Mechanical rename produced by scripts/msd-rename.cjs: gsd/Gsd/GSD -> msd/Msd/MSD
across contents and paths, upstream package/repo coordinates -> @golem15/msd-core
and golem15com/msd-core. Deep links into upstream history, sibling upstream
packages, the GSD-2 import feature, CHANGELOG.md and .changeset/ are kept as-is.
Hand edits on top: MSD block-letter banner and logos, LICENSE copyright line,
package/plugin identity, regenerated lockfile, install-tree fixtures, derived
registries and benchmark baseline; migration checksum baseline re-locked
(MSD keeps its own install state, so no install had applied the old sums);
sort-order and regex-escaped expectations in tests adjusted.
* test(#3833): failing-first suite for the PR mergeability preflight
* chore(#3833): gate every PR compute lane behind a mergeability preflight
* fix(#3833): assert the preflight gate on parsed yaml and guard status-function if
* fix(#3833): run stub-backed cli tests in-process to avoid a spawnsync deadlock
* fix(#3833): fail the preflight open when its script is absent at the base sha
---------
Co-authored-by: sim <sim@local>
