Adds the OBJSPEC-scoped sibling of S2F41 with extended per-parameter
ack shape (CPACK + CEPACK). Wire:
S2F49 body <DATAID OBJSPEC RCMD <L,n <CPNAME CPVAL>>>
S2F50 body <HCACK <L,n <CPNAME CPACK CEPACK>>>
Server delegates to the existing HostCommandRegistry, logs OBJSPEC for
audit, and currently returns empty cpacks (all-OK). Per-parameter
failures will be wired when the command registry grows CEPACK-level
validation; this commit is the catalog + dispatch scaffolding.
secsgem-py defines these in its catalog but never dispatches them; this
puts the C++ port marginally ahead on remote-command coverage.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
raphael
fafbd2abd2