This is the write-surface twin of a problem the read side already solved: planning-artifact reads were re-pointed to the primary surface via the kind-aware MissionArtifactKind partition (#2106/#2101), ...

Decisive field evidence: under the strict hard-fail, mission 01KVFTFV was forced to flatten (drop coordination_branch) just to make progress — i.e. the ADR's own recovery path (a) became the routine ...