feat(linkedin): generalize build-html annotation renderer — tables, headings, inline code (S1a)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

plugins/linkedin-thought-leadership/render/__tests__/build-html.test.mjs

@@ -0,0 +1,65 @@
+import { describe, test } from 'node:test';
+import assert from 'node:assert/strict';
+import { markdownToHtml, inline } from '../build-html.mjs';
+
+describe('markdownToHtml — tables (beslutning H)', () => {
+  test('converts a pipe table to <table>/<tr>/<td>', () => {
+    const md = [
+      '| Plattform | Pris |',
+      '| --- | --- |',
+      '| Azure | Høy |',
+      '| Foundry | Lav |',
+    ].join('\n');
+    const html = markdownToHtml(md);
+    assert.match(html, /<table>/);
+    assert.match(html, /<tr>/);
+    assert.match(html, /<td>/);
+    // header cells render as <th>, body values as <td>
+    assert.match(html, /<th>Plattform<\/th>/);
+    assert.match(html, /<td>Azure<\/td>/);
+    // the separator row must NOT become a data row
+    assert.doesNotMatch(html, /<td>---<\/td>/);
+  });
+
+  test('empty input produces no table', () => {
+    assert.doesNotMatch(markdownToHtml(''), /<table>/);
+  });
+
+  test('tolerates a malformed row (uneven cell count) without throwing', () => {
+    const md = [
+      '| a | b |',
+      '| --- | --- |',
+      '| only-one-cell |',
+      '| x | y |',
+    ].join('\n');
+    let html;
+    assert.doesNotThrow(() => { html = markdownToHtml(md); });
+    assert.match(html, /<table>/);
+    assert.match(html, /<td>x<\/td>/);
+  });
+});
+
+describe('markdownToHtml — heading levels # … #### (beslutning H)', () => {
+  test('# renders <h1>', () => {
+    assert.match(markdownToHtml('# Tittel'), /<h1>Tittel<\/h1>/);
+  });
+  test('## renders <h2>', () => {
+    assert.match(markdownToHtml('## Seksjon'), /<h2>Seksjon<\/h2>/);
+  });
+  test('### renders <h3>', () => {
+    assert.match(markdownToHtml('### Under'), /<h3>Under<\/h3>/);
+  });
+  test('#### renders <h4>', () => {
+    assert.match(markdownToHtml('#### Detalj'), /<h4>Detalj<\/h4>/);
+  });
+});
+
+describe('inline — backtick code span (beslutning H)', () => {
+  test('`code` renders <code>', () => {
+    assert.match(inline('bruk `npm install` her'), /<code>npm install<\/code>/);
+  });
+  test('still handles **bold** and *italic*', () => {
+    assert.match(inline('**fet** og *kursiv*'), /<strong>fet<\/strong>/);
+    assert.match(inline('**fet** og *kursiv*'), /<em>kursiv<\/em>/);
+  });
+});