修复首次会话等待与上游饱和重试

src/pages/Chat/OpencodeChatPanel.tsx

@@ -1355,7 +1355,12 @@ export function OpencodeChatPanel({ variant = 'main', navigationDraft, onOpenDev
   }, [authenticationFailureKey, logout]);
 
   useEffect(() => {
-    if (!selectedSessionId || sessionMessages.length > 0 || selectedSessionRunning) return;
+    if (
+      !selectedSessionId
+      || sessionMessages.length > 0
+      || Object.prototype.hasOwnProperty.call(sessionMessagesBySessionId, selectedSessionId)
+      || selectedSessionRunning
+    ) return;
     if (!activeProject || status.state !== 'running') return;
     void loadSessionMessages(selectedSessionId).catch(() => undefined);
   }, [
@@ -1364,6 +1369,7 @@ export function OpencodeChatPanel({ variant = 'main', navigationDraft, onOpenDev
     selectedSessionId,
     selectedSessionRunning,
     sessionMessages.length,
+    sessionMessagesBySessionId,
     status.state,
   ]);
 
@@ -1718,7 +1724,7 @@ export function OpencodeChatPanel({ variant = 'main', navigationDraft, onOpenDev
         const createdSessionId = getSessionId(session);
         if (!createdSessionId) throw new Error('运行时未返回会话 ID');
         await linkProjectSession(activeProject.id, createdSessionId, submissionAgent.id);
-        await selectSession(createdSessionId);
+        await selectSession(createdSessionId, { loadMessages: false });
         submissionSession = {
           id: createdSessionId,
           generation: submissionSession.generation + 1,