Clean up auto tagging

slices/admin/validation/contracts/auto_tagging_contract.rb

@@ -0,0 +1,18 @@
+module Admin
+  module Validation
+    module Contracts
+      class AutoTaggingContract < Dry::Validation::Contract
+        params do
+          required(:title_contains).maybe(:string)
+          required(:body_contains).maybe(:string)
+          required(:tag_id).filled(:integer)
+        end
+
+        rule(:title_contains, :body_contains) do
+          key.failure("must provide a title or body term") if values[:title_contains].nil? && values[:body_contains].nil?
+          key.failure("must provide a title or body term") if !values[:title_contains].nil? && !values[:body_contains].nil?
+        end
+      end
+    end
+  end
+end