feat: lit/page-render-summary – rendered content as structured excerpt

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7

src/Integrations/WordPress/Render/PageRenderer.php

@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Integrations\WordPress\Render;
+
+use WP_Post;
+
+/**
+ * Renders the content area of an entry in-process, like the front end does for the_content
+ * (Divi 5 renders its blocks there – verified in DDEV). Header, footer and Theme Builder
+ * layouts are not part of it. Not final so abilities can be unit-tested with a mock.
+ */
+class PageRenderer
+{
+    public function render(WP_Post $post): string
+    {
+        $previous = $GLOBALS['post'] ?? null;
+        $GLOBALS['post'] = $post;
+        setup_postdata($post);
+        ob_start();
+        try {
+            $html = (string) apply_filters('the_content', (string) $post->post_content);
+        } finally {
+            $echoed = (string) ob_get_clean();
+            $GLOBALS['post'] = $previous;
+            if ($previous instanceof WP_Post) {
+                setup_postdata($previous);
+            } else {
+                wp_reset_postdata();
+            }
+        }
+
+        return $echoed . $html;
+    }
+}