添加MCP客户端超时配置和连接管理改进

添加了MCP客户端的超时配置功能，包括启动超时和工具调用超时参数。
改进了HTTP客户端和标准IO客户端的超时处理机制，确保请求在指定时间内完成或取消。
增加了对MCP服务器数量的限制，防止配置过多服务器导致系统不稳定。
增强了错误处理机制，当连接异常时能够正确清理资源并移除桥接主机。
添加了对大型MCP消息的大小验证，防止过大的请求导致系统问题。
优化了密钥更改后的处理流程，确保在修改密钥时停用服务器并要求重新测试。

frontend/src/features/mcp/McpServersView.spec.ts

@@ -81,4 +81,15 @@ describe('McpServersView', () => {
     expect(confirm).toHaveBeenCalled()
     expect(service.deleteMcpServer).toHaveBeenCalledWith('server-1')
   })
+
+  it('confirms permission changes before updating an existing server', async () => {
+    const wrapper = await render([server])
+    vi.mocked(service.updateMcpServer).mockResolvedValue(server)
+    await wrapper.findAll('button').find(button => button.text().includes('编辑'))!.trigger('click')
+    await wrapper.get('input[placeholder="network.request, notes.read"]').setValue('notes.read')
+    await wrapper.get('form').trigger('submit')
+    await flushPromises()
+    expect(confirm).toHaveBeenCalledWith(expect.stringContaining('旧测试与授权会失效'))
+    expect(service.updateMcpServer).toHaveBeenCalled()
+  })
 })

frontend/src/features/mcp/McpServersView.vue

@@ -142,7 +142,20 @@ async function save() {
 }
 
 function executionChanged(server: McpServer, input: McpServerInput) {
-  return JSON.stringify([server.transport, server.command, server.args, server.url, server.headers, Object.keys(server.secret_headers)]) !== JSON.stringify([input.transport, input.command, input.args, input.url, input.headers, input.secret_header_keys])
+  const sortedEntries = (value: Record<string, string>) => Object.entries(value).sort(([left], [right]) => left.localeCompare(right))
+  const current = [
+    server.transport, server.command, server.args, server.url,
+    sortedEntries(server.headers), sortedEntries(server.environment),
+    Object.keys(server.secret_headers).sort(), Object.keys(server.secret_environment).sort(),
+    [...server.permissions].sort(), server.startup_timeout_seconds, server.tool_timeout_seconds,
+  ]
+  const next = [
+    input.transport, input.command, input.args, input.url,
+    sortedEntries(input.headers), sortedEntries(input.environment),
+    [...input.secret_header_keys].sort(), [...input.secret_environment_keys].sort(),
+    [...input.permissions].sort(), input.startup_timeout_seconds, input.tool_timeout_seconds,
+  ]
+  return JSON.stringify(current) !== JSON.stringify(next)
 }
 
 async function approve(server: McpServer): Promise<McpServer | null> {

frontend/src/features/workspace/FileTreePanel.spec.ts

@@ -74,4 +74,33 @@ describe('FileTreePanel file switching', () => {
     expect(editorStore.content).toContain('# 二叉搜索树')
     expect(editorStore.currentNoteId).toBe('note-bst')
   })
+
+  it('creates a Markdown note inside the selected folder', async () => {
+    const router = createRouter({
+      history: createMemoryHistory(),
+      routes: [{ path: '/workspace', component: { template: '<div />' } }],
+    })
+    await router.push('/workspace')
+    await router.isReady()
+
+    const workspaceStore = useWorkspaceStore()
+    await workspaceStore.openVault('C:/vault')
+    const createFile = vi.spyOn(workspaceService, 'createFile').mockResolvedValue({
+      id: 'note-new', note_id: 'note-new', name: '新笔记.md',
+      path: '/数据结构/新笔记.md', type: 'file',
+    })
+    wrapper = mount(FileTreePanel, { attachTo: document.body, global: { plugins: [router] } })
+
+    await wrapper.findAll('.tree-node').find((node) => node.text().includes('数据结构'))!.trigger('click')
+    await wrapper.get('button[aria-label="新建笔记"]').trigger('click')
+    await wrapper.get('.new-item input').setValue('新笔记')
+    await wrapper.get('.new-item').trigger('submit')
+    await waitForPath('/数据结构/新笔记.md')
+    await vi.waitFor(() => {
+      expect(workspaceStore.activeFilePath).toBe('/数据结构/新笔记.md')
+    })
+
+    expect(createFile).toHaveBeenCalledWith('/数据结构', '新笔记.md', '# 新笔记\n\n')
+    expect(wrapper.findAll('.tree-node').some((node) => node.classes().includes('active') && node.text().includes('新笔记.md'))).toBe(true)
+  })
 })

frontend/src/features/workspace/FileTreePanel.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref } from 'vue'
+import { ref, watch } from 'vue'
 import { useRouter } from 'vue-router'
 import type { FileNode } from '@/contracts'
 import * as workspaceService from '@/services/workspaceService'
@@ -15,9 +15,19 @@ const router = useRouter()
 const newItemType = ref<'file' | 'folder' | null>(null)
 const newItemName = ref('')
 const parentPath = ref('/')
+const selectedTreePath = ref(workspaceStore.activeFilePath ?? '/')
+const selectedFolderPath = ref(
+  workspaceStore.activeFilePath ? containingFolder(workspaceStore.activeFilePath) : '/',
+)
 const contextTarget = ref<FileNode | null>(null)
 const contextMenuPosition = ref({ x: 0, y: 0 })
 
