realRoc · realRoc · Jun 3, 2026 · Jun 2, 2026 · Jun 3, 2026 · Jun 3, 2026
diff --git a/docs/en/blog.html b/docs/en/blog.html
@@ -1,5 +1,6 @@
 <!doctype html><html lang="en" data-lang="en"><head>
   <meta charset="utf-8">
+  <link rel="icon" href="../favicon.svg" type="image/svg+xml">
   <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
   <meta name="theme-color" content="#F6F1E8">
 

diff --git a/docs/en/case-redis-scan.html b/docs/en/case-redis-scan.html
@@ -1,5 +1,6 @@
 <!doctype html><html lang="en" data-lang="en"><head>
   <meta charset="utf-8">
+  <link rel="icon" href="../favicon.svg" type="image/svg+xml">
   <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
   <meta name="theme-color" content="#F6F1E8">
 

diff --git a/docs/en/index.html b/docs/en/index.html
@@ -1,5 +1,6 @@
 <!doctype html><html lang="en" data-lang="en"><head>
   <meta charset="utf-8">
+  <link rel="icon" href="../favicon.svg" type="image/svg+xml">
   <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
   <meta name="theme-color" content="#F6F1E8">
 

diff --git a/docs/en/skill.html b/docs/en/skill.html
@@ -1,5 +1,6 @@
 <!doctype html><html lang="en" data-lang="en"><head>
   <meta charset="utf-8">
+  <link rel="icon" href="../favicon.svg" type="image/svg+xml">
   <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
   <meta name="theme-color" content="#F6F1E8">
 

diff --git a/docs/game.html b/docs/game.html
diff --git a/package.json b/package.json
@@ -6,7 +6,8 @@
   "type": "module",
   "scripts": {
     "build:en": "node scripts/build-en.mjs",
-    "check:failsafe": "node scripts/check-reveal-failsafe.mjs"
+    "check:failsafe": "node scripts/check-reveal-failsafe.mjs",
+    "check:en-assets": "node scripts/check-en-assets.mjs"
   },
   "devDependencies": {
     "jsdom": "^25.0.1"

diff --git a/scripts/build-en.mjs b/scripts/build-en.mjs
@@ -216,6 +216,7 @@ const ROOT_ASSETS = new Set([
   'githire-analytics.js',
   'i18n.js',
   'game.html',
+  'favicon.svg',
 ]);
 
 function rewriteRelativeAssets(doc) {

diff --git a/scripts/check-en-assets.mjs b/scripts/check-en-assets.mjs
@@ -0,0 +1,70 @@
+// Regression guard for /en/ pages that are generated one directory below
+// docs/. Root-level assets must be referenced with ../ so they do not resolve
+// to missing /en/<asset> URLs.
+//
+// Run: npm run check:en-assets
+
+import { existsSync, readFileSync } from 'node:fs';
+import { dirname, join } from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { JSDOM } from 'jsdom';
+
+const ROOT = join(dirname(fileURLToPath(import.meta.url)), '..');
+const DOCS = join(ROOT, 'docs');
+const EN = join(DOCS, 'en');
+
+const pages = [
+  'index.html',
+  'blog.html',
+  'skill.html',
+  'case-redis-scan.html',
+];
+
+const rootAssets = new Set([
+  'favicon.svg',
+  'githire.css',
+  'githire-scroll.js',
+  'githire-analytics.js',
+  'i18n.js',
+  'game.html',
+]);
+
+let failed = 0;
+const assert = (cond, msg) => {
+  console.log((cond ? '✓' : '✗') + ' ' + msg);
+  if (!cond) failed++;
+};
+
+for (const asset of rootAssets) {
+  assert(existsSync(join(DOCS, asset)), `root asset exists: docs/${asset}`);
+}
+
+for (const page of pages) {
+  const html = readFileSync(join(EN, page), 'utf8');
+  const dom = new JSDOM(html);
+  const doc = dom.window.document;
+  let checked = 0;
+
+  for (const el of doc.querySelectorAll('[href], [src]')) {
+    for (const attr of ['href', 'src']) {
+      const value = el.getAttribute(attr);
+      if (!value) continue;
+      if (/^([a-z]+:|\/\/|#|\/)/i.test(value)) continue;
+
+      const path = value.split('#')[0].split('?')[0];
+      if (rootAssets.has(path)) {
+        assert(false, `${page}: ${attr}="${value}" is a bare root asset`);
+      }
+      if (path.startsWith('../') && rootAssets.has(path.slice(3))) {
+        checked++;
+        assert(existsSync(join(EN, path)), `${page}: ${attr}="${value}" resolves to an existing asset`);
+      }
+    }
+  }
+  assert(checked > 0, `${page}: checked ${checked} rewritten root asset references`);
+}
+
+console.log(failed === 0
+  ? '\nPASS — /en/ pages resolve root assets from the site root'
+  : `\nFAIL — ${failed} check(s) failed`);
+process.exit(failed ? 1 : 0);