Fixes#1957. All agents share one PAT, so `gh issue create --assignee @me`
resolves to the CEO. Today's "6 issues @me for 7 cycles" defect signal
turned out to be CEO-load misclassified as team-stagnation.
Translation rules:
- `--assignee @me` → `--label team:<role-slug>`
- `--reviewer @me` → dropped (review-bot scans labels, not requests)
- `--assignee user` (real user) → unchanged
role-slug derived from GIT_AUTHOR_NAME ("Molecule AI Core-BE" → "core-be").
The wrapper already handled the title-prefix + body-footer transforms;
these are just two more cases in the existing arg-walk loop.
Backward compat: any agent prompt that doesn't use @me passes through
unchanged. Agents don't need prompt updates — the wrapper is transparent.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>