Multi-target (group / fanout) contract, locked here so WP-1b does not repaint
it. The outer envelope's ok means the fanout orchestration succeeded and
produced a complete per-target result set — it is false only when fanout
fails before reliable per-target results exist (bad group selector, CDB
decrypt failure, global validation failure). Per-target success/failure lives
in data.targets[]; failed targets are output, not metadata.
Multi-target (group / fanout) contract, locked here so WP-1b does not repaint it. The outer envelope's
okmeans the fanout orchestration succeeded and produced a complete per-target result set — it isfalseonly when fanout fails before reliable per-target results exist (bad group selector, CDB decrypt failure, global validation failure). Per-target success/failure lives indata.targets[]; failed targets are output, not metadata.