ci: run web replay on master linux

scripts/run-gates.spec.ts

@@ -57,6 +57,7 @@ function withEnv<T>(name: string, value: string | undefined, action: () => T): T
 describe('gate graph validation', () => {
   it.each([
     'ci-primary',
+    'ci-linux-primary',
     'ci-static',
     'ci-lint',
     'ci-coverage',
@@ -166,6 +167,19 @@ describe('Node 24 consumer graph', () => {
   })
 })
 
+describe('Linux primary graph', () => {
+  it('adds the same compare-only web gate after built client artifacts', () => {
+    const subject = withPnpmEntrypoint(() => gatesForMode('ci-linux-primary'))
+    const web = subject.find(item => item.id === 'web-snapshot')
+
+    expect(web).toMatchObject({
+      displayCommand: 'DSH_SNAPSHOT=replay pnpm run test:web:built',
+      env: { DSH_SNAPSHOT: 'replay' },
+      needs: ['built-package-invariants'],
+    })
+  })
+})
+
 describe('gate process outcomes', () => {
   it.skipIf(process.platform === 'win32')('reports signal termination independently from exit status', async () => {
     const result = await runGate(gate('terminated', {

scripts/run-gates.ts

@@ -13,6 +13,7 @@ import { performance } from 'node:perf_hooks'
 /** A named aggregate exposed by the gate runner. */
 export type Mode =
   | 'ci-primary'
+  | 'ci-linux-primary'
   | 'ci-static'
   | 'ci-lint'
   | 'ci-coverage'
@@ -97,6 +98,7 @@ async function main(args: string[]): Promise<number> {
 function parseMode(raw: string | undefined): Mode {
   switch (raw) {
     case 'ci-primary':
+    case 'ci-linux-primary':
     case 'ci-static':
     case 'ci-lint':
     case 'ci-coverage':
@@ -112,7 +114,7 @@ function parseMode(raw: string | undefined): Mode {
       return raw
     default:
       throw new Error(
-        `run-gates: expected mode ci-primary | ci-static | ci-lint | ci-coverage | ci-snapshot | ci-artifacts | ci-consumers | ci-windows-blocking | ci-windows-complete | ci-windows-observational | node-compat | check-all | doc-sync, got ${JSON.stringify(raw)}.`,
+        `run-gates: expected mode ci-primary | ci-linux-primary | ci-static | ci-lint | ci-coverage | ci-snapshot | ci-artifacts | ci-consumers | ci-windows-blocking | ci-windows-complete | ci-windows-observational | node-compat | check-all | doc-sync, got ${JSON.stringify(raw)}.`,
       )
   }
 }
@@ -190,6 +192,8 @@ export function gatesForMode(selected: Mode): Gate[] {
   switch (selected) {
     case 'ci-primary':
       return ciPrimaryGates()
+    case 'ci-linux-primary':
+      return [...ciPrimaryGates(), webSnapshotGate(['built-package-invariants'])]
     case 'ci-static':
       return ciStaticGates()
     case 'ci-lint':