Add initial implementation of Simple Gantt chart and sample names list

- Created index.html for the Gantt chart with sample tasks and configurations.
- Added styles for the Gantt chart and linked necessary CSS and JS files.
- Introduced a names.txt file containing a list of names for potential use in the application.

autoload/controls/class.Tasks.php

@@ -2,40 +2,15 @@
 namespace controls;
 class Tasks
 {
-  static public function gantt_json() {
+  static public function task_change_dates() {
     global $mdb;
 
-    $tasks = $mdb -> query( 'SELECT t.id, t.name, t.date_start, t.date_end, t.status, t.client_id FROM tasks AS t WHERE show_in_calendar = 1 AND status != 2 ORDER BY date_start ASC' ) -> fetchAll( \PDO::FETCH_ASSOC );
-    foreach ( $tasks as $task ) {
+    $response = [ 'status' => 'error', 'msg' => 'Podczas zmiany daty wystąpił błąd. Proszę spróbować ponownie.' ];
 
-      $class = '';
-      if ( $task['status'] == 6 )
-        $class = 'ganttGrey';
-      elseif ( $task['status'] == 5 )
-        $class = 'ganttRed';
+    if ( \factory\Tasks::task_change_dates( \S::get( 'task_id' ), \S::get( 'date_start' ), \S::get( 'date_end' ) ) )
+      $response = [ 'status' => 'success', 'msg' => 'Data została zmieniona.' ];
 
-      $task_json['name'] = $task['client_id'] ? \factory\Crm::get_client_name( (int)$task['client_id'] ) : $task['name'];
-      $task_json['desc'] = 'Lorem ipsum dolor sit amet.';
-      $task_json['id'] = $task['id'];
-      $task_json['cssClass'] = 'redLabel';
-      $task_json['values'] = [
-        [
-          'from' => $task['date_start'] . ' 08:00',
-          'to' => $task['date_end'] . ' 16:00',
-          'label' => $task['name'],
-          'desc' => '',
-          'customClass' => $class,
-          'dataObj' => [
-            'task_id' => $task['id'],
-          ]
-        ]
-      ];
-      $data[] = $task_json;
-    }
-    header('Content-Type: application/json');
-
-    // Zwróć dane jako JSON
-    echo json_encode($data);
+    echo json_encode( $response );
     exit;
   }
 
@@ -195,6 +170,7 @@ class Tasks
       'show_tasks_bulk' => $show_tasks_bulk,
       'show_tasks_to_review' => $show_tasks_to_review,
       'users' => \factory\Users::users_list(),
+      'tasks_gantt' => \factory\Tasks::get_tasks_gantt(),
     ] );
   }