ci(web): Phase P6 — vite build + headless E2E gate on every trunk merge (#1445) (#1454)

scripts/verify-release.test.mjs

@@ -228,9 +228,10 @@ steps:
 function assertStagesMirrorCi(stages, ci) {
   const canonical = Object.fromEntries(stages.map((stage) => [stage.name, stage.commands]));
 
-  // The complete mandatory set, in gate order. `quality-rails` is a
-  // canonical-only stage (RI-N4, QC-19): like `build`, it has no ci.yml
-  // mirror to match — its contract is asserted separately below.
+  // The complete mandatory set, in gate order. `quality-rails` is the one
+  // canonical-only stage (RI-N4, QC-19) with no ci.yml mirror to match — its
+  // contract is asserted separately below. `build` gained a ci.yml mirror in
+  // #1445 (P6) and is enforced with the other pnpm stages.
   assert.deepEqual(
     stages.map((stage) => stage.name),
     [
@@ -257,7 +258,7 @@ function assertStagesMirrorCi(stages, ci) {
 
   // pnpm stages: ci.yml commands minus `corepack enable` must be exactly the
   // canonical stage commands.
-  for (const stepName of ['typecheck', 'lint', 'format']) {
+  for (const stepName of ['typecheck', 'lint', 'format', 'build']) {
     assert.deepEqual(
       ci.steps[stepName].commands.filter((command) => command !== 'corepack enable'),
       canonical[stepName],