feat(mindspace): add SEO/GEO delivery, page template catalog, and admin hooks

Enable optional SEO/GEO injection and discovery routes for confirmed public pages while keeping private pages noindex. Add premium page template skills, portal catalog API, template shop UI, and Baidu push gated by memind_adm config.

Co-authored-by: Cursor <cursoragent@cursor.com>

mindspace-seo-discovery-service.test.mjs

@@ -0,0 +1,33 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import {
+  renderLlmsTxt,
+  renderRobotsTxt,
+  renderSitemapXml,
+} from './mindspace-seo-discovery-service.mjs';
+
+test('renderSitemapXml emits only provided urls', () => {
+  const xml = renderSitemapXml(
+    [{ publicUrl: '/u/john/pages/demo', updatedAt: Date.parse('2026-08-01T00:00:00.000Z') }],
+    { origin: 'https://m.tkmind.cn' },
+  );
+  assert.match(xml, /<loc>https:\/\/m\.tkmind\.cn\/u\/john\/pages\/demo<\/loc>/);
+});
+
+test('renderRobotsTxt references sitemap when enabled', () => {
+  const body = renderRobotsTxt({
+    origin: 'https://m.tkmind.cn',
+    sitemapEnabled: true,
+    llmsTxtEnabled: true,
+  });
+  assert.match(body, /Sitemap: https:\/\/m\.tkmind\.cn\/sitemap\.xml/);
+  assert.match(body, /llms\.txt/);
+});
+
+test('renderLlmsTxt lists markdown links', () => {
+  const body = renderLlmsTxt(
+    [{ publicUrl: '/u/john/pages/demo', summary: '仙居玩水' }],
+    { origin: 'https://m.tkmind.cn' },
+  );
+  assert.match(body, /\[仙居玩水\]\(https:\/\/m\.tkmind\.cn\/u\/john\/pages\/demo\)/);
+});