fix: allow repeated platform checks and unify Alpha metric formatting

frontend/src/alphaMetrics.ts

@@ -0,0 +1,12 @@
+/** Format the five headline Alpha metrics for display; stored/filter values stay raw.
+ * Unsupported fields return undefined so callers can retain their existing format.
+ */
+export function formatAlphaMetric(
+  key: string,
+  value: unknown,
+): string | undefined {
+  const percent = key === "turnover" || key === "returns" || key === "drawdown";
+  if (!percent && key !== "sharpe" && key !== "fitness") return undefined;
+  if (typeof value !== "number" || !Number.isFinite(value)) return "—";
+  return percent ? `${(value * 100).toFixed(2)}%` : value.toFixed(2);
+}

frontend/src/components/AlphaDetail.tsx

@@ -1,4 +1,5 @@
 import { useEffect, useRef, useState } from "react";
+import { formatAlphaMetric } from "../alphaMetrics";
 import {
   Banner,
   Button,
@@ -464,7 +465,10 @@ function MetricTable({
       <h3>{title}</h3>
       {entries.length ? (
         <DetailFieldGrid
-          data={entries.map(([key, value]) => ({ key, value }))}
+          data={entries.map(([key, value]) => ({
+            key,
+            value: formatAlphaMetric(key, value) ?? value,
+          }))}
         />
       ) : (
         <p className="muted">未提供</p>

frontend/src/components/SubmissionPanel.tsx

@@ -34,6 +34,7 @@ export function SubmissionPanel({
   const [busy, setBusy] = useState("");
   const [error, setError] = useState("");
   const dirty = useRef(false);
+  const submittedJob = useRef<string | null>(null);
   const mounted = useRef(true);
   useEffect(() => {
     mounted.current = true;
@@ -47,6 +48,16 @@ export function SubmissionPanel({
       .then((value) => {
         if (!active) return;
         setData(value);
+        // Rebase only our completed writeback and its exact resulting snapshot.
+        // A different expression/settings/description must still require review.
+        if (
+          value.job?.id === submittedJob.current &&
+          value.job?.status === "completed" &&
+          value.job.checkpoint.review_snapshot === value.snapshot
+        ) {
+          setSnapshot(value.snapshot);
+          submittedJob.current = null;
+        }
         if (!dirty.current) {
           setDraft(value.descriptions);
           setSnapshot(value.snapshot);
@@ -89,6 +100,7 @@ export function SubmissionPanel({
       if (!mounted.current) return;
       // Keep the reviewed draft visible while the durable task runs.
       dirty.current = true;
+      submittedJob.current = job.id;
       setData((current) => (current ? { ...current, job } : current));
       onTask();
     } catch (e) {
@@ -105,14 +117,14 @@ export function SubmissionPanel({
     <div className="detail-section">
       <h3>Description 与提交检查</h3>
       <p className="muted">
-        AI 一次生成完整 Description，可在下方统一修改。写回并检查会更新 BRAIN 的
+        AI 一次生成完整 Description，可在下方统一修改。平台检查会更新 BRAIN 的
         Description，随后获取平台提交检查结果，不会正式提交 Alpha。
       </p>
       {error && <Banner type="danger" description={error} />}
       {!data.can_check && (
         <Banner
           type="info"
-          description="写回并检查需要待提交 Alpha。有本地比较基准时，需取得有效、完整且低于阈值的自相关结果；没有本地基准时可直接继续平台检查。"
+          description="平台检查需要待提交 Alpha。有本地比较基准时，需取得有效、完整且低于阈值的自相关结果；没有本地基准时可直接继续平台检查。"
         />
       )}
       {!data.can_generate && (
@@ -121,6 +133,17 @@ export function SubmissionPanel({
         </p>
       )}
       <div className="inline-actions">
+        <Button
+          disabled={!!busy || running}
+          onClick={() => {
+            dirty.current = false;
+            setDraft(data.descriptions);
+            setSnapshot(data.snapshot);
+            setError("");
+          }}
+        >
+          载入最新描述
+        </Button>
         <Button
           onClick={() => void generate()}
           loading={busy === "generate"}
@@ -181,18 +204,7 @@ export function SubmissionPanel({
           disabled={!!busy || running || conflict || !data.can_check}
           onClick={() => void check()}
         >
-          写回 Description 并检查
-        </Button>
-        <Button
-          disabled={!!busy || running}
-          onClick={() => {
-            dirty.current = false;
-            setDraft(data.descriptions);
-            setSnapshot(data.snapshot);
-            setError("");
-          }}
-        >
-          载入最新描述
+          平台检查
         </Button>
       </div>
       {data.job && (

frontend/src/pages/AlphaPage.tsx

@@ -27,6 +27,7 @@ import {
   IconRefresh,
 } from "@douyinfe/semi-icons";
 import "./AlphaPage.css";
+import { formatAlphaMetric } from "../alphaMetrics";
 import type { ColumnProps } from "@douyinfe/semi-ui-19/lib/es/table/interface";
 import {
   api,
@@ -84,8 +85,10 @@ function metricColor(key: string, value: unknown): string | undefined {
   return "var(--semi-color-danger)";
 }
 
-/** Convert Margin only for display; filtering and sorting still use raw values. */
+/** Format metrics only for display; filtering and sorting still use raw values. */
 function formatMetric(key: string, value: unknown): string {
+  const headline = formatAlphaMetric(key, value);
+  if (headline !== undefined) return headline;
   if (key !== "margin") return formatNumber(value, 3);
   return typeof value === "number" && Number.isFinite(value)
     ? `${formatNumber(value * 10000, 2)}bps`

frontend/src/types.ts

@@ -138,6 +138,7 @@ export type Job = {
     alpha_ids?: string[];
   };
   checkpoint: {
+    review_snapshot?: string;
     date?: string;
     dataset_id?: string;
     datasets_completed?: number;