[EHotwagner]

Summary

• centralize command ownership and typed review/delivery lifecycle decisions
• require completion and candidate self-host receipts before shared-state transitions
• add always-reporting change-completeness CI and recoverable receiver-delivery receipts
• commit the complete SDD work model, observed evidence, verification, and ship-ready projections

Scope

The implementation directly changes the .github coordination authority. FS.GG framework and product workspaces are affected when they consume the shared coordination tooling or release workflows; ordinary product code is not changed.

Validation

• full Release test suites: 2,539 tests, 0 failures
• engine parity through shim: 605 assertions, 0 failures
• shim boundary parity: 86 assertions, 0 failures
• coordination guards: 32 assertions, 0 failures
• compatibility slices: 15 assertions, 0 failures
• change-completeness route: 119 focused tests, 0 failures
• SDD evidence: 39/39 observed obligations supported
• SDD verification: 78/78 findings ready
• SDD ship verdict: shipReady, 0 warnings, 0 blockers

Risk controls

• standalone done remains nonterminal; typed delivery --apply owns completion
• explicit candidate engines cannot write without stable-host verification
• release recovery verifies immutable journals and per-receiver receipts before promotion
• expensive engine CI remains path-sensitive behind an unfiltered required completeness context