feat: Initial commit for Saqel Platform architecture, backend, Docker, and documentation

backend/app/Models/AiReport.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class AiReport extends Model
+{
+    protected $fillable = ['user_id', 'type', 'payload', 'summary'];
+
+    protected function casts(): array
+    {
+        return [
+            'payload' => 'array',
+        ];
+    }
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+}