/flag-cleanup Run the full feature-flag cleanup workflow: 1. Scan for stale flags (older than 90 days, used in ≤2 places) 2. For each candidate, identify the introducing PR/issue and current owner 3. Generate a removal plan grouped by owner 4. Run kill-switch audit against the flag-doc registry 5. Output a markdown report ready to share with the team Usage Implementation This command dispatches to the skill: Output A markdown report with: - Stale flag candidates grouped by owner, with introducing commit links - Undocumented flags that fail the kill-switch audit - Incomplete documentation (mis…