diff --git a/README.md b/README.md
index 625051b..e1d3e82 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 基于 [ARTEMIS](https://github.com/google/artemis) 扩展的 Android AI 自动化测试平台。用自然语言描述任务，即可通过简体中文网页或 MCP 驱动真机、模拟器执行操作并收集结果。模型统一使用 **OpenAI Responses API**。
 
-**2.4.0**：人工评审支持原始用例、自动保存与上一条/下一条；执行详情默认折叠长字段。升级 OpenAI/LangChain 及安全依赖，修复 Windows 资源锁、报告证据与历史用量。配套「任务人工评审 1.1.0」独立安装。见 [2.4.0 发行说明](docs/releases/2.4.0.md)；上一版本见 [2.3.0](docs/releases/2.3.0.md)。
+**2.4.1**：修复全新安装时的 npm 校验失败，准确检查 Node.js 版本要求。人工评审插件继续使用 1.1.0，市场使用兼容旧宿主的独立索引。见 [2.4.1 发行说明](docs/releases/2.4.1.md)；功能更新见 [2.4.0](docs/releases/2.4.0.md)。
 
 ## 主要功能
 
diff --git a/apps/showcase_ui/package-lock.json b/apps/showcase_ui/package-lock.json
index 0c8c9ce..3528289 100644
--- a/apps/showcase_ui/package-lock.json
+++ b/apps/showcase_ui/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "artemis-showcase-ui",
-  "version": "2.4.0",
+  "version": "2.4.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "artemis-showcase-ui",
-      "version": "2.4.0",
+      "version": "2.4.1",
       "dependencies": {
         "@angular/cdk": "^22.2.4",
         "@angular/common": "^22.2.3",
@@ -253,7 +253,7 @@
         "@angular-devkit/schematics": "22.2.4",
         "@inquirer/prompts": "8.7.2",
         "@listr2/prompt-adapter-inquirer": "4.2.7",
-        "@modelcontextprotocol/server": "2.4.0",
+        "@modelcontextprotocol/server": "2.3.1",
         "@schematics/angular": "22.2.4",
         "jsonc-parser": "3.3.1",
         "listr2": "11.1.0",
@@ -2043,8 +2043,8 @@
       ]
     },
     "node_modules/@modelcontextprotocol/core": {
-      "version": "2.4.0",
-      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/core/-/core-2.4.0.tgz",
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/core/-/core-2.3.1.tgz",
       "integrity": "sha512-laVmIhPGpWi7rG9q+0UigblRN0Hws/Yjlb6qLFtVqryXVLkc4h+yN8z731POD2LnAGQlFe7/tXhUm7Bi0YB91g==",
       "dev": true,
       "license": "Apache-2.0",
@@ -2056,13 +2056,13 @@
       }
     },
     "node_modules/@modelcontextprotocol/server": {
-      "version": "2.4.0",
-      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/server/-/server-2.4.0.tgz",
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/@modelcontextprotocol/server/-/server-2.3.1.tgz",
       "integrity": "sha512-e59MfWuSssj6DoQ96JCTqdW1AXT5/XtnTl0WWd6MU1Ka434fFUGGosCLJbGNySDhHGvxQWoRWK137FXYFkYNWw==",
       "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
-        "@modelcontextprotocol/core": "2.4.0",
+        "@modelcontextprotocol/core": "2.3.1",
         "zod": "^4.2.0"
       },
       "engines": {
diff --git a/apps/showcase_ui/package.json b/apps/showcase_ui/package.json
index 2d739e1..323655e 100644
--- a/apps/showcase_ui/package.json
+++ b/apps/showcase_ui/package.json
@@ -1,6 +1,6 @@
 {
   "name": "artemis-showcase-ui",
-  "version": "2.4.0",
+  "version": "2.4.1",
   "scripts": {
     "ng": "ng",
     "start": "ng serve --proxy-config proxy.conf.json",
diff --git a/docs/releases/2.4.0.md b/docs/releases/2.4.0.md
index b9dc0d1..9617953 100644
--- a/docs/releases/2.4.0.md
+++ b/docs/releases/2.4.0.md
@@ -1,5 +1,7 @@
 # ARTEMIS 2.4.0
 
+> 全新安装的 npm 校验失败已在 [2.4.1](2.4.1.md) 修复，请使用补丁版源码包或通过更新脚本升级。
+
 本版改进批量用例人工评审与执行详情阅读，并包含 OpenAI SDK 适配、安全依赖更新、Windows 资源锁和报告证据修复。配套「任务人工评审」独立发布 **1.1.0**。
 
 ## 人工评审与原始用例
diff --git a/docs/releases/2.4.1.md b/docs/releases/2.4.1.md
new file mode 100644
index 0000000..b2a2cfc
--- /dev/null
+++ b/docs/releases/2.4.1.md
@@ -0,0 +1,26 @@
+# ARTEMIS 2.4.1
+
+本补丁修复 2.4.0 全新安装时的 `npm ci / EINTEGRITY`，适用于 `start.bat` 和 `start-cn.bat`。人工评审插件版本保持 **1.1.0**。
+
+## 修复
+
+- 2.4.0 发版时误将锁文件中的 MCP 间接依赖版本从 2.3.1 改为 2.4.0，仍保留 2.3.1 的 SHA-512。现在恢复 Angular CLI 22.2.4 官方声明的 `@modelcontextprotocol/server@2.3.1` 及其 `core@2.3.1`，使依赖关系、下载地址和校验值一致。未关闭 npm 完整性验证，也不要求用户清空全局缓存。
+- Windows 启动脚本准确检查 Angular 支持的 Node.js 范围：22.x 至少 22.22.3，24.x 至少 24.15.0，或 26.0.0 及以上；提示文案同步修正。
+- 保留最终 2.4.0 中的独立 v4 市场索引，提供人工评审 1.1.0；旧版宿主继续使用旧索引。曾用于发版准备的早期 2.4.0 候选包仍使用 v3 索引，会显示人工评审 1.0.0，不应继续分发。
+
+## 验证
+
+- Windows、Node.js 24.22.1、npm 11.19.1，独立源码目录及空 npm 缓存，使用国内镜像执行 `npm ci`：448 个包安装成功。实际依赖树与 Angular CLI 官方声明一致。
+- 同一全新环境下，前端 ChromeHeadless 347 项通过，生产构建通过；官方 npm 审计未发现已知漏洞。
+- 默认后端回归 3268 通过、2 跳过、8 按标记排除；包含 Node 22/24/26 兼容边界与启动脚本回归。Ruff、质量基线和核心类型检查通过。
+- 未启动用户服务，未执行设备或真实业务验收；以上为安装、构建和确定性测试结果。
+
+## 升级
+
+已有安装请先等待任务结束，再运行 `update-cn.bat`（国内镜像）或 `update.bat`，随后重新启动。建议使用更新脚本保留已有配置与数据，不要直接用源码 ZIP 覆盖安装目录。
+
+如果此前已手动修改 `package-lock.json`，更新脚本可能因本地修改而停止；先备份这份文件，确认只包含该安装问题的临时修正后再处理冲突，不要对整个仓库执行重置或清理。
+
+新安装请下载本版 `artemis-2.4.1-source.zip`，按 `SHA256SUMS.txt` 校验后使用。插件仍需在市场中单独安装或更新并启用，升级主程序不会自动授权插件。
+
+本次不构建 Docker，不启动或重启用户服务，不操作真实设备或业务任务。
diff --git a/pyproject.toml b/pyproject.toml
index 705efb2..2d5c2a0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@
 
 [project]
 name = "artemis"
-version = "2.4.0"
+version = "2.4.1"
 description = "Autonomous AI Assistant for Mobile Automation"
 
