"Fleet deployed" shows as user message

Not sure how we are supposed to handle this, but there is more code with special handling for /fleet than I expected. In events.jsonl I see this

```
{"type":"user.message","data":{"content":"Fleet deployed","transformedContent":"2026-09-02T11:02:45.743-07:00\n\nYou are now in fleet mode. Dispatch sub-agents (via the task tool) in parallel to do the work.\n\n**Getting Started**\n1. Check for existing todos: `SELECT id, title, status FROM todos WHERE status != 'done'`\n2. If todos exist, dispatch them in parallel (respecting dependencies)\n3. If no todos exist, help decompose the work into todos first. Try to structure todos to minimize dependencies and maximize parallel execution.\n\n**Parallel Execution**\n- Dispatch independent todos simultaneously\n- Never dispatch just a single background subagent. Prefer one sync subagent, or better, prefer to efficiently dispatch multiple background subagents in the same turn.\n- Only serialize todos with true dependencies (check todo_deps)\n- Query ready todos: `SELECT * FROM todos WHERE status = 'pending' AND id NOT IN (SELECT todo_id FROM todo_deps td JOIN todos t ON td.depends_on = t.id WHERE t.status != 'done')`\n\n**Sub-Agent Instructions**\nWhen dispatching a sub-agent, include these instructions in your prompt:\n1. Update the todo status when finished:\n - Success: `UPDATE todos SET status = 'done' WHERE id = ''`\n - Blocked: `UPDATE todos SET status = 'blocked' WHERE id = ''`\n2. Always return a response summarizing:\n - What was completed\n - Whether the todo is fully done or needs more work\n - Any blockers or questions that need resolution\n\n**Coordination**\n- After sub-agents return, check todo status in SQL (source of truth)\n- If status is still 'in_progress', the sub-agent may have failed to update - investigate\n- Use the sub-agent's response to understand context, but trust SQL for status\n\n**After Sub-Agents Complete**\n- Check the work done by sub-agents and validate the original request is fully satisfied\n- Ensure the work done by sub-agents (both implementation and testing) is sensible, robust, and handles edge cases, not just the happy path\n- If the original request is not fully satisfied, decompose remaining work into new todos and dispatch more sub-agents as needed\n\nNow proceed with the user's request using fleet mode.\n\n\nConsider updating plan.md to reflect current progress and next steps.\n\n\nAvailable tables: todos, todo_deps\n\n\n\nTodos: 18 done (18 total)\nUse sql tool to query ready todos and update status as you work.\n\n","supportedNativeDocumentMimeTypes":[],"agentMode":"autopilot","delivery":"queued","interactionId":"263c9f8e-e48b-4fc2-9bdc-604d8458b039","turnId":"0","parentAgentTaskId":"6d7ce70e-c967-4ec9-8a0b-ea9c4979dcf9"},"id":"058541b1-f51e-4cdf-8ac9-ff5160bf9d67","timestamp":"2026-09-02T18:02:45.744Z","parentId":"f841fceb-5121-4c40-9141-8cf729ca1b37"}
```