- Descriptions now render Markdown or sanitized HTML via [includes/db.php](/Users/tyemeclifford/Documents/GH/mediaplayer/includes/db.php).

Public player descriptions render formatted HTML on the homepage.
Catalogue cards, embed meta tags, and social metadata use safe 
plain-text excerpts.
Add/edit admin pages now use a rich description editor that preserves 
pasted HTML styling, with a textarea fallback for no-JS.
External/YouTube-imported descriptions are sanitized before storage.
README now documents Markdown/HTML description support.

admin/edit.php

@@ -39,7 +39,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
 
     if ($action === 'save') {
         $title       = trim($_POST['title'] ?? '');
-        $description = trim($_POST['description'] ?? '');
+        $description = media_prepare_description_for_storage($_POST['description'] ?? '');
         $duration    = (int)($_POST['duration'] ?? 0);
         $sort_order  = (int)($_POST['sort_order'] ?? 0);
         $view_count  = max(0, (int)($_POST['view_count'] ?? $video['view_count']));
@@ -335,8 +335,8 @@ render_head('Edit Video — Admin', '
                      value="<?= h($video['title']) ?>" required>
             </div>
             <div class="form-group span2">
-              <label class="form-label" for="description">Description</label>
-              <textarea class="form-textarea" id="description" name="description" rows="3"><?= h($video['description']) ?></textarea>
+              <label class="form-label" id="description-label" for="description">Description</label>
+              <?php render_description_editor($video['description']); ?>
             </div>
             <div class="form-group">
               <label class="form-label">Slug (auto-generated)</label>
@@ -508,6 +508,7 @@ render_head('Edit Video — Admin', '
   <?php render_footer(); ?>
 </main>
 
+<?php render_description_editor_script(); ?>
 <script>
 function toggleSourceRow(row) {
   var select = row.querySelector('.source-type-select');