Massive refactor. Merge forward_auth into App, remove references to unimplemented OIDC federation and SAML features. Add group and user custom claims. Groups now allocate which apps a user can use

db/migrate/20251104015034_remove_role_related_tables_and_columns.rb

@@ -0,0 +1,15 @@
+class RemoveRoleRelatedTablesAndColumns < ActiveRecord::Migration[8.1]
+  def change
+    # Remove join table first (due to foreign keys)
+    drop_table :user_role_assignments if table_exists?(:user_role_assignments)
+
+    # Remove application_roles table
+    drop_table :application_roles if table_exists?(:application_roles)
+
+    # Remove role-related columns from applications
+    remove_column :applications, :role_mapping_mode, :string if column_exists?(:applications, :role_mapping_mode)
+    remove_column :applications, :role_prefix, :string if column_exists?(:applications, :role_prefix)
+    remove_column :applications, :role_claim_name, :string if column_exists?(:applications, :role_claim_name)
+    remove_column :applications, :managed_permissions, :json if column_exists?(:applications, :managed_permissions)
+  end
+end