docs(lab7): deploy QuickNotes to the Lab 5 VM via Ansible

[HNS2112]

Goal

Lab 7 submission: an idempotent Ansible playbook deploying QuickNotes to the Lab 5 VM as a systemd service, with idempotency proven, plus an ansible-pull GitOps loop that converges the VM from Git on a timer.

Changes

• ansible/ — playbook, inventory, systemd template, static binary
• ansible/ansible-pull.{service,timer} + inventory-local.ini — the GitOps loop
• evidence/lab7/ — all six PLAY RECAPs and service state
• submissions/lab7.md — report covering Tasks 1–2 and the bonus

Testing

First run ok=7 changed=7; service active (running); curl :18080/health returns 200 from the host.
Second run changed=0. One variable changed → only the template task changed and the handler fired.
--check --diff shows a one-line diff.
Bonus: push at 16:00:11 UTC → timer fired 16:03:18 → service restarted 16:03:36. 3m 25s, no host command.

Checklist

• Title is a clear sentence (≤ 70 chars)
• Commits are signed (git log --show-signature)
• submissions/labN.md updated