feat(cron): add agentId filtering to cron list (#77602)

Summary:
- This PR adds optional `agentId` filtering to `cron.list`, auto-fills it for agent tool calls, exposes `openclaw cron list --agent`, updates generated protocol clients, docs, changelog, tests, and prompt fixtures.
- Reproducibility: yes. The motivating behavior is source-reproducible on current main because cron tool, CLI, ... e list paths do not accept or apply `agentId`; the PR diff adds that path with focused regression coverage.

Automerge notes:
- Ran the ClawSweeper repair loop before final review.
- Included post-review commit in the final squash: chore: regenerate protocol schema after adding agentId to CronListParams
- Included post-review commit in the final squash: feat(cron): add agentId filtering to cron list

Validation:
- ClawSweeper review passed for head 35b692bc97.
- Required merge gates passed before the squash merge.

Prepared head SHA: 35b692bc97
Review: https://github.com/openclaw/openclaw/pull/77602#issuecomment-4375631700

Co-authored-by: zhanggttry <zhanggttry@163.com>
Co-authored-by: clawsweeper <274271284+clawsweeper[bot]@users.noreply.github.com>

docs/cli/cron.md

@@ -211,12 +211,15 @@ Manual run and inspection:
 
 ```bash
 openclaw cron list
+openclaw cron list --agent ops
 openclaw cron show <job-id>
 openclaw cron run <job-id>
 openclaw cron run <job-id> --due
 openclaw cron runs --id <job-id> --limit 50
 ```
 
+`openclaw cron list` shows all matching jobs by default. Pass `--agent <id>` to show only jobs whose effective normalized agent id matches; jobs without a stored agent id count as the configured default agent.
+
 `cron runs` entries include delivery diagnostics with the intended cron target, the resolved target, message-tool sends, fallback use, and delivered state.
 
 Agent and session retargeting: