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.

src/eval.cts

@@ -1,6 +1,6 @@
 /**
  * Deterministic eval scoring verb (#10).
- * Moves coverage/infra/overall arithmetic out of the gsd-eval-auditor prompt
+ * Moves coverage/infra/overall arithmetic out of the msd-eval-auditor prompt
  * into code, per the framework's code-delegation discipline.
  */
 
@@ -47,7 +47,7 @@ function cmdEvalScore(_cwd: string, args: string[], raw: boolean): void {
     !Number.isFinite(covered) || !Number.isFinite(total) ||
     infra.length !== 5
   ) {
-    process.stderr.write('Usage: gsd-tools query eval.score --covered N --total N --infra a,b,c,d,e (each ok|partial|missing)\n');
+    process.stderr.write('Usage: msd-tools query eval.score --covered N --total N --infra a,b,c,d,e (each ok|partial|missing)\n');
     process.exitCode = 1;
     return;
   }