feat: add durable WorldQuant backtests with UI and AI confirmation

frontend/src/ai/ChatPanel.tsx

@@ -18,6 +18,7 @@ import {
   post,
   stateLabels,
 } from "../api";
+import { BacktestToolCard } from "../backtests/BacktestToolCard";
 import { PnlChart } from "../components/PnlChart";
 import type { Alpha, Job, Pnl, Research } from "../types";
 import { chatTransport } from "./transport";
@@ -85,6 +86,8 @@ export function ChatPanel({
             "create_sync_job",
             "cancel_job",
             "retry_job",
+            "start_backtest",
+            "control_backtest",
           ].includes(call.name) &&
           !seenWrites.current.has(call.id)
         ) {
@@ -434,9 +437,11 @@ export function ChatPanel({
       </div>
       <footer className="ai-composer" ref={input}>
         <div className="ai-context">
-          {context.page === "account"
-            ? "上下文：个人信息页"
-            : `上下文：${context.alpha_id ? `Alpha ${context.alpha_id}` : "Alpha 列表"}${context.selected_ids?.length ? ` · 已选 ${context.selected_ids.length} 条` : ""}`}
+          {context.page === "backtests"
+            ? "上下文：回测研究"
+            : context.page === "account"
+              ? "上下文：个人信息页"
+              : `上下文：${context.alpha_id ? `Alpha ${context.alpha_id}` : "Alpha 列表"}${context.selected_ids?.length ? ` · 已选 ${context.selected_ids.length} 条` : ""}`}
         </div>
         <TextArea
           aria-label="发送给研究助手"
@@ -537,6 +542,9 @@ function BusinessCard({
           {labels[call.status] ?? call.status}
         </Tag>
       </div>
+      {call.name.includes("backtest") && (
+        <BacktestToolCard call={call} onAction={onAction} />
+      )}
       {call.preview.targets?.map((target) => (
         <details
           key={target.alpha_id}