feat: add bylaw management features including documents, legal authorities, subject categories, and nodes

app/Models/Volum.php

@@ -15,12 +15,14 @@ class Volum extends Model
 
     public function law()
     {
-        return  $this->belongsTo(Law::class);
+        return $this->belongsTo(Law::class);
     }
+
     public function book()
     {
         return $this->hasMany(Book::class);
     }
+
     public function sections()
     {
         return $this->hasMany(Section::class);