+watch(() => workspaceStore.activeFilePath, (path) => {
+  if (!path) return
+  selectedTreePath.value = path
+  selectedFolderPath.value = containingFolder(path)
+})
+
 function beginCreate(type: 'file' | 'folder', parent = '/') {
   newItemType.value = type
   newItemName.value = ''
@@ -31,19 +41,28 @@ async function createItem() {
     const name = rawName.endsWith('.md') ? rawName : `${rawName}.md`
     const file = await workspaceService.createFile(parentPath.value, name, `# ${rawName}\n\n`)
     workspaceStore.addFileToTree(parentPath.value, file)
+    selectedTreePath.value = file.path
+    selectedFolderPath.value = parentPath.value
     await editorStore.loadFile(file.path)
     workspaceStore.openFile(file.path)
     await router.push('/workspace')
   } else {
     const folder = await workspaceService.createFolder(parentPath.value, rawName)
     workspaceStore.addFileToTree(parentPath.value, folder)
+    selectedTreePath.value = folder.path
+    selectedFolderPath.value = folder.path
   }
   newItemType.value = null
   newItemName.value = ''
 }
 
 async function openNode(node: FileNode) {
-  if (node.type === 'folder') return workspaceStore.toggleFolder(node.path)
+  selectedTreePath.value = node.path
+  if (node.type === 'folder') {
+    selectedFolderPath.value = node.path
+    return workspaceStore.toggleFolder(node.path)
+  }
+  selectedFolderPath.value = containingFolder(node.path)
   // 先同步活动文件，让真实点击立即生效；内容加载失败时再恢复原状态。
   const previousPath = workspaceStore.activeFilePath
   const wasOpen = workspaceStore.openFiles.includes(node.path)
@@ -61,6 +80,8 @@ async function openNode(node: FileNode) {
 function openContextMenu(event: MouseEvent, node: FileNode) {
   event.preventDefault()
   event.stopPropagation()
+  selectedTreePath.value = node.path
+  selectedFolderPath.value = node.type === 'folder' ? node.path : containingFolder(node.path)
   contextTarget.value = node
   contextMenuPosition.value = { x: event.clientX, y: event.clientY }
 }
@@ -79,6 +100,12 @@ async function renameTarget() {
     await workspaceService.renameFile(oldPath, normalizedName)
     workspaceStore.renamePath(oldPath, newPath, normalizedName)
     editorStore.renameFilePath(oldPath, newPath)
+    if (selectedTreePath.value === oldPath || selectedTreePath.value.startsWith(`${oldPath}/`)) {
+      selectedTreePath.value = `${newPath}${selectedTreePath.value.slice(oldPath.length)}`
+    }
+    if (selectedFolderPath.value === oldPath || selectedFolderPath.value.startsWith(`${oldPath}/`)) {
+      selectedFolderPath.value = `${newPath}${selectedFolderPath.value.slice(oldPath.length)}`
+    }
   }
   closeContextMenu()
 }
@@ -90,19 +117,28 @@ async function deleteTarget() {
   await workspaceService.deleteFile(node.path)
   const activeWasRemoved = workspaceStore.closePath(node.path)
   workspaceStore.removeFromTree(node.path)
+  if (selectedTreePath.value === node.path || selectedTreePath.value.startsWith(`${node.path}/`)) {
+    selectedTreePath.value = containingFolder(node.path)
+    selectedFolderPath.value = selectedTreePath.value
+  }
   if (activeWasRemoved) {
     editorStore.closeFile()
     if (workspaceStore.activeFilePath) await editorStore.loadFile(workspaceStore.activeFilePath)
   }
   closeContextMenu()
 }
+
+function containingFolder(path: string): string {
+  const separator = path.lastIndexOf('/')
+  return separator > 0 ? path.slice(0, separator) : '/'
+}
 </script>
 
 <template>
   <section class="file-tree-panel" @click="closeContextMenu">
     <div class="toolbar">
-      <button type="button" title="新建笔记" aria-label="新建笔记" @click.stop="beginCreate('file')"><AppIcon :icon="DocumentAdd" /></button>
-      <button type="button" title="新建文件夹" aria-label="新建文件夹" @click.stop="beginCreate('folder')"><AppIcon :icon="FolderAdd" /></button>
+      <button type="button" title="新建笔记" aria-label="新建笔记" @click.stop="beginCreate('file', selectedFolderPath)"><AppIcon :icon="DocumentAdd" /></button>
+      <button type="button" title="新建文件夹" aria-label="新建文件夹" @click.stop="beginCreate('folder', selectedFolderPath)"><AppIcon :icon="FolderAdd" /></button>
     </div>
     <form v-if="newItemType" class="new-item" @submit.prevent="createItem">
       <input v-model="newItemName" :placeholder="newItemType === 'file' ? '笔记名称' : '文件夹名称'" autofocus />
@@ -111,7 +147,7 @@ async function deleteTarget() {
     </form>
     <div class="tree">
       <FileTreeNode v-for="node in workspaceStore.fileTree" :key="node.id" :node="node"
-        :active-path="workspaceStore.activeFilePath" @open="openNode" @context-menu="openContextMenu" />
+        :active-path="selectedTreePath" @open="openNode" @context-menu="openContextMenu" />
     </div>
     <Teleport to="body">
       <div v-if="contextTarget" class="context-menu"