feat: 重构多轮RAG展示并完善报告协作、业务链审核与 agentfx 种子

抽出专用多轮RAG消息列表并升级会话模型；强化报告协作画布与检查器；业务链普通用户改为提交审核；扩展 agentfx 报告技能种子，并将含 admin 的用户名自动提权为管理员。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend-web/src/pages/ChatPage.tsx

@@ -70,7 +70,7 @@ import { clearResearchReportStream } from "@/core/threads/use-research-report-st
 import { resolveWritingModeReportPath } from "@/core/threads/writing-mode";
 import { queueLlmWikiConversationDeposit } from "@/core/llmwiki/conversation-deposit";
 import { useSingleRoundRagMessages } from "@/core/threads/use-single-round-rag";
-import { useMultiRoundRagMessages } from "@/core/threads/use-multi-round-rag";
+import { useMultiRoundRagMessages, mergeMessagesByTime, toLangGraphMessages } from "@/core/threads/use-multi-round-rag";
 import { useLayoutMode } from "@/core/system-settings/hooks";
 import { useRouteBase } from "@/core/route-base";
 import { textOfMessage } from "@/core/threads/utils";
@@ -332,19 +332,19 @@ export default function ChatPage() {
   const { displayThread: researchDisplayThread } = useResearchWritingFeed(threadId, thread);
   const displayThread = useMemo(() => {
     const base = researchDisplayThread;
+    const ragMessages = toLangGraphMessages(multiRoundRag.messages);
     if (
       singleRoundRag.messages.length === 0 &&
-      multiRoundRag.messages.length === 0 &&
+      ragMessages.length === 0 &&
       !singleRoundRag.isLoading &&
       !multiRoundRag.isLoading
     ) {
       return base;
     }
-    const messages = [
-      ...base.messages,
-      ...singleRoundRag.messages,
-      ...multiRoundRag.messages,
-    ];
+    const messages = mergeMessagesByTime(
+      [...base.messages, ...singleRoundRag.messages],
+      ragMessages,
+    );
     return {
       ...base,
       values: { ...base.values, messages },
@@ -355,9 +355,9 @@ export default function ChatPage() {
   }, [
     multiRoundRag.isLoading,
     multiRoundRag.messages,
+    researchDisplayThread,
     singleRoundRag.isLoading,
     singleRoundRag.messages,
-    researchDisplayThread,
   ]);
 
   const writingArtifactPath = useMemo(
@@ -876,7 +876,7 @@ export default function ChatPage() {
                       status={
                         thread.error
                           ? "error"
-                          : displayThread.isLoading
+                          : displayThread.isLoading || multiRoundRag.isLoading
                             ? "streaming"
                             : "ready"
                       }