Updating /troubleshoot rca to handle empty logs

As any job can be passed, if there is no jog log
we return an error message

EE: true

ee/lib/gitlab/llm/chain/tools/slash_command_tool.rb

@@ -17,6 +17,7 @@ def perform
             Gitlab::ErrorTracking.track_exception(e)
 
             Answer.error_answer(
+              error: e,
               context: context,
               error_code: "M4000"
             )

ee/lib/gitlab/llm/chain/tools/troubleshoot_job/executor.rb

@@ -77,6 +77,8 @@ def perform
                               elsif !job.failed?
                                 _('This command is used for troubleshooting jobs and can only be invoked from ' \
                                   'a failed job log page.')
+                              elsif !job.trace.exist?
+                                _('There is no job log to troubleshoot.')
                               end
 
               return error_with_message(error_message) if error_message

ee/spec/lib/gitlab/llm/chain/tools/troubleshoot_job/executor_spec.rb

@@ -129,6 +129,18 @@
 
           tool.execute
         end
+
+        context 'when log does not exist' do
+          before do
+            build.trace.erase!
+          end
+
+          it 'returns an error message' do
+            expect(tool.execute.content).to include(
+              "There is no job log to troubleshoot"
+            )
+          end
+        end
       end
 
       context 'when the feature is disabled' do

locale/gitlab.pot

@@ -53839,6 +53839,9 @@ msgstr ""
 msgid "There is no data available. Please change your selection."
 msgstr ""
+msgid "There is no job log to troubleshoot."
+msgstr ""
+
 msgid "There is no table data available."
 msgstr ""