test(windows): enforce native coverage

scripts/ci-workflow.spec.ts

@@ -42,12 +42,21 @@ describe('CI workflow', () => {
 
     expect(windows['runs-on']).toBe('windows-2025')
     expect(windows.name).toBe('windows node 24 / native complete')
+    expect(windows.env).toMatchObject({ DSH_COVERAGE_MAX_WORKERS: '4' })
     expect(commandSteps).toHaveLength(3)
     expect(commandSteps.every(step => step.shell === 'pwsh')).toBe(true)
     expect(commandSteps.map(step => step.run)).toContain('pnpm run check:ci:windows-complete')
     expect(JSON.stringify(windows)).not.toMatch(/wine/i)
     expect(workflow.jobs).not.toHaveProperty('wine-apt-cache')
   })
+
+  it('keeps supported LSP source under native Windows coverage', () => {
+    const config = readFileSync(resolve(root, 'vitest.config.ts'), 'utf8')
+
+    expect(config).not.toContain('packages/lsp/lsp-local/src/connection.ts')
+    expect(config).not.toContain('packages/lsp/lsp-local/src/index.ts')
+    expect(config).not.toContain('packages/lsp/lsp-local/src/instance.ts')
+  })
 })
 
 describe('Issue lifecycle workflow', () => {

scripts/run-gates.spec.ts

@@ -83,6 +83,15 @@ describe('gate graph validation', () => {
     expect(ids).toContain('public-repository-links')
   })
 
+  it('keeps native Windows coverage blocking while portability inventory remains observational', () => {
+    const gates = withPnpmEntrypoint(() => gatesForMode('ci-windows-complete'))
+    const byId = new Map(gates.map(subject => [subject.id, subject]))
+
+    expect(byId.get('coverage')?.allowFailure).not.toBe(true)
+    expect(byId.get('coverage-exempt-heavy')?.allowFailure).not.toBe(true)
+    expect(byId.get('duplication')?.allowFailure).toBe(true)
+  })
+
   it.each([
     ['empty', [], /gate graph has no gates/],
     ['duplicate ids', [gate('same'), gate('same')], /duplicate gate id "same"/],

scripts/run-gates.ts

@@ -434,6 +434,7 @@ function ciWindowsCompleteGates(): Gate[] {
   return [
     pnpmScript('build', 'build'),
     pnpmScript('windows-site', 'docs:build', { label: 'production site' }),
+    ...coverageGates(),
     ...observational,
   ]
 }
@@ -441,7 +442,7 @@ function ciWindowsCompleteGates(): Gate[] {
 function ciWindowsObservationalGates(): Gate[] {
   return [
     ...ciStaticGates({ ownsBuild: true }),
-    // Linux owns required lint, coverage, and snapshots; Windows omits those duplicates.
+    // Linux owns required lint and snapshots; Windows omits those duplicates.
     pnpmScript('duplication', 'duplication'),
     pnpmScript('publint', 'publint', { needs: ['build'] }),
     pnpmScript('node-next-types', 'verify-node-next-types', {