added migration seeders models and test script

app/Models/RecurringTaskModel.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace App\Models;
+
+use CodeIgniter\Model;
+
+class RecurringTaskModel extends Model
+{
+    use LoggableTrait;
+
+    protected $table = 'recurring_tasks';
+    protected $primaryKey = 'id';
+    protected $useAutoIncrement = false;
+    protected $returnType = 'array';
+    protected $useSoftDeletes = false;
+    protected $allowedFields = [
+        'id',
+        'user_id',
+        'title',
+        'description',
+        'schedule',
+        'custom_days',
+        'favorite',
+        'created_at',
+        'updated_at',
+    ];
+
+    protected $useTimestamps = true;
+    protected $createdField = 'created_at';
+    protected $updatedField = 'updated_at';
+
+    protected $validationRules = [
+        'user_id' => 'required',
+        'title' => 'required|max_length[255]',
+        'schedule' => 'required|in_list[daily,weekly,monthly,custom]',
+    ];
+
+    protected function getEntityType(): string
+    {
+        return 'recurring_task';
+    }
+
+    // Get recurring tasks with categories
+    public function getWithCategories($taskId = null)
+    {
+        $builder = $this->select('recurring_tasks.*, GROUP_CONCAT(categories.name) as category_names')
+                        ->join('recurring_task_categories', 'recurring_tasks.id = recurring_task_categories.recurring_task_id', 'left')
+                        ->join('categories', 'recurring_task_categories.category_id = categories.id', 'left')
+                        ->groupBy('recurring_tasks.id');
+
+        if ($taskId) {
+            $builder->where('recurring_tasks.id', $taskId);
+        }
+
+        return $builder->get()->getResultArray();
+    }
+
+    // Get recurring tasks by user with categories
+    public function getByUserWithCategories($userId)
+    {
+        return $this->select('recurring_tasks.*, GROUP_CONCAT(categories.name) as category_names')
+                    ->join('recurring_task_categories', 'recurring_tasks.id = recurring_task_categories.recurring_task_id', 'left')
+                    ->join('categories', 'recurring_task_categories.category_id = categories.id', 'left')
+                    ->where('recurring_tasks.user_id', $userId)
+                    ->groupBy('recurring_tasks.id')
+                    ->get()
+                    ->getResultArray();
+    }
+}