roadmap#16: mission split + graveyard continuity-via-infrastructure

[arcaven]

v2-stands per v3 M5. Track B (machine-paid, parallel) per bd aae-orc-b0kp.

[arcaven]

Historical primary source — docs/kos-roadmap.md (v1), Issue 16 (retrofitted 2026-07-04 via kos#82).

Supersession chain: v1 → v2 → v3 → v3.1. This comment quotes the ORIGINAL text for provenance and intent only — it does not reinstate anything v3/v3.1 changed. Where this text and the issue body disagree, the issue body (v3/v3.1-derived) governs scope; the original governs what the author originally meant.

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