fix: harden Windows startup and rebuild release

scripts/regression.js

@@ -10,6 +10,7 @@ const WebSocket = require('ws');
 
 const REPO_DIR = path.resolve(__dirname, '..');
 const SERVER_PATH = path.join(REPO_DIR, 'server.js');
+const WINDOWS_START_PATH = path.join(REPO_DIR, 'start.bat');
 const PUBLIC_APP_PATH = path.join(REPO_DIR, 'public', 'app.js');
 const PUBLIC_INDEX_PATH = path.join(REPO_DIR, 'public', 'index.html');
 const PUBLIC_STYLE_PATH = path.join(REPO_DIR, 'public', 'style.css');
@@ -3587,6 +3588,19 @@ function assertMultiAgentV2CompatibilityContract() {
   assert(frontendSource.includes('entry.agentPath ? `路径: ${entry.agentPath}`'), 'Sub-agent cards should expose the canonical agent path');
 }
 
+function assertWindowsStartupContract() {
+  const source = fs.readFileSync(WINDOWS_START_PATH, 'utf8').replace(/\r\n/g, '\n');
+
+  assert(source.includes('cd /d "%~dp0"'), 'Windows startup should switch to its own directory and support other drive letters');
+  assert(/where node(?:\.exe)? >nul 2>&1/i.test(source), 'Windows startup should verify that Node.js is available');
+  assert(/process\.versions\.node[\s\S]*?>= 18/.test(source), 'Windows startup should reject Node.js versions below 18');
+  assert(/where npm\.cmd >nul 2>&1/i.test(source), 'Windows startup should verify that npm.cmd is available');
+  assert(/call npm\.cmd (?:ci|install)/i.test(source), 'Windows startup should use call when invoking npm.cmd');
+  assert(/if errorlevel 1[\s\S]*?exit \/b 1/i.test(source), 'Windows startup should stop after an environment or dependency failure');
+  assert(source.includes('set "APP_EXIT_CODE=%ERRORLEVEL%"'), 'Windows startup should preserve the server exit code');
+  assert(source.includes('exit /b %APP_EXIT_CODE%'), 'Windows startup should return the server exit code to the caller');
+}
+
 async function main() {
   const targetIndex = process.argv.indexOf('--target');
   const regressionTarget = targetIndex >= 0 ? String(process.argv[targetIndex + 1] || '').trim() : String(process.env.CC_WEB_REGRESSION_TARGET || '').trim();
@@ -3657,6 +3671,11 @@ async function main() {
       console.log('Session item tooltip regression checks passed.');
       return;
     }
+    if (regressionTarget === 'windows-startup') {
+      assertWindowsStartupContract();
+      console.log('Windows startup regression checks passed.');
+      return;
+    }
     throw new Error(`Unknown regression target: ${regressionTarget}`);
   }
 
@@ -3682,6 +3701,7 @@ async function main() {
   assertSessionSwitchRaceContract();
   assertCodexAppChildToolFallbackContract();
   assertMultiAgentV2CompatibilityContract();
+  assertWindowsStartupContract();
 
   const tempRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'cc-web-regression-'));
   const configDir = path.join(tempRoot, 'config');