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/test/simpletest/remote.php

@@ -0,0 +1,115 @@
+<?php
+/**
+ *  base include file for SimpleTest
+ *  @package    SimpleTest
+ *  @subpackage UnitTester
+ *  @version    $Id: remote.php,v 1.3 2013/02/02 11:38:59 andig2 Exp $
+ */
+
+/**#@+
+ *  include other SimpleTest class files
+ */
+require_once(dirname(__FILE__) . '/browser.php');
+require_once(dirname(__FILE__) . '/xml.php');
+require_once(dirname(__FILE__) . '/test_case.php');
+/**#@-*/
+
+/**
+ *    Runs an XML formated test on a remote server.
+ *    @package SimpleTest
+ *    @subpackage UnitTester
+ */
+class RemoteTestCase {
+    private $url;
+    private $dry_url;
+    private $size;
+
+    /**
+     *    Sets the location of the remote test.
+     *    @param string $url       Test location.
+     *    @param string $dry_url   Location for dry run.
+     *    @access public
+     */
+    function __construct($url, $dry_url = false) {
+        $this->url = $url;
+        $this->dry_url = $dry_url ? $dry_url : $url;
+        $this->size = false;
+    }
+
+    /**
+     *    Accessor for the test name for subclasses.
+     *    @return string           Name of the test.
+     *    @access public
+     */
+    function getLabel() {
+        return $this->url;
+    }
+
+    /**
+     *    Runs the top level test for this class. Currently
+     *    reads the data as a single chunk. I'll fix this
+     *    once I have added iteration to the browser.
+     *    @param SimpleReporter $reporter    Target of test results.
+     *    @returns boolean                   True if no failures.
+     *    @access public
+     */
+    function run($reporter) {
+        $browser = $this->createBrowser();
+        $xml = $browser->get($this->url);
+        if (! $xml) {
+            trigger_error('Cannot read remote test URL [' . $this->url . ']');
+            return false;
+        }
+        $parser = $this->createParser($reporter);
+        if (! $parser->parse($xml)) {
+            trigger_error('Cannot parse incoming XML from [' . $this->url . ']');
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     *    Creates a new web browser object for fetching
+     *    the XML report.
+     *    @return SimpleBrowser           New browser.
+     *    @access protected
+     */
+    protected function createBrowser() {
+        return new SimpleBrowser();
+    }
+
+    /**
+     *    Creates the XML parser.
+     *    @param SimpleReporter $reporter    Target of test results.
+     *    @return SimpleTestXmlListener      XML reader.
+     *    @access protected
+     */
+    protected function createParser($reporter) {
+        return new SimpleTestXmlParser($reporter);
+    }
+
+    /**
+     *    Accessor for the number of subtests.
+     *    @return integer           Number of test cases.
+     *    @access public
+     */
+    function getSize() {
+        if ($this->size === false) {
+            $browser = $this->createBrowser();
+            $xml = $browser->get($this->dry_url);
+            if (! $xml) {
+                trigger_error('Cannot read remote test URL [' . $this->dry_url . ']');
+                return false;
+            }
+            $reporter = new SimpleReporter();
+            $parser = $this->createParser($reporter);
+            if (! $parser->parse($xml)) {
+                trigger_error('Cannot parse incoming XML from [' . $this->dry_url . ']');
+                return false;
+            }
+            $this->size = $reporter->getTestCaseCount();
+        }
+        return $this->size;
+    }
+}
+?>