fix: replace atm gh with direct gh commands + quality-mgr hardening

[randlee]

Summary

Replace all atm gh commands with direct gh pr / gh run commands and strengthen quality-mgr language to match atm-core rigor.

Changes

Agent Files

• quality-mgr.md:

  • Added evidence staleness rule (re-resolve file:line before citing)
  • Strengthened structured JSON passthrough language (triage_records, round_limit, changed_files, duplicate_sweep_symbols, carry_forward_findings_json)
  • Made PR publishing step MANDATORY for audit trail
  • Replaced atm gh CI monitoring with gh pr/gh run commands

• scrum-master.md: Replaced atm gh CI monitoring with gh pr commands

• publisher.md: Updated monitoring guidance to use gh pr/gh run directly

Skill Files

• quality-management-gh/SKILL.md: Replaced atm gh preference list with standard GitHub CLI commands

• sprint-report/SKILL.md: Replaced atm gh pr list with gh pr list --json

Files Modified

• .claude/agents/quality-mgr.md (27 lines changed)
• .claude/agents/scrum-master.md (7 lines changed)
• .claude/agents/publisher.md (6 lines changed)
• .claude/skills/quality-management-gh/SKILL.md (16 lines changed)
• .claude/skills/sprint-report/SKILL.md (8 lines changed)

Total: 5 files, 36 insertions, 28 deletions

Notes

• No new agents added; sc-compose reviewer set unchanged
• All atm gh references removed
• Quality-mgr language now includes evidence staleness rule and mandatory PR publishing