test: strengthen and prune audited test coverage (#8573)

* test: strengthen and prune audited test coverage

* test: require delivered DeepSeek skill instructions

* test: keep schema fixture types private

* test: verify Gemini receives skill instructions

* test: bind Qwen skill evidence to its tool result

* test: report NativeAOT verifier checks precisely

* fix: verify Ghidra cleanup paths reliably

* fix: verify Command Code skill activation

* test: tighten cleanup and fixture checks

* test: verify packet capture evidence is recorded

* fix: report HTTP3 capture provenance accurately

* test: preserve resource coverage through MCP

* test: prune repeated assertions and retain cancellation identity

* fix: validate client verifier fixture paths

* test: skip Copilot verifier cases on Windows

* test: keep verifier setup target relative

src/reference/ReferenceSourceReader.test.ts

@@ -57,7 +57,7 @@ describe("unobserved internal symlink reconciliation", () => {
     ]);
   });
 
-  it("retains unreadable targets below the nearest failed directory", () => {
+  it("retains unreadable targets below a failed directory", () => {
     const entries: ReferenceSourceEntry[] = [
       internalLink("alias.txt", "hidden/target.txt"),
       failedDirectory("hidden", "io"),