- 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.

catalogue.php

@@ -161,7 +161,7 @@ render_head('Videos — TyClifford.com', '
     <?php foreach ($paged['videos'] as $v):
       $vslug   = $v['slug'];
       $vtitle  = $v['title'];
-      $vdesc   = $v['description'];
+      $vdesc   = media_description_plain_text($v['description']);
       $vthumb  = $v['thumbnail'];
       $vdur    = (int)$v['duration'];
       $created = substr($v['created_at'], 0, 10);