Remove duplicate checklists functionality

Checklists were duplicating subtasks functionality. Removed:
- Migration for task_checklists table
- TaskChecklistModel
- Checklist methods from TaskService
- Checklist routes from Routes.php
- Checklist controller methods
- Checklist UI section from show.twig
- Checklist JavaScript functions

Updated TASKS_MODULE_ROADMAP.md

app/Modules/Tasks/Views/tasks/show.twig

@@ -140,51 +140,6 @@
             </div>
         </div>
 
-        {# Чек-лист #}
-        <div class="card border-0 shadow-sm mb-4">
-            <div class="card-header bg-light d-flex justify-content-between align-items-center">
-                <h5 class="mb-0">
-                    <i class="fa-solid fa-check-square me-2"></i>Чек-лист
-                    {% if task.checklists_count %}
-                        <span class="badge bg-secondary ms-2">{{ task.checklists_completed }}/{{ task.checklists_count }}</span>
-                    {% endif %}
-                </h5>
-            </div>
-            <div class="card-body">
-                {% if task.checklists %}
-                    <ul class="list-group list-group-flush mb-3" id="checklists-list">
-                        {% for checklist in task.checklists %}
-                            <li class="list-group-item d-flex align-items-center gap-2" data-checklist-id="{{ checklist.id }}">
-                                <input type="checkbox" class="form-check-input checklist-checkbox"
-                                       {% if checklist.is_completed %}checked{% endif %}
-                                       onchange="toggleChecklistItem({{ task.id }}, {{ checklist.id }})">
-                                <span class="{% if checklist.is_completed %}text-muted text-decoration-line-through{% endif %} flex-grow-1">
-                                    {{ checklist.title }}
-                                </span>
-                                <button type="button" class="btn btn-outline-danger btn-sm"
-                                        onclick="deleteChecklistItem({{ task.id }}, {{ checklist.id }})"
-                                        title="Удалить">
-                                    <i class="fa-solid fa-times"></i>
-                                </button>
-                            </li>
-                        {% endfor %}
-                    </ul>
-                {% else %}
-                    <p class="text-muted text-center mb-3">Чек-лист пуст</p>
-                {% endif %}
-
-                <form action="{{ base_url('/tasks/' ~ task.id ~ '/checklists') }}" method="post"
-                      class="d-flex gap-2 checklist-form" onsubmit="addChecklistItem(event, {{ task.id }})">
-                    {{ csrf_field()|raw }}
-                    <input type="text" name="title" class="form-control"
-                           placeholder="Добавить пункт чек-листа..." required>
-                    <button type="submit" class="btn btn-primary">
-                        <i class="fa-solid fa-plus"></i>
-                    </button>
-                </form>
-            </div>
-        </div>
-
         {# Комментарии #}
         <div class="card border-0 shadow-sm">
             <div class="card-header bg-light">
@@ -359,83 +314,5 @@ function deleteSubtask(taskId, subtaskId) {
         console.error('Error:', error);
     });
 }
-
-// ========== Чек-листы ==========
-
-function addChecklistItem(event, taskId) {
-    event.preventDefault();
-    const form = event.target;
-    const input = form.querySelector('input[name="title"]');
-    const title = input.value.trim();
-
-    if (!title) return;
-
-    fetch(`/tasks/${taskId}/checklists`, {
-        method: 'POST',
-        headers: {
-            'Content-Type': 'application/x-www-form-urlencoded',
-            'X-Requested-With': 'XMLHttpRequest'
-        },
-        body: 'title=' + encodeURIComponent(title)
-    })
-    .then(response => response.json())
-    .then(data => {
-        if (data.success) {
-            location.reload();
-        } else {
-            alert(data.error || 'Ошибка при добавлении пункта чек-листа');
-        }
-    })
-    .catch(error => {
-        console.error('Error:', error);
-        alert('Ошибка при добавлении пункта чек-листа');
-    });
-}
-
-function toggleChecklistItem(taskId, checklistId) {
-    fetch(`/tasks/${taskId}/checklists/${checklistId}/toggle`, {
-        method: 'POST',
-        headers: {
-            'Content-Type': 'application/x-www-form-urlencoded',
-            'X-Requested-With': 'XMLHttpRequest'
-        },
-        body: ''
-    })
-    .then(response => response.json())
-    .then(data => {
-        if (!data.success) {
-            alert(data.error || 'Ошибка');
-        } else {
-            location.reload();
-        }
-    })
-    .catch(error => {
-        console.error('Error:', error);
-    });
-}
-
-function deleteChecklistItem(taskId, checklistId) {
-    if (!confirm('Удалить пункт чек-листа?')) return;
-
-    fetch(`/tasks/${taskId}/checklists/${checklistId}/delete`, {
-        method: 'POST',
-        headers: {
-            'Content-Type': 'application/x-www-form-urlencoded',
-            'X-Requested-With': 'XMLHttpRequest'
-        },
-        body: ''
-    })
-    .then(response => response.json())
-    .then(data => {
-        if (!data.success) {
-            alert(data.error || 'Ошибка');
-        } else {
-            location.reload();
-        }
-    })
-    .catch(error => {
-        console.error('Error:', error);
-    });
-}
 </script>
 {% endblock %}