Strengthen persona-driven workflow guidance for recurring reports and compliance audits

[Copilot]

Persona exploration found strong trigger/tool/security choices, but recurring report lifecycle guidance and compliance cadence specifics were inconsistent. This PR tightens those gaps with compact, prescriptive additions in the authoring docs.

• Recurring report lifecycle defaults (.github/aw/create-agentic-workflow.md)

  • Added a compact checklist for report workflows:
    • close-older-issues default behavior
    • explicit report window requirement
    • required grouping dimensions
    • stable dedup key + duplicate search before issue creation

• Concrete compliance-audit drift scenario (.github/aw/triggers.md)

  • Added a material-drift example with:
    • preferred cadence (schedule: daily on weekdays + workflow_dispatch)
    • explicit drift definition (control-state changes affecting posture)
    • stable drift key pattern and issue lifecycle behavior
    • noop requirement when no drift exists in-window

• Non-technical persona coverage (.github/aw/github-agentic-workflows.md)

  • Added a Program Management / stakeholder digest example that standardizes:
    • trigger pairing for recurring + manual runs
    • default output route (create-issue)
    • required window/grouping/dedup fields
    • recurring issue lifecycle (close-older-issues) and empty-window noop

- [ ] enable `close-older-issues: true` for issue-based recurring reports
- [ ] define one explicit report window
- [ ] define grouping dimensions that match audience decisions
- [ ] derive one stable dedup key per scope and window

[github-actions]

🤖 PR Triage — Run §28715668077

Field	Value
Category	docs
Risk	🟢 Low
Score	32/100
Impact	16/50
Urgency	10/30
Quality	6/20
Action	defer

Strengthens persona-driven workflow guidance. +22/-0 markdown in .github/aw/. Low urgency docs update. Defer until sprint.

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