feat(agent): Add job cleanup playbook task in update_agent

[20vikash]

Description
This calls Agent's agent-db-cleanup cli to setup DB cleanup crontab.

Related PR
Agent

[greptile-apps]

Greptile Summary

This PR adds a new Ansible task to the update_agent playbook that runs agent setup agent-db-cleanup to register a DB cleanup crontab for the frappe user. The task follows the same pattern as the other agent setup tasks already present in the file (become: yes, become_user: frappe, fixed binary path, chdir: /home/frappe/agent).

• New task is placed logically after the "Update Agent" step and before log-ownership cleanup.
• The agent CLI (/home/frappe/agent/env/bin/agent setup agent-db-cleanup) is expected to be idempotent; repeated playbook runs should not create duplicate cron entries, consistent with how other agent setup sub-commands work in this codebase.

Confidence Score: 5/5

Safe to merge — the change is a single Ansible task that follows the existing patterns in the file exactly.

The new task runs agent setup agent-db-cleanup using the same binary path, working directory, and privilege escalation as every other agent setup step in this playbook. No variables are interpolated into the command, so there is no injection surface.

No files require special attention.

Important Files Changed

Filename	Overview
press/playbooks/roles/update_agent/tasks/main.yml	Adds a single Ansible task to run agent setup agent-db-cleanup during agent updates, registering a DB cleanup crontab for the frappe user.

Sequence Diagram

sequenceDiagram
    participant Ansible
    participant AgentCLI as Agent CLI
    participant Cron as frappe crontab

    Ansible->>AgentCLI: "agent update {{ agent_update_args }}"
    AgentCLI-->>Ansible: done
    Ansible->>AgentCLI: agent setup agent-db-cleanup
    AgentCLI->>Cron: Register DB cleanup cron job
    Cron-->>AgentCLI: crontab updated
    AgentCLI-->>Ansible: done
    Ansible->>Ansible: Set log ownership (frappe:frappe)
    Ansible->>Ansible: Ensure Agent processes started (supervisorctl)

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