Load current terminal session tail

platform_web/components/ServerManagementTerminalDrawer.tsx

@@ -102,6 +102,7 @@ export function ServerManagementTerminalDrawer({ open, serverId, serverName, plu
   const initialHistoryPendingRef = useRef(false);
   const liveSessionRef = useRef<string | null | undefined>(undefined);
   const historyRequestRef = useRef(0);
+  const liveTailLoadedRef = useRef(new Map<string, number>());
   const quickCommands = useMemo(() => terminalQuickCommandsForPlugin(pluginId), [pluginId]);
   const supportsCommands = quickCommands.length > 0;
 
@@ -124,6 +125,22 @@ export function ServerManagementTerminalDrawer({ open, serverId, serverName, plu
     });
   }, []);
 
+  const loadLiveStreamTail = useCallback((stream: LogStreamResponse) => {
+    const latestSeq = Number(stream.latestSeq);
+    if (!Number.isFinite(latestSeq) || latestSeq <= 0) return;
+    const loadedThrough = liveTailLoadedRef.current.get(stream.id) ?? 0;
+    if (loadedThrough >= latestSeq) return;
+    liveTailLoadedRef.current.set(stream.id, latestSeq);
+    void platformApiClient.queryLogStream({ logStreamId: stream.id, afterSeq: Math.max(0, latestSeq - terminalHistoryWindow), limit: terminalHistoryWindow }).then((response) => {
+      if (!eventBelongsToLiveSession(stream.logSessionId, liveSessionRef.current)) return;
+      appendLines(response.entries.map((entry) => terminalLineFromLog({ ...stream, latestSeq: response.latestSeq }, entry)));
+      lockTerminalFollow();
+    }).catch((error) => {
+      if (!eventBelongsToLiveSession(stream.logSessionId, liveSessionRef.current)) return;
+      appendLines([terminalSystemLine("warn", `当前会话尾部日志读取失败，等待后续实时输出：${error instanceof Error ? error.message : "未知错误"}`, "SYSTEM", `tail-error-${stream.id}`, serverTimeRef.current)]);
+    });
+  }, [appendLines, lockTerminalFollow]);
+
   useEffect(() => {
     if (!open) return;
     setStreams({ status: "loading" });
@@ -137,6 +154,7 @@ export function ServerManagementTerminalDrawer({ open, serverId, serverName, plu
     setHistoryLines({ status: "idle" });
     setSelectedHistoryStreamId("");
     liveSessionRef.current = undefined;
+    liveTailLoadedRef.current.clear();
     serverTimeRef.current = undefined;
     historyRequestRef.current += 1;
     initialHistoryPendingRef.current = true;
@@ -180,6 +198,7 @@ export function ServerManagementTerminalDrawer({ open, serverId, serverName, plu
       if (!stream || !eventBelongsToLiveSession(stream.logSessionId, liveSessionRef.current)) return;
       ready = true;
       setStreams((current) => ({ status: "ready", data: mergeLogStreams(current.status === "ready" ? current.data : [], stream) }));
+      loadLiveStreamTail(stream);
     });
     events.addEventListener("ready", () => {
       ready = true;
@@ -198,7 +217,7 @@ export function ServerManagementTerminalDrawer({ open, serverId, serverName, plu
       if (!ready) setStreams({ status: "error", reason: "实时日志推送连接失败" });
     };
     return () => events.close();
-  }, [appendLines, lockTerminalFollow, open, serverId]);
+  }, [appendLines, loadLiveStreamTail, lockTerminalFollow, open, serverId]);
 
   useEffect(() => {
     if (!open || !historyOpen) return;