feat(agent): 会话接续 - 首页创作带入画布原助手

web/src/pages/canvas/project.tsx

@@ -555,6 +555,21 @@ function InfiniteCanvasPage() {
         openAgent("local");
     }, [codexAutoConnect, codexCompactAgent, openAgent, projectLoaded, setAgentMode]);
 
+    useEffect(() => {
+        const sessionId = searchParams.get("conversation");
+        if (!projectLoaded || !sessionId) return;
+        if (!chatSessions.some((session) => session.id === sessionId)) {
+            message.warning("未找到要接续的会话，请从首页重新进入。");
+        } else {
+            activeChatIdRef.current = sessionId;
+            setActiveChatId(sessionId);
+            openAgent("online");
+        }
+        const next = new URLSearchParams(searchParams);
+        next.delete("conversation");
+        setSearchParams(next, { replace: true });
+    }, [projectLoaded, chatSessions, searchParams, setSearchParams, openAgent, message]);
+
     // 沉浸专注进入时收起智能体与小地图、重置 Dock 唤出态；仅响应「进入」瞬间，避免关闭专注内主动唤出的面板。
     const prevFocusModeRef = useRef(focusMode);
     useEffect(() => {