fix(docs): honor deployment base in standards links

docs/site/scripts/base-aware-href.test.mjs

@@ -0,0 +1,18 @@
+import assert from 'node:assert/strict';
+import { test } from 'node:test';
+
+import { baseAwareHref } from '../src/lib/base-aware-href.mjs';
+
+test('leaves root-relative links unchanged at the root base', () => {
+  assert.equal(baseAwareHref('/configure/relay/'), '/configure/relay/');
+});
+
+test('prefixes root-relative links with a non-root base', () => {
+  assert.equal(baseAwareHref('/configure/relay/', '/dev/'), '/dev/configure/relay/');
+  assert.equal(baseAwareHref('/configure/relay/', '/dev'), '/dev/configure/relay/');
+});
+
+test('leaves external and protocol-relative links unchanged', () => {
+  assert.equal(baseAwareHref('https://example.com/spec'), 'https://example.com/spec');
+  assert.equal(baseAwareHref('//example.com/spec', '/dev/'), '//example.com/spec');
+});

docs/site/src/components/StandardsTable.astro

@@ -1,8 +1,10 @@
 ---
 import standards from '../data/generated/standards.json';
+import { baseAwareHref } from '../lib/base-aware-href.mjs';
 
 // evidence_gap is an optional flag; absent from the JSON unless a row sets it.
 const rows = standards as ((typeof standards)[number] & { evidence_gap?: boolean })[];
+const base = import.meta.env.BASE_URL;
 ---
 
 <div class="standards-list">
@@ -56,7 +58,7 @@ const rows = standards as ((typeof standards)[number] & { evidence_gap?: boolean
           <span class="footer-label">Evidence</span>
           <ul class="link-list">
             {standard.evidence_docs.map((doc: { url: string; label: string }) => (
-              <li><a href={doc.url}>{doc.label}</a></li>
+              <li><a href={baseAwareHref(doc.url, base)}>{doc.label}</a></li>
             ))}
           </ul>
         </footer>

docs/site/src/lib/base-aware-href.mjs

@@ -0,0 +1,6 @@
+export function baseAwareHref(href, baseUrl = '/') {
+  if (!href.startsWith('/') || href.startsWith('//')) return href;
+
+  const base = baseUrl === '/' ? '' : baseUrl.replace(/\/$/, '');
+  return `${base}${href}`;
+}