feat: add videodb media index with Docker stack

- Add videodb PHP/MySQL media collection manager (Blu-ray, DVD, CD)
- Dockerfile: PHP 8.1 + Apache with GD/mysqli/exif extensions
- docker-compose.yml: app on port 6761 + MySQL 8.0 with health checks
- docker-entrypoint.sh: auto-generates config.inc.php from env vars,
  waits for MySQL, initializes DB schema idempotently
- init-db.php: CLI schema installer using app's own prefix_query() logic
- Persistent volumes for DB, cache, and cover images

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

videodb/templates/nexgen/lookup_ajax.tpl

@@ -0,0 +1,54 @@
+{*
+  Inline ajax response display
+  $Id: lookup_ajax.tpl,v 1.1 2013/03/10 16:18:26 andig2 Exp $
+*}
+
+<!-- {$smarty.template} -->
+
+{if $searchtype == 'purchase'}
+
+{foreach item=match from=$imdbresults}
+    <div class="thumbnail" >
+        <a href="{$match.url}" target="_blank" title="Purchase">
+            <img src="{$match.imgsmall}" url="{$match.coverurl}" align="left" width="60" height="90" /><br />
+            {$match.title}{if $match.subtitle} - {$match.subtitle}{/if}
+            {if $match.sl}({$match.sl}){/if}
+            {if $match.price}({$match.price}){/if}
+        </a>
+    </div>
+{/foreach}
+
+{elseif $searchtype == 'download'}
+
+<ul>
+{foreach item=match from=$imdbresults}
+	<li><a href="{$match.url}" target="_blank">{$match.title}</a>{if $match.subtitle} - {$match.subtitle}{/if}
+		{if $match.plot && 0}<br/>{$match.plot}{/if}
+	</li>
+{/foreach}
+</ul>
+
+{elseif $searchtype == 'trailer'}
+
+{foreach item=match from=$imdbresults}
+	<span>
+		<object width="425" height="350">
+			<param name="movie" value="{$match}"></param>
+			<param name="wmode" value="transparent"></param>
+			<embed src="{$trailerid}" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed>
+		</object>
+	</span>
+{/foreach}
+
+{else}
+
+{foreach item=match from=$imdbresults}
+    <div class="thumbnail" >
+        <a href="javascript:void(returnImage('{$match.coverurl|escape:"javascript"}'))" url="{$match.coverurl}" title="Select image">
+            <img src="{$match.imgsmall}" url="{$match.coverurl}" align="left" width="60" height="90" /><br />
+            {$match.title}
+        </a>
+    </div>
+{/foreach}
+
+{/if}