Adds types

app/models/igdb_game.rb

@@ -1,4 +1,7 @@
+# typed: true
+
 class IgdbGame < ApplicationRecord
+  extend T::Sig
   # Associations
   has_many :igdb_match_suggestions
   has_many :games, foreign_key: :igdb_id, primary_key: :igdb_id
@@ -12,10 +15,12 @@ class IgdbGame < ApplicationRecord
   scope :recent, -> { order(last_synced_at: :desc) }
 
   # Instance methods
+  sig { void }
   def increment_match_count!
     increment!(:match_count)
   end
 
+  sig { params(size: String).returns(T.nilable(String)) }
   def cover_image_url(size = "cover_big")
     return nil unless cover_url.present?
     # IGDB uses image IDs like "co1234"