex;
+  try {
+    await api("/environments", "POST", body);
+    $("#envMsg").innerHTML = "<span class='ok'>环境已建，worker 准备中（creating → ready，失败会在列表里写原因）</span>";
+    $("#newEnvName").value = ""; $("#newEnvBranch").value = "";
+    loadEnvironments();
+  } catch (e) { $("#envMsg").innerHTML = "<span class='err'>新建失败：" + esc(e.message) + "</span>"; }
+};
 $("#createTask").onclick = async function () {
   var pid = $("#projectSelect").value;
   var prompt = $("#prompt").value.trim();
   if (!pid) { $("#taskMsg").textContent = "先选项目"; return; }
   if (!prompt) { $("#taskMsg").textContent = "prompt 必填"; return; }
   var body = { project_id: pid, prompt: prompt };
+  var envId = $("#envSelect").value;
+  if (envId) body.environment_id = envId;
   var ex = $("#executor").value;
   if (ex) body.executor = ex;
   var model = $("#modelCustom").value.trim() || $("#modelSelect").value;
@@ -602,7 +688,7 @@ loadWorkers();
 // 否则下拉永远只有默认项（此前只在点“保存”时调一次，
 // 2026-10-27 实测：存过 key 后重开页面模型选不了）。
 if (getKey()) loadRelayModels();
-setInterval(function () { if ($("#projectSelect").value) loadTasks(); loadHealth(); }, 10000);
+setInterval(function () { if ($("#projectSelect").value) { loadTasks(); loadEnvironments(); } loadHealth(); }, 10000);
 </script>
 </body>
 </html>