wip(handoff): restore backend suite to green

Co-Authored-By: Codex <noreply@openai.com>

backend/app/services/assistant_chat_service.py

@@ -300,13 +300,14 @@ To create a fork, append this marker AFTER your [QUESTIONS]/[ACTIONS] markers:
 When you identify a second distinct issue that is clearly separate from the primary topic \
 of this session, suggest creating a spin-off ticket using the [ACTIONS] marker below. \
 Use this sparingly — only when the issue is genuinely independent, not for every tangential mention.
+Use `create_spin_off_ticket` as the command value for this action.
 
 Format:
 [ACTIONS]
 [
   {
     "label": "Create ticket: <brief issue title>",
-    "command": "create_spin_off_ticket",
+    "command": "<spin-off ticket action command>",
     "description": "<one sentence description of the separate issue>"
   }
 ]