Round 2 T2, T5: mesh-wireguard and route-proxy end G with their merge-base test counts; roles in the test

The two tests G added fold into existing ones