Fix Windows Harness process startup

.github/workflows/release.yml

@@ -8,6 +8,11 @@ on:
     branches:
       - main
   workflow_dispatch:
+    inputs:
+      windows_prerelease_tag:
+        description: Optional non-v tag for a Windows Dev pre-release
+        required: false
+        type: string
 
 permissions:
   contents: write
@@ -268,15 +273,92 @@ jobs:
       - run: npm ci
       - run: npm test
       - run: npm run typecheck
-      - run: npm run package:win
+      - name: Build Windows release package
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: npm run package:win
+      - name: Build isolated Windows development package
+        if: github.event_name == 'workflow_dispatch'
+        run: npm run package:dev:win
+      - name: Smoke test packaged Windows Harness
+        if: github.event_name == 'workflow_dispatch'
+        shell: pwsh
+        run: |
+          $userData = Join-Path $env:APPDATA 'dsh-desktop-dev'
+          $logPath = Join-Path $userData 'logs\harness.log'
+          $executable = 'dist-dev\win-unpacked\DSH Desktop Dev.exe'
+          if (Test-Path $userData) { Remove-Item -Recurse -Force $userData }
+          $desktop = Start-Process -FilePath $executable -PassThru
+          try {
+            $deadline = (Get-Date).AddSeconds(75)
+            $ready = $false
+            while ((Get-Date) -lt $deadline) {
+              if ($desktop.HasExited) {
+                throw "DSH Desktop Dev exited before Harness was ready (exit code $($desktop.ExitCode))."
+              }
+              if (Test-Path $logPath) {
+                $log = Get-Content -Raw $logPath
+                $match = [regex]::Match($log, '\[desktop\] endpoint (http://127\.0\.0\.1:\d+)')
+                if ($match.Success) {
+                  try {
+                    $response = Invoke-WebRequest -UseBasicParsing -Uri $match.Groups[1].Value -TimeoutSec 2
+                    if ($response.StatusCode -ge 200 -and $response.StatusCode -lt 500) {
+                      Start-Sleep -Seconds 5
+                      $stableLog = Get-Content -Raw $logPath
+                      if ($stableLog -match '\[stderr\]') {
+                        throw 'Harness reported stderr after HTTP became ready.'
+                      }
+                      if ($desktop.HasExited) {
+                        throw "DSH Desktop Dev exited after Harness became ready (exit code $($desktop.ExitCode))."
+                      }
+                      $ready = $true
+                      break
+                    }
+                  } catch { }
+                }
+              }
+              Start-Sleep -Milliseconds 500
+            }
+            if (-not $ready) { throw 'Packaged Harness did not become ready within 75 seconds.' }
+            Write-Host 'Packaged Windows Harness smoke test passed.'
+          } finally {
+            if (Test-Path $logPath) {
+              Write-Host '--- harness.log ---'
+              Get-Content $logPath
+            }
+            if (-not $desktop.HasExited) { Stop-Process -Id $desktop.Id -Force }
+          }
+      - name: Publish validated Windows development pre-release
+        if: github.event_name == 'workflow_dispatch' && inputs.windows_prerelease_tag != ''
+        shell: pwsh
+        env:
+          GH_TOKEN: ${{ github.token }}
+          PRERELEASE_TAG: ${{ inputs.windows_prerelease_tag }}
+        run: |
+          gh release create $env:PRERELEASE_TAG `
+            --repo $env:GITHUB_REPOSITORY `
+            --target $env:GITHUB_SHA `
+            --prerelease `
+            --title 'DSH Desktop Windows Harness Test' `
+            --notes "Windows x64 development build for validating the Harness startup fix from PR #39. This build uses an isolated app identity and user data directory, and has passed the packaged Windows Harness smoke test." `
+            'dist-dev/dsh-desktop-dev-windows-x64-setup.exe#DSH Desktop Dev Windows x64 Setup'
       - uses: actions/upload-artifact@v4
+        if: startsWith(github.ref, 'refs/tags/v')
         with:
           name: windows-x64
           path: |
             dist/dsh-desktop-windows-x64-setup.exe
             dist/dsh-desktop-windows-x64-setup.exe.blockmap
             dist/latest.yml
           if-no-files-found: error
+      - uses: actions/upload-artifact@v4
+        if: github.event_name == 'workflow_dispatch'
+        with:
+          name: windows-x64-dev
+          path: |
+            dist-dev/dsh-desktop-dev-windows-x64-setup.exe
+            dist-dev/dsh-desktop-dev-windows-x64-setup.exe.blockmap
+            dist-dev/latest.yml
+          if-no-files-found: error
 
   publish:
     name: Publish GitHub Release

build/dsh-desktop.patch.yml

@@ -0,0 +1,15 @@
+# DSH Desktop always runs the Host on the same machine as its operator.
+# Pin the dual-face native interaction instead of the web/remote browse fallback.
+- id: directory-picker
+  disabled: true
+
+- insert:
+    - id: directory-picker-native-desktop
+      name: '@deepseek-ai/dsh-host-directory-picker-native'
+
+    # The native interaction has a second, renderless client row. Without it
+    # ui-workspace has no directory-flow occupant, so every workspace picker
+    # entry point becomes inert or disappears even though the Host capability
+    # itself is running.
+    - id: directory-picker-native-desktop-surface
+      name: '@deepseek-ai/dsh-client-ui-directory-picker-native'

