fix: Cross-SDK Consistency Reviewer posts duplicate comments per commit (#983)

* Initial plan

* fix: prevent duplicate PR comments from Cross-SDK Consistency Reviewer

- Add tracker-id: sdk-consistency-review to identify workflow's comments
- Add hide-older-comments: true (with allowed-reasons: [outdated]) to
  add-comment safe-output so older comments are hidden before a new one
  is posted on each commit
- Move roles: all under on: block (codemod roles-to-on-roles, v0.10.0)
  required to compile with current gh aw v0.65.5
- Recompile both sdk-consistency-review.lock.yml and issue-triage.lock.yml
  (same roles migration needed for the latter to compile too)

Agent-Logs-Url: https://github.com/github/copilot-sdk/sessions/c025f75a-3f57-4fde-8282-0768b84d77cf

Co-authored-by: SteveSandersonMS <1101362+SteveSandersonMS@users.noreply.github.com>

* revert: restore .github/agents and .github/aw/schemas to pre-PR state

gh aw fix --write applied extra codemods beyond roles-to-on-roles:
- replaced old per-task agent files with a new dispatcher agent file
- deleted the agentic-workflow.json schema file (delete-schema-file codemod)

These changes are unrelated to the duplicate-comment fix. Restore all
four affected files to their original state.

Agent-Logs-Url: https://github.com/github/copilot-sdk/sessions/5d0ca850-de42-4b6d-b65e-dec287140b60

Co-authored-by: SteveSandersonMS <1101362+SteveSandersonMS@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: SteveSandersonMS <1101362+SteveSandersonMS@users.noreply.github.com>

Author: Copilot