visual search fixes

spec/controllers/domain/posts_controller_spec.rb

@@ -161,7 +161,7 @@ RSpec.describe Domain::PostsController, type: :controller do
 
         # Mock the similar fingerprints search
         expect(controller.helpers).to receive(:find_similar_fingerprints).with(
-          mock_generate_fingerprints_results,
+          mock_generate_fingerprints_results.map(&:to_fingerprint_and_detail),
         ).and_return(mock_similar_fingerprints)
 
         # Mock the thumbnail data URI creation