feat(dashboard): add sidebar, navbar, dynamic routes, summary & trend API, NIPH theme

dashboard/app/Models/Surveillance.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Surveillance extends Model
+{
+    protected $table = 'surveillances';
+    public $timestamps = false;
+
+    protected $fillable = [
+        'code',
+        'name_en',
+        'name_kh',
+        'start_date',
+        'end_date'
+    ];
+
+    public function cases()
+    {
+        return $this->hasMany(SurveillanceCase::class, 'surveillance_id');
+    }
+}