Mark the legacy Role* constants in project_service.go as DEPRECATED.
They stay defined for one release because team_service.go still writes
the deprecated shadow column via legacyRoleFromResponsibility; follow-up
migration 058 (t-paliad-149) retires both the column and the constants.
Final grep sweep clean: no live-code call sites remaining for
project_teams.role outside of:
- the deprecated legacyRoleFromResponsibility mapper (intentional)
- team_service.go RETURNING + SELECT (reads the shadow column for
the JSON .role field still surfaced for the deprecation window)
- migrations 018/023/054/055 (historical, not modified)
Test suite green across all packages: auth, branding, calc, changelog,
handlers, offices, services. Frontend bun build clean (1723 i18n keys).
0b4de1c645