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/lib/foundation4/js/foundation/foundation.alerts.js

@@ -0,0 +1,52 @@
+/*jslint unparam: true, browser: true, indent: 2 */
+
+;(function ($, window, document, undefined) {
+  'use strict';
+
+  Foundation.libs.alerts = {
+    name : 'alerts',
+
+    version : '4.2.2',
+
+    settings : {
+      speed: 300, // fade out speed
+      callback: function (){}
+    },
+
+    init : function (scope, method, options) {
+      this.scope = scope || this.scope;
+
+      if (typeof method === 'object') {
+        $.extend(true, this.settings, method);
+      }
+
+      if (typeof method !== 'string') {
+        if (!this.settings.init) { this.events(); }
+
+        return this.settings.init;
+      } else {
+        return this[method].call(this, options);
+      }
+    },
+
+    events : function () {
+      var self = this;
+
+      $(this.scope).on('click.fndtn.alerts', '[data-alert] a.close', function (e) {
+        e.preventDefault();
+        $(this).closest("[data-alert]").fadeOut(self.speed, function () {
+          $(this).remove();
+          self.settings.callback();
+        });
+      });
+
+      this.settings.init = true;
+    },
+
+    off : function () {
+      $(this.scope).off('.fndtn.alerts');
+    },
+
+    reflow : function () {}
+  };
+}(Foundation.zj, this, this.document));