DEV: Display better output when inspecting service steps

This patch aims to improve the steps inspector output:
- The service class name is displayed at the top.
- Next to each step is displayed the time it took to run said step.
- Steps that didn’t run are hidden.
- `#inspect` automatically outputs the error when it is present.

plugins/chat/spec/fabricators/chat_fabricator.rb

@@ -114,7 +114,7 @@ Fabricator(:chat_message_with_service, class_name: "Chat::CreateMessage") do
     if result.failure?
       raise RSpec::Expectations::ExpectationNotMetError.new(
               "Service `#{resolved_class}` failed, see below for step details:\n\n" +
-                result.inspect_steps.inspect,
+                result.inspect_steps,
             )
     end
 

plugins/chat/spec/plugin_helper.rb

@@ -47,7 +47,7 @@ module ChatSystemHelpers
           },
         )
 
-      raise "#{creator.inspect_steps.inspect}\n\n#{creator.inspect_steps.error}" if creator.failure?
+      raise creator.inspect_steps if creator.failure?
       last_message = creator.message_instance
     end
 
@@ -64,7 +64,7 @@ end
 module ChatSpecHelpers
   def service_failed!(result)
     raise RSpec::Expectations::ExpectationNotMetError.new(
-            "Service failed, see below for step details:\n\n" + result.inspect_steps.inspect,
+            "Service failed, see below for step details:\n\n" + result.inspect_steps,
           )
   end