fix(creator-studio): render math/footnote shortcodes, inline code blocks, block deletion

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

tests/widget-system/creator-studio-contract.test.cjs

@@ -168,19 +168,39 @@ test('fixed top toolbar has TinyMCE formatting, media, and extension actions', (
 	// 表格 / 公式 / 注释 / 代码都走参数弹窗，不再是固定内容。
 	assert.match(appSource, /<BlockDialog/);
 	assert.match(appSource, /setBlockDialog\(kind as BlockDialogKind\)/);
-	assert.match(appSource, /setCodeDialog\(\{ language: 'generic', code: '' \}\)/);
+	// 代码块直接插入，不弹窗。
+	assert.match(appSource, /insertHtml\(codeBlockMarkup\('generic'\)\)/);
+	assert.doesNotMatch(appSource, /setCodeDialog/);
+	assert.doesNotMatch(read('assets/creator-studio/src/components/block-dialog.tsx'), /kind === 'code'/);
 	assert.match(read('assets/creator-studio/src/components/block-dialog.tsx'), /onSubmit\(\{ kind, rows: clamp\(rows, 1, 20\), cols: clamp\(cols, 1, 10\), header, striped \}\)/);
-	assert.match(read('assets/creator-studio/src/components/block-dialog.tsx'), /kind === 'code'/);
 	assert.match(appSource, /onInsertBlock=\{insertBlock\}/);
 	assert.match(appSource, /onInsertQuote=\{insertQuote\}/);
 	const markup = read('assets/creator-studio/src/utils/block-markup.ts');
-	assert.match(markup, /jio-toc-placeholder/);
-	assert.match(markup, /jio-math/);
+	assert.match(markup, /jio_math/);
 	// 引用沿用主题的 quote_q 结构与配色类。
 	assert.match(markup, /quote_q/);
 	assert.match(markup, /qe_wzk_c-red/);
+	// 公式与注释用短代码落库，由服务端保证渲染。
 	assert.doesNotMatch(markup, /E = mc\^2/);
-	assert.doesNotMatch(markup, /注释内容', 'jio'\)\s*\+\s*'<\/p>'/);
+	assert.match(markup, /\[jio_math display="1"\]/);
+	assert.match(markup, /\[jio_footnote\]/);
+	assert.match(markup, /\[jio_toc\]/);
+	// 代码块角标不再输出固定「高亮代码」文案。
+	assert.doesNotMatch(read('assets/css/frontend/pages/submit-editor.css'), /高亮代码/);
+	assert.doesNotMatch(read('assets/css/tinymce.css'), /content:\s*'高亮代码'/);
+
+	const blocks = read('src/Content/ContentBlocks.php');
+	const shortcodes = read('src/Core/Shortcodes.php');
+	assert.match(shortcodes, /add_shortcode\('jio_math'/);
+	assert.match(shortcodes, /add_shortcode\('jio_footnote'/);
+	assert.match(shortcodes, /add_shortcode\('jio_toc'/);
+	assert.match(blocks, /function shortcode_math/);
+	assert.match(blocks, /function shortcode_footnote/);
+	assert.match(blocks, /function append_footnotes/);
+	assert.match(blocks, /<sup>\$1\$2<\/sup>/);
+	// 删除键必须能移除相邻的块级元素。
+	assert.match(appSource, /function removeAdjacentBlock/);
+	assert.match(appSource, /removeAdjacentBlock\(editor, event\)/);
 	// 工具栏按钮统一为「图标在上、文字在下」。
 	assert.match(editorToolbar, /jio-creator__tool-label/);
 	assert.match(read('assets/creator-studio/src/styles/studio.scss'), /\.jio-creator__tool-btn\s*\{[\s\S]*?flex-direction:\s*column/);