fix: allow repeated platform checks and unify Alpha metric formatting

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 && (