Ensure essential handlers are subscribed in test env.

Author: dysk

config/initializers/rails_event_store.rb

@@ -1,6 +1,24 @@
 Rails.configuration.to_prepare do
   Rails.configuration.event_store = RailsEventStore::Client.new.tap do |client|
-    next if Rails.env.test?
+    if Rails.env.test?
+      # In test environment, only add essential subscribers for compatibility
+      client.subscribe(-> (event) { ReadModel::GameReadModel.handle_game_hosted(event) }, to: [Game::GameHosted])
+      client.subscribe(
+        -> (event) do
+          ReadModel::GameReadModelUpdater.new(logger: Rails.logger).call(event)
+        end,
+        to: [
+          Game::GameHosted,
+          Game::PlayerRegistered,
+          Game::PlayerUnregistered,
+          Game::NewTurnStarted,
+          Game::PlayerEndedTurn,
+          Game::PlayerEndTurnCancelled,
+          Game::PlayerConnected
+        ]
+      )
+      next
+    end
     client.subscribe(-> (event) { ReadModel::GameReadModel.handle_game_hosted(event) }, to: [Game::GameHosted])
     client.subscribe(
       -> (event) do