 authors = [
diff --git a/scripts/start.ps1 b/scripts/start.ps1
index 90bbbb2..680c959 100644
--- a/scripts/start.ps1
+++ b/scripts/start.ps1
@@ -218,14 +218,10 @@ function Test-NodeCompatible {
         $verRaw = (& node -v 2>$null)
         if (-not $verRaw) { return $false }
         $verStr = $verRaw.ToString().Trim().TrimStart('v')
-        $parts = $verStr.Split('.')
-        if ($parts.Count -ge 2) {
-            $major = [int]$parts[0]
-            $minor = [int]$parts[1]
-            if ($major -ge 26) { return $true }
-            if ($major -eq 24 -and $minor -ge 15) { return $true }
-            if ($major -eq 22 -and $minor -ge 22) { return $true }
-        }
+        $version = [version]$verStr
+        if ($version.Major -ge 26) { return $true }
+        if ($version.Major -eq 24 -and $version -ge [version]'24.15.0') { return $true }
+        if ($version.Major -eq 22 -and $version -ge [version]'22.22.3') { return $true }
     } catch {
         return $false
     }
@@ -383,7 +379,7 @@ if ($frontendChanged -or ((-not (Test-Path $ShowcaseIndex)) -and (-not (Test-Pat
     if (-not (Test-NodeCompatible)) {
         if (Test-CommandExists "node") {
             $curVer = (& node -v 2>$null)
-            Write-Host (Get-LaunchText "   [INFO] Detected Node.js $curVer, but Angular CLI requires Node.js >= v22.22.0." "   [检查] 检测到 Node.js $curVer；前端需要 v22.22.0 或更新版本。") -ForegroundColor Yellow
+            Write-Host (Get-LaunchText "   [INFO] Detected Node.js $curVer; Angular CLI requires 22.x >= 22.22.3, 24.x >= 24.15.0, or >= 26.0.0." "   [检查] 检测到 Node.js $curVer；前端需要 22.x >= 22.22.3、24.x >= 24.15.0 或 >= 26.0.0。") -ForegroundColor Yellow
         } else {
             Write-Host (Get-LaunchText "   [INFO] Node.js/npm not found (required for Showcase UI)." "   [检查] 未找到 Node.js/npm，网页构建需要安装。") -ForegroundColor Cyan
         }
@@ -401,7 +397,7 @@ if ($frontendChanged -or ((-not (Test-Path $ShowcaseIndex)) -and (-not (Test-Pat
             $useWinGetNode = $false
             if ($ArtemisDownloads.mode -ne 'China' -and (Test-CommandExists "winget")) {
                 if ([Console]::IsInputRedirected -eq $false) {
-                    Write-Host (Get-LaunchText "   [INFO] Node.js >= v22.22.0 required for Showcase UI." "   [检查] 网页需要 Node.js v22.22.0 或更新版本。") -ForegroundColor Cyan
+                    Write-Host (Get-LaunchText "   [INFO] Showcase UI requires Node.js 22.x >= 22.22.3, 24.x >= 24.15.0, or >= 26.0.0." "   [检查] 网页需要 Node.js 22.x >= 22.22.3、24.x >= 24.15.0 或 >= 26.0.0。") -ForegroundColor Cyan
                     $ans = Read-Host (Get-LaunchText "      Install/Upgrade Node.js via WinGet (may require Administrator)? [Y/n]" "      通过 WinGet 安装/升级 Node.js（可能需要管理员权限）？[Y/n]")
                     if ($ans -eq "" -or $ans -match "^[Yy]") {
                         $useWinGetNode = $true
diff --git a/tests/unit/test_download_mirrors.py b/tests/unit/test_download_mirrors.py
index 69f64bd..586aee2 100644
--- a/tests/unit/test_download_mirrors.py
+++ b/tests/unit/test_download_mirrors.py
@@ -75,6 +75,34 @@ if ($env:npm_config_registry) { throw 'Official mode selected a China registry'
     assert result.returncode == 0, result.stdout + result.stderr
 
 
+def test_node_compatibility_matches_angular_supported_release_lines(tmp_path):
+    result = powershell(
+        tmp_path,
+        """
+$tokens = $null; $errors = $null
+$ast = [System.Management.Automation.Language.Parser]::ParseFile($env:LAUNCH_SCRIPT, [ref]$tokens, [ref]$errors)
+if ($errors) { throw 'Launcher parse error' }
+$checker = $ast.Find({ param($node) $node -is [System.Management.Automation.Language.FunctionDefinitionAst] -and $node.Name -eq 'Test-NodeCompatible' }, $true)
+. ([scriptblock]::Create($checker.Extent.Text))
+function Test-CommandExists { return $true }
+function node { return $script:nodeVersion }
+$cases = @{
+    'v20.19.0' = $false; 'v22.22.0' = $false; 'v22.22.2' = $false
+    'v22.22.3' = $true; 'v22.23.2' = $true; 'v23.0.0' = $false
+    'v24.14.0' = $false; 'v24.15.0' = $true; 'v24.22.1' = $true
+    'v24.15.0-rc.1' = $false; 'v25.0.0' = $false; 'v26.0.0' = $true
+    'not-a-version' = $false
+}
+foreach ($case in $cases.GetEnumerator()) {
+    $script:nodeVersion = $case.Key
+    if ((Test-NodeCompatible) -ne $case.Value) { throw "Wrong compatibility for $($case.Key)" }
+}
+""",
+        LAUNCH_SCRIPT=str(ROOT / "scripts/start.ps1"),
+    )
+    assert result.returncode == 0, result.stdout + result.stderr
+
+
 @pytest.mark.parametrize("first_failure", ["http", "timeout", "hash", "all"])
 def test_scrcpy_source_failover_checks_hash_before_installing(tmp_path, first_failure):
     archive = tmp_path / "fixture.zip"
diff --git a/uv.lock b/uv.lock
index 583c090..628051d 100644
--- a/uv.lock
+++ b/uv.lock
@@ -248,7 +248,7 @@ wheels = [
 
 [[package]]
 name = "artemis"
-version = "2.4.0"
+version = "2.4.1"
 source = { editable = "." }
 dependencies = [
     { name = "adbutils" },