refactor: hard-fork GSD -> MSD (Make Software Done)

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.

scripts/lib/macos-conformance-tier.generated.cjs

@@ -81,13 +81,6 @@ module.exports = {
   "tests/git-base-branch.test.cjs",
   "tests/graphify-query.test.cjs",
   "tests/graphify-visualization.test.cjs",
-  "tests/gsd-secret-read-guard.test.cjs",
-  "tests/gsd-settings-advanced.test.cjs",
-  "tests/gsd-statusline.test.cjs",
-  "tests/gsd-tools-path-refs.test.cjs",
-  "tests/gsd-validate-commit-crash-policy.test.cjs",
-  "tests/gsd-validate-commit-sigpipe.test.cjs",
-  "tests/gsd-write-guard.test.cjs",
   "tests/health-diagnostic-rules/worktree-health.test.cjs",
   "tests/health-diagnostic.test.cjs",
   "tests/helpers-cleanup.test.cjs",
@@ -107,7 +100,7 @@ module.exports = {
   "tests/installer-migration-config-root-marker.test.cjs",
   "tests/installer-migration-pi-retire-hooks-dir.test.cjs",
   "tests/installer-migration-prune-stale-pristine.test.cjs",
-  "tests/installer-migration-rename-gsd-core.test.cjs",
+  "tests/installer-migration-rename-msd-core.test.cjs",
   "tests/installer-migrations.test.cjs",
   "tests/intel.test.cjs",
   "tests/inventory-nested-families.test.cjs",
@@ -124,6 +117,13 @@ module.exports = {
   "tests/milestone-window-single-owner.test.cjs",
   "tests/model-catalog.unit.test.cjs",
   "tests/model-resolver.test.cjs",
+  "tests/msd-secret-read-guard.test.cjs",
+  "tests/msd-settings-advanced.test.cjs",
+  "tests/msd-statusline.test.cjs",
+  "tests/msd-tools-path-refs.test.cjs",
+  "tests/msd-validate-commit-crash-policy.test.cjs",
+  "tests/msd-validate-commit-sigpipe.test.cjs",
+  "tests/msd-write-guard.test.cjs",
   "tests/no-exact-case-env-access.rule.test.cjs",
   "tests/no-pending-3212-markers.test.cjs",
   "tests/no-phantom-issue-refs.test.cjs",