Merges the user- and org-PLAYBOOK.md branches in writeDocumentGuarded: match both paths up front, reject append once, narrow mode to 'upsert' | 'patch', then dispatch to the respective XML writer. Removes the duplicated append guard and the non-null-assertion drift between the two branches. No behavior change , pure refactor.

🤖 Generated with Claude Code

Greptile Summary

This refactor consolidates user and organization PLAYBOOK.md handling without changing dispatch behavior.

• Matches both supported playbook path forms before entering one shared branch.
• Rejects unsupported append operations once and narrows the remaining mode before dispatch.
• Preserves user and organization XML-writer routing.

Confidence Score: 5/5

The PR appears safe to merge with no actionable defects identified.

The user and organization path patterns are mutually exclusive, the organization match is guaranteed non-null at its use site, and append rejection remains equivalent for both routes.

Important Files Changed

_{Reviews (1): Last reviewed commit: "refactor(playbook): merge user/org PLAYB..." | Re-trigger Greptile}