fix(chat): recover active requests and preserve finish order

src/hooks/useTKMindChat.ts

@@ -1618,7 +1618,7 @@ export function useTKMindChat(
         if (
           activeSessionId &&
           err instanceof ApiError &&
-          shouldKeepStreamingAfterRunError(err.status)
+          shouldKeepStreamingAfterRunError(err.status, err.message, err.code)
         ) {
           subscribeToSession(activeSessionId);
           setChatState('streaming');
@@ -1626,6 +1626,23 @@ export function useTKMindChat(
           scheduleReplyRecoverySync(activeSessionId, submitToken);
           return;
         }
+        if (
+          activeSessionId &&
+          shouldKeepStreamingAfterRunError(
+            undefined,
+            err instanceof Error ? err.message : String(err),
+            err instanceof ApiError ? err.code : '',
+          )
+        ) {
+          // Goose may report its session concurrency guard as a failed run
+          // message instead of an HTTP 409. Reattach to the session stream
+          // and reconcile the snapshot; do not strand the composer in error.
+          subscribeToSession(activeSessionId);
+          setChatState('streaming');
+          setError(null);
+          scheduleReplyRecoverySync(activeSessionId, submitToken);
+          return;
+        }
         if (session && activeSessionId) setSessions((prev) => touchSession(prev, activeSessionId!, -1));
         if (err instanceof ApiError && err.status === 402) {
           notifyInsufficientBalance();