Add translatable_private setting

app/models/account.rb

@@ -319,6 +319,10 @@ class Account < ApplicationRecord
     user&.setting_noai || (settings.present? && settings['noai']) || false
   end
 
+  def translatable_private?
+    user&.setting_translatable_private || (settings.present? && settings['translatable_private']) || false
+  end
+
   def public_statuses_count
     hide_statuses_count? ? 0 : statuses_count
   end
@@ -387,6 +391,7 @@ class Account < ApplicationRecord
       'emoji_reaction_must_following' => emoji_reactions_must_following?,
       'emoji_reaction_must_follower' => emoji_reactions_must_follower?,
       'emoji_reaction_deny_from_all' => emoji_reactions_deny_from_all?,
+      'translatable_private' => translatable_private?,
     }
     config = config.merge(settings) if settings.present?
     config

app/models/concerns/has_user_settings.rb

@@ -99,6 +99,10 @@ module HasUserSettings
     settings['noai']
   end
 
+  def setting_translatable_private
+    settings['translatable_private']
+  end
+
   def setting_hide_statuses_count
     settings['hide_statuses_count']
   end

app/models/user_settings.rb

@@ -12,6 +12,7 @@ class UserSettings
   setting :theme, default: -> { ::Setting.theme }
   setting :noindex, default: -> { ::Setting.noindex }
   setting :noai, default: true
+  setting :translatable_private, default: false
   setting :bio_markdown, default: false
   setting :discoverable_local, default: false
   setting :hide_statuses_count, default: false