Add initial files and database migration for ticket pricing system

- Created new directories and index files for controls, factory, and views.
- Added .htaccess files for URL rewriting in layout and images directories.
- Included a logo image in the layout/images directory.
- Implemented load_prices.php to load ticket prices from the database into settings.
- Developed admin panel settings page for enabling ticket sales.
- Created tickets management page in the admin panel to display and edit ticket prices.
- Added upgrade.php for database migrations, including creating the ticket_prices table and adding weekend price column.

templates/admin-panel/settings.php

@@ -0,0 +1,54 @@
+<?php
+  $enable_sell = $this->enable_sell;
+?>
+<div id="admin-settings">
+  <div class="container">
+    <div class="tickets-orders">
+      <h1>Ustawienia</h1>
+      <div class="card p-4 mb-3">
+        <div class="form-check form-switch">
+          <input class="form-check-input" type="checkbox" id="enable_sell" <?= $enable_sell == '1' ? 'checked' : '' ?>>
+          <label class="form-check-label" for="enable_sell">Sprzedaz biletow wlaczona</label>
+        </div>
+      </div>
+      <button type="button" class="btn btn-t1" id="save-settings">Zapisz ustawienia</button>
+    </div>
+  </div>
+</div>
+
+<script type="text/javascript">
+$(document).ready(function() {
+  $('#save-settings').on('click', function() {
+    var postData = {};
+    if ($('#enable_sell').is(':checked')) {
+      postData['enable_sell'] = '1';
+    }
+
+    $.ajax({
+      url: '/apanel/settings_save/',
+      type: 'POST',
+      data: postData,
+      dataType: 'json',
+      success: function(res) {
+        if (res.status === 'ok') {
+          $.alert({
+            title: 'Sukces',
+            content: 'Ustawienia zapisano',
+          });
+        } else {
+          $.alert({
+            title: 'Blad',
+            content: res.message || 'Wystapil blad',
+          });
+        }
+      },
+      error: function() {
+        $.alert({
+          title: 'Blad',
+          content: 'Nie udalo sie zapisac ustawien',
+        });
+      }
+    });
+  });
+});
+</script>