refactor: limit inner hits size and improve id type casting

Author: use-the-fork

src/Query/Grammar.php

@@ -548,7 +548,9 @@ public function _buildInnerHits($innerQuery)
             $innerHits['from'] = $innerQuery->offset;
         }
         if ($size = $innerQuery->getSetLimit()) {
-            $innerHits['size'] = $size;
+            # TODO: David should we handle this diffrently?
+            # Nested queries have a hard limit of 100 for inner_hits size
+            $innerHits['size'] = min($size, 100);
         }
 
         return $innerHits;

src/Relations/MorphToMany.php

@@ -251,7 +251,7 @@ public function attach($id, array $attributes = [], $touch = true)
             }
 
             // ID Must always be a string val
-            $id = Arr::wrap((string) $id);
+            $id = array_map(fn ($item) => (string) $item, Arr::wrap($id));
 
             $query = $this->newRelatedQuery();
             $query->whereIn($this->relatedKey, $id);