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/lookup.php

@@ -0,0 +1,115 @@
+<?php
+/**
+ * IMDB lookup popup
+ *
+ * Popup to search at IMDB
+ *
+ * @package videoDB
+ * @author  Andreas Gohr    <a.gohr@web.de>
+ * @author  Andreas Goetz   <cpuidle@gmx.de>
+ * @version $Id: lookup.php,v 2.33 2010/04/04 10:33:56 andig2 Exp $
+ */
+ 
+require_once './core/functions.php';
+require_once './engines/engines.php';
+require_once './engines/imdb.php';
+
+/**
+ * Update item list asynchronously
+ *
+ * @author  Andreas Goetz   <cpuidle@gmx.de>
+ */ 
+function ajax_render()
+{
+    global $smarty, $result, $config;
+
+    // add some delay for debugging
+    if ($config['debug'] && $_SERVER['SERVER_ADDR'] == '127.0.0.1') usleep(rand(200,1000)*1000);
+
+    // load languages and config into Smarty
+    tpl_language();
+
+    $content = $smarty->fetch('lookup_ajax.tpl');
+
+    header('X-JSON: '.json_encode(array('count' => count($result))));
+    exit($content);
+}
+
+/**
+ * input
+ */
+$engine = req_string('engine');
+$find = req_string('find');
+$catalog = req_string('catalog');
+$searchaka = req_int('searchaka');
+$searchtype = req_string('searchtype');
+$ajax_render = req_int('ajax_render');
+$CLIENTERROR = null;
+
+// determine default engine (first in list)
+if (empty($engine)) $engine = engineGetDefault();
+
+// result array
+$result = array();
+
+// Undo url encoding. At this point we cannot be sure which encoding is present- either ISO from URL or UTF-8 from form subimssion. Make sure we have unicode again.
+$find = html_entity_decode_all(urldecode($find));
+if (!is_utf8($find)) $find = utf8_encode($find);
+
+switch ($engine)
+{
+    case 'amazona2s':
+                    // amazona2s
+                    $smarty->assign('catalog', array('Books','Classical','DigitalMusic','DVD','Electronics','Magazines','Music','MusicTracks','UnboxVideo','VHS','Video','VideoGames'));
+                    if (empty($catalog)) $catalog = 'DVD';
+                    $smarty->assign('selectedcatalog', $catalog);
+
+                    if (!empty($find))
+                    {
+                        $result     = engineSearch($find, $engine, $catalog);
+                        $searchurl  = engineGetSearchUrl($find, $engine);
+                    }
+                    break;
+                    
+    case 'imdb':
+                    // imdb
+                    $smarty->assign('searchaka', $searchaka);
+                    if (!empty($find))
+                    {
+                        $result     = engineSearch($find, $engine, $searchaka);
+                        $searchurl  = engineGetSearchUrl($find, $engine);
+                    }    
+                    break;
+
+    default:
+                    // tvcom, amazon, google
+                    if (!empty($find))
+                    {
+                        $result     = engineSearch($find, $engine);
+                        $searchurl  = engineGetSearchUrl($find, $engine);
+                    }
+}
+
+
+$smarty->assign('searchtype', $searchtype);
+$smarty->assign('imdbresults', $result);
+
+// process asynchronous refresh
+if ($ajax_render)
+{
+    ajax_render();
+}
+
+// prepare templates
+tpl_language();
+tpl_header();
+
+// prepare template with selected and available engines
+tpl_lookup($find, $engine, $searchtype);
+
+$smarty->assign('searchurl', $searchurl);
+$smarty->assign('http_error', $CLIENTERROR);
+
+// display templates
+smarty_display('lookup.tpl');
+