console: add goal-mode invincible option

DispatchSection gains a 'goal 模式无敌版' checkbox next to 'goal 模式':
checking it sends goal_mode=1 plus no_time_limit=1 (server already
accepts the field; the console just never exposed it). Plain goal
checkbox behavior is unchanged; invincible wins when both are
checked. Plan/coordinator mutual exclusion now covers invincible
too (it is a goal variant). TaskDetailPanel shows
'goal 模式无敌版（不限时）' when a task carries no_time_limit.
Help text states the honest boundary: worker/docker total timeouts
are lifted, the 600s single-turn host guard stays. Built with
npm run build (tsc+vite pass); console.html synced verbatim from
dist/index.html.

cloud/console-react/src/sections/TaskDetailPanel.tsx

@@ -25,7 +25,7 @@ export default function TaskDetailPanel() {
         <br />更新 {fmt(t.updated_at)}
         {t.plan ? <><br />计划模式（只读）</> : null}
         {t.forked_from ? <><br />分支自 {shortId(t.forked_from)}</> : null}
-        {t.goal_mode ? <><br />goal 模式（不限轮次，模型宣告完成）</> : t.verify_command ? <><br />goal 模式（旧语义，验收命令）</> : null}
+        {t.goal_mode ? <><br />{t.no_time_limit ? "goal 模式无敌版（不限时）" : "goal 模式（不限轮次，模型宣告完成）"}</> : t.verify_command ? <><br />goal 模式（旧语义，验收命令）</> : null}
         {t.coordinator_parts ? <><br />协调员：{t.coordinator_parts.length} 个子任务（{t.coordinator_parts.map((p) => p.name).join("、")}）</> : null}
         {t.parent_task_id ? <><br />协调子任务，父任务 {shortId(t.parent_task_id)}{t.coordinator_part ? "（" + t.coordinator_part + "）" : ""}</> : null}
         {(t.attachments && t.attachments.length) ? <><br />附件：{t.attachments.join("、")}</> : null}