test(ghidra): group expanded suites by their contracts

Split result-envelope and completeness checks, and Windows invocation and
runtime checks, into named describe groups within the existing lint limit.
Preserve every test, fixture, assertion and platform prerequisite.

Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>

src/ghidra/GhidraFunctionValues.test.ts

@@ -117,7 +117,9 @@ describe("Ghidra function-analysis result values", () => {
       });
     },
   );
+});
 
+describe("Ghidra reference and value-flow completeness", () => {
   it.each(["reference_kinds_available", "unresolved_calls"])(
     "rejects omitted %s instead of inventing complete reference observations",
     (field) => {

tests/boundary/providers/ghidra/ghidraLauncher.test.ts

@@ -486,7 +486,9 @@ describe("Ghidra Windows launcher", () => {
       }),
     ).toThrow(/metacharacters/u);
   });
+});
 
+describe("Ghidra Windows launcher runtime", () => {
   it.skipIf(process.platform !== "win32").each([
     {
       properties: