Sol review sys1-review-r1 (changes 3):
- P1: project_system_types joins stack-release.sh COUNTED and the T45 LISTED pin; the
post-backup refusal and in-run recount tests now cover it.
- P2: the CLI channel admits project.system-types and project.system-types.set; a new test
drives both through run() and the real channel module (1/1 red without the fix).
- P2: the #811 migration-reader pin moves to 19 steps ending 3t-3u.
Adds the system-type kind with five modules (coding, creative-writing,
marketing, montage, business-management), an org-level enabled list
validated fail-closed, project selections limited to the org's list,
read verbs, and bus migration 3t-3u. REQ-SYS-2 toolsets are designed and
deferred: they need a role authority contract.