add filtering/sorting params to collection characters endpoint

app/controllers/api/v1/collection_characters_controller.rb

@@ -21,6 +21,9 @@ module Api
         @collection_characters = @collection_characters.by_proficiency(params[:proficiency]) if params[:proficiency]
         @collection_characters = @collection_characters.by_gender(params[:gender]) if params[:gender]
 
+        # Apply sorting
+        @collection_characters = @collection_characters.sorted_by(params[:sort])
+
         # Apply pagination
         @collection_characters = @collection_characters.paginate(page: params[:page], per_page: params[:limit] || 50)
 

app/controllers/api/v1/search_controller.rb

@@ -55,6 +55,7 @@ module Api
       def characters
         filters = search_params[:filters]
         locale = search_params[:locale] || 'en'
+        exclude = search_params[:exclude]
         conditions = {}
 
         if filters
@@ -88,6 +89,11 @@ module Api
           characters = characters.where('series && ARRAY[?]::integer[]', series_values)
         end
 
+        # Exclude already-owned characters (for collection modal)
+        if exclude.present? && exclude.any?
+          characters = characters.where.not(id: exclude)
+        end
+
         count = characters.length
         paginated = characters.paginate(page: search_params[:page], per_page: search_page_size)