fix：回滚路由逻辑

src/layouts/Navbar/Navbar.tsx

 import type React from 'react'
 import type React from 'react'
 import { motion } from 'framer-motion'
 import { motion } from 'framer-motion'
 import { useEffect, useRef, useState } from 'react'
 import { useEffect, useRef, useState } from 'react'
-import { useLocation, useNavigate } from 'react-router-dom'
+import { useNavigate } from 'react-router-dom'
 import { useClickAway, useSessionStorageState } from 'ahooks'
 import { useClickAway, useSessionStorageState } from 'ahooks'
 import styles from './Navbar.module.less'
 import styles from './Navbar.module.less'
 import { NavBarItem } from './components/NavBarItem'
 import { NavBarItem } from './components/NavBarItem'
@@ -21,7 +21,6 @@ interface NavbarProps {
 const NavbarBase: React.FC<NavbarProps & WithAuthProps> = ({ isHistoryVisible, checkAuth, onSetHistoryVisible }) => {
 const NavbarBase: React.FC<NavbarProps & WithAuthProps> = ({ isHistoryVisible, checkAuth, onSetHistoryVisible }) => {
   const dispatch = useAppDispatch()
   const dispatch = useAppDispatch()
   const navigate = useNavigate()
   const navigate = useNavigate()
-  const location = useLocation()
 
 
   const { currentConversationId, shouldNavigateToNewConversation, currentToolId } = useAppSelector(state => state.conversation)
   const { currentConversationId, shouldNavigateToNewConversation, currentToolId } = useAppSelector(state => state.conversation)
 
 
@@ -104,29 +103,11 @@ const NavbarBase: React.FC<NavbarProps & WithAuthProps> = ({ isHistoryVisible, c
 
 
   useEffect(() => {
   useEffect(() => {
     if (shouldNavigateToNewConversation && currentConversationId) {
     if (shouldNavigateToNewConversation && currentConversationId) {
-      // 获取当前 URL 的查询参数，保留除 'from' 之外的所有参数
-      const currentSearchParams = new URLSearchParams(location.search)
-      const paramsToKeep = new URLSearchParams()
-
-      // 遍历当前查询参数，过滤掉 'from' 参数
-      currentSearchParams.forEach((value, key) => {
-        if (key !== 'from') {
-          paramsToKeep.set(key, value)
-        }
-      })
-
-      // 如果当前有选中的 toolId，添加到查询参数中
-      if (currentToolId) {
-        paramsToKeep.set('toolId', currentToolId)
-      }
-
-      // 构建跳转 URL
-      const queryString = paramsToKeep.toString()
-      const url = queryString
-        ? `/chat/${currentConversationId}?${queryString}`
+      // 如果当前有选中的 toolId，在 URL 中拼接，以便刷新页面后保留工具选择
+      const url = currentToolId
+        ? `/chat/${currentConversationId}?toolId=${currentToolId}`
         : `/chat/${currentConversationId}`
         : `/chat/${currentConversationId}`
-
-      // 通过 location.state 传递 toolId，避免在 Chat 页面被误判为"外链残留参数"而强制清空
+      // 通过 location.state 传递 toolId，避免在 Chat 页面被误判为“外链残留参数”而强制清空
       navigate(url, {
       navigate(url, {
         state: {
         state: {
           toolId: currentToolId || null,
           toolId: currentToolId || null,
@@ -134,7 +115,7 @@ const NavbarBase: React.FC<NavbarProps & WithAuthProps> = ({ isHistoryVisible, c
       })
       })
       dispatch(clearNavigationFlag())
       dispatch(clearNavigationFlag())
     }
     }
-  }, [shouldNavigateToNewConversation, currentConversationId, currentToolId, navigate, dispatch, location.search])
+  }, [shouldNavigateToNewConversation, currentConversationId, currentToolId, navigate, dispatch])
 
 
   // keep latest conversation id in sessionStorage for cross-page returns (e.g., from collect)
   // keep latest conversation id in sessionStorage for cross-page returns (e.g., from collect)
   useEffect(() => {
   useEffect(() => {