Andor composite lifecycle, alignment, arrival, and departure

[StarshipSuperjam]

Parent capability: andor.
Delivery slice: 15. Milestone: Boss and secrets.
Roadmap state: provisional. Executable now: no.

Atomic obligations

• BOSS-01.lifecycle

Blockers

• None
• Required delivery slices: slice 3, slice 6, slice 7, slice 11, slice 12, slice 13
• docs/spec/andor-genesis.md must be settled before this leaf may close.

Completion evidence

• Proof level: playable.
• Mechanics records/catalog rows: BOSS-01.
• Automated evidence must add roadmap-evidence: ID success and roadmap-evidence: ID failure markers for every obligation ID, attached to tests that exercise those paths.
• A gameplay-affecting PR stays draft until the operator approves the playable .sb3 at its tested commit.

Closure rule

This leaf closes only when all obligations above are delivered, every blocker is closed (or closes in the same PR), the required evidence is present, and the repository closure check passes.