fix(ci): avoid concurrent docs site builds

scripts/run-gates.ts

@@ -214,7 +214,6 @@ function ciPrimaryGates(): Gate[] {
     ...docSyncLeafGates(),
     pnpmScript('module-graph', 'verify-module-graph', { label: 'module graph' }),
     pnpmScript('knip', 'knip'),
-    pnpmScript('website-build', 'website:build', { label: 'website build' }),
     pnpmScript('build', 'build', { needs: ['typecheck'] }),
     pnpmScript('publint', 'publint', { needs: ['build'] }),
     pnpmScript('node-next-types', 'verify-node-next-types', {
@@ -234,7 +233,6 @@ function ciStaticGates(): Gate[] {
     ...docSyncLeafGates(),
     pnpmScript('module-graph', 'verify-module-graph', { label: 'module graph' }),
     pnpmScript('knip', 'knip'),
-    pnpmScript('website-build', 'website:build', { label: 'website build' }),
   ]
 }
 
@@ -349,6 +347,7 @@ function docSyncLeafGates(options: {
     pnpmScript('translation-prompt', 'verify-translation-prompt', { label: 'translation prompt' }),
     pnpmScript('translation-pairing', 'verify-translation-pairing', { label: 'translation pairing' }),
     pnpmScript('doc-budgets', 'verify-doc-budgets', { label: 'doc budgets' }),
+    // Keep the VitePress build in this single gate because projection rewrites website/.generated.
     pnpmScript('docs-site', 'docs:check', { label: 'documentation site' }),
     pnpmScript('package-readme-limitations', 'verify-package-readme-limitations', { label: 'package README limitations' }),
   ]