Verify release shell readiness

scripts/verify-release-candidate.mjs

@@ -4,6 +4,7 @@ import { chromium } from 'playwright';
 
 const targetUrl = withDebugParam(process.env.RELEASE_QA_URL ?? 'http://127.0.0.1:4173/');
 const screenshotDir = 'dist';
+const expectedTitle = '\uC0BC\uAD6D\uC9C0: \uC138 \uD615\uC81C\uC758 \uB9F9\uC138';
 
 let serverProcess;
 let browser;
@@ -37,6 +38,7 @@ try {
   await page.evaluate(() => window.localStorage.clear());
   await page.reload({ waitUntil: 'domcontentloaded' });
   await waitForTitle(page);
+  await assertReleaseShellReady(page);
   await page.screenshot({ path: `${screenshotDir}/rc-title-first-run.png`, fullPage: true });
   await assertCanvasPainted(page, 'title first run');
 
@@ -218,6 +220,20 @@ async function waitForTitle(page) {
   }, undefined, { timeout: 90000 });
 }
 
+async function assertReleaseShellReady(page) {
+  const state = await page.evaluate(() => ({
+    title: document.title,
+    canvasCount: document.querySelectorAll('canvas').length,
+    debugApiPresent: Boolean(window.__HEROS_DEBUG__),
+    gameApiPresent: Boolean(window.__HEROS_GAME__)
+  }));
+
+  assert(state.title === expectedTitle, `Expected release page title "${expectedTitle}": ${JSON.stringify(state)}`);
+  assert(state.canvasCount === 1, `Expected exactly one release game canvas: ${JSON.stringify(state)}`);
+  assert(state.debugApiPresent === true, `Expected release QA debug API to be enabled: ${JSON.stringify(state)}`);
+  assert(state.gameApiPresent === true, `Expected release QA game handle to be enabled: ${JSON.stringify(state)}`);
+}
+
 async function waitForStoryReady(page) {
   await page.waitForFunction(() => {
     const activeScenes = window.__HEROS_DEBUG__?.activeScenes() ?? [];