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/elegant/search.tpl

@@ -0,0 +1,67 @@
+{*
+  Template for the search interface
+  $Id: search.tpl,v 1.15 2009/03/26 11:17:17 andig2 Exp $
+*}
+
+<!-- {$smarty.template} -->
+
+<script language="JavaScript" type="text/javascript" src="./javascript/search.js"></script>
+<script language="JavaScript" type="text/javascript" src="{$template}js/search.js"></script>
+
+<div id="actions">
+    {include file="searchengines.tpl"}
+
+    <form action="search.php" id="search" name="search" method="get">
+
+    {if !empty($imgurl)}
+    <div id="searchimage">
+        <span class="img-shadow">
+        <a href='http://uk.imdb.com/Name?{$q|replace:"&quot;|\"":""|escape:url}'>{html_image file=$imgurl max_width=97 max_height=144 id="actorimg"}</a>
+        </span>
+    </div>
+    {/if}
+
+<table>
+<tr>
+    <td>
+        <h3 style="display: block">{$lang.keywords}:</h3>
+
+        <input type="text" name="q" id="q" value='{$q_q}' size="45" autocomplete="off" maxlength="300" />
+		<div id="item_choices" class="autocomplete" style="display: none"></div>
+
+        <input type="button" class="button" value="{$lang.l_search}" onClick="submitSearch()" id="docpart_search" />
+		<span id="indicator1" style="display: none"><img src="{$template}images/spinner.gif" alt="{$lang.working}" /></span>
+
+        <br/>
+        {include file="searchradios.tpl"}
+
+        {if !empty($owners)}
+            <p>
+            <h3>{$lang.owner}:</h3>
+            {html_options name=owner id=owner options=$owners selected=$owner}<br/>
+            </p>
+        {/if}
+
+        <p>{$lang.keywords_desc}</p>
+    </td>
+    <td>
+        <h3 style="display: block">{$lang.fieldselect}:</h3>
+
+        <select name="fields[]" id="fields" size="8" multiple="multiple">
+        {html_options options=$search_fields selected=$selected_fields}
+        </select><br />
+
+        <span style="font-size:10px; font-weight: bold;"><a href="#" id="select_all">{$lang.selectall}</a></span>
+    </td>
+    <td>
+        <h3>{$lang.genre_desc}:</h3>
+
+        <div id="genres">{$genreselect}</div>
+    </td>
+</tr>
+</table>
+
+</form>
+</div>
+
+<!-- /actions -->