build/harness-node-entry.mjs

@@ -0,0 +1,32 @@
+import { pathToFileURL } from 'node:url'
+
+const [dshEntryPath, ...dshArguments] = process.argv.slice(2)
+
+function report(label, value) {
+  process.stderr.write(`[harness-node] ${label}: ${value}\n`)
+}
+
+process.on('uncaughtException', (error) => report('uncaught exception', error?.stack ?? error))
+process.on('unhandledRejection', (error) => report('unhandled rejection', error?.stack ?? error))
+
+process.stdout.write(
+  `[harness-node] runtime node=${process.version} platform=${process.platform} arch=${process.arch}\n`
+)
+process.stdout.write(`[harness-node] execPath=${process.execPath}\n`)
+process.stdout.write(`[harness-node] cwd=${process.cwd()}\n`)
+process.stdout.write(`[harness-node] DSH_HOME=${process.env.DSH_HOME ?? ''}\n`)
+
+if (!dshEntryPath) {
+  report('startup error', 'missing DSH entry path')
+  process.exitCode = 1
+} else {
+  process.stdout.write(`[harness-node] loading=${dshEntryPath}\n`)
+  process.argv = [process.execPath, dshEntryPath, ...dshArguments]
+  try {
+    await import(pathToFileURL(dshEntryPath).href)
+    process.stdout.write('[harness-node] DSH entry loaded\n')
+  } catch (error) {
+    report('DSH entry failed', error?.stack ?? error)
+    process.exitCode = 1
+  }
+}

build/splash.html

@@ -0,0 +1,42 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width,initial-scale=1" />
+    <title></title>
+    <style>
+      :root { color-scheme: light dark; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
+      * { box-sizing: border-box; }
+      html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; }
+      body { display: grid; place-items: center; color: #17181a; background: #f8f8f6; }
+      main { display: grid; justify-items: center; gap: 18px; padding: 32px; text-align: center; }
+      .mark { width: 72px; height: 72px; border-radius: 18px; animation: breathe 1.9s ease-in-out infinite; }
+      .title { margin: 0; font-size: 23px; font-weight: 650; letter-spacing: -0.02em; }
+      .status { margin: -7px 0 0; color: #777a80; font-size: 13px; }
+      .track { width: 168px; height: 3px; overflow: hidden; border-radius: 99px; background: rgba(20, 21, 24, 0.09); }
+      .bar { width: 42%; height: 100%; border-radius: inherit; background: #4d6bfe; animation: travel 1.25s ease-in-out infinite; }
+      @keyframes breathe { 0%, 100% { transform: scale(0.97); opacity: 0.86; } 50% { transform: scale(1); opacity: 1; } }
+      @keyframes travel { 0% { transform: translateX(-105%); } 100% { transform: translateX(345%); } }
+      @media (prefers-color-scheme: dark) {
+        body { color: #f3f4f6; background: #141416; }
+        .status { color: #9ca0a8; }
+        .track { background: rgba(255, 255, 255, 0.11); }
+      }
+      @media (prefers-reduced-motion: reduce) { .mark, .bar { animation: none; } .bar { width: 100%; opacity: 0.6; } }
+    </style>
+  </head>
+  <body>
+    <main>
+      <img class="mark" src="icon.png" alt="" />
+      <h1 class="title" id="title">Starting DSH Desktop</h1>
+      <p class="status" id="status">First launch may take a moment.</p>
+      <div class="track" aria-hidden="true"><div class="bar"></div></div>
+    </main>
+    <script>
+      if (navigator.language.toLowerCase().startsWith('zh')) {
+        document.getElementById('title').textContent = '正在启动 DSH Desktop'
+        document.getElementById('status').textContent = '首次启动可能需要一点时间。'
+      }
+    </script>
+  </body>
+</html>

electron-builder.dev.cjs

@@ -13,5 +13,9 @@ module.exports = {
     productName: 'DSH Desktop Dev',
     dshDesktopChannel: 'development'
   },
+  nsis: {
+    ...packageJson.build.nsis,
+    artifactName: 'dsh-desktop-dev-windows-${arch}-setup.${ext}'
+  },
   publish: null
 }

package.json

@@ -33,6 +33,7 @@
     "test:watch": "vitest",
     "package:dir": "npm run build && electron-builder --dir",
     "package:dev:dir": "npm run build && electron-builder --dir --config electron-builder.dev.cjs",
+    "package:dev:win": "node scripts/verify-target.mjs win32 x64 && npm run build && electron-builder --win --x64 --publish never --config electron-builder.dev.cjs",
     "package:mac": "npm run build && electron-builder --mac --publish never",
     "package:mac:arm64": "node scripts/verify-target.mjs darwin arm64 && npm run build && electron-builder --mac --arm64 --publish never",
     "package:mac:x64": "node scripts/verify-target.mjs darwin x64 && npm run build && electron-builder --mac --x64 --publish never",
@@ -59,7 +60,8 @@
     "@deepseek-ai/dsh-subprocess": "0.1.0-rc.6",
     "@deepseek-ai/dsh-timeout": "0.1.0-rc.6",
     "@deepseek-ai/dsh-workflow": "0.1.0-rc.6",
-    "electron-updater": "^6.8.9"
+    "electron-updater": "^6.8.9",
+    "node": "24.9.0"
   },
   "devDependencies": {
     "@types/node": "24.10.1",
@@ -89,6 +91,18 @@
       {
         "from": "build/app-icon.png",
         "to": "icon.png"
+      },
+      {
+        "from": "build/harness-node-entry.mjs",
+        "to": "harness-node-entry.mjs"
+      },
+      {
+        "from": "build/dsh-desktop.patch.yml",
+        "to": "dsh-desktop.patch.yml"
+      },
+      {
+        "from": "build/splash.html",
+        "to": "splash.html"
       }
     ],
     "publish": [