add series= setter for weapon, include flags in series list

app/blueprints/api/v1/weapon_series_blueprint.rb

@@ -10,12 +10,10 @@ module Api
         }
       end
 
-      fields :slug, :order
+      fields :slug, :order, :extra, :element_changeable, :has_weapon_keys,
+             :has_awakening, :has_ax_skills
 
       view :full do
-        fields :extra, :element_changeable, :has_weapon_keys,
-               :has_awakening, :has_ax_skills
-
         field :weapon_count do |ws|
           ws.weapons.count
         end

app/models/weapon.rb

@@ -156,4 +156,14 @@ class Weapon < ApplicationRecord
   def series_slug
     weapon_series&.slug || SERIES_SLUGS[series]
   end
+
+  # Virtual attribute to set weapon_series by ID or slug
+  # Supports both UUID and slug lookup for flexibility
+  def series=(value)
+    return self.weapon_series = nil if value.blank?
+
+    # Try to find by ID first, then by slug
+    found = WeaponSeries.find_by(id: value) || WeaponSeries.find_by(slug: value)
+    self.weapon_series = found
+  end
 end