Add OIDC fixes, add prefered_username, add application-user claims

db/migrate/20251122235519_add_sid_to_oidc_user_consent.rb

@@ -0,0 +1,15 @@
+class AddSidToOidcUserConsent < ActiveRecord::Migration[8.1]
+  def change
+    add_column :oidc_user_consents, :sid, :string
+    add_index :oidc_user_consents, :sid
+
+    # Generate UUIDs for existing consent records
+    reversible do |dir|
+      dir.up do
+        OidcUserConsent.where(sid: nil).find_each do |consent|
+          consent.update_column(:sid, SecureRandom.uuid)
+        end
+      end
+    end
+  end
+end