Change bot mention trigger from @bartender to @codebot in workflows

.gitea/workflows/ai-comment-reply.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   ai-reply:
     runs-on: ubuntu-latest
-    if: contains(github.event.comment.body, '@bartender') # <-- Change this to your bot name
+    if: contains(github.event.comment.body, '@codebot') # <-- Change this to your bot name
     steps:
       - uses: actions/checkout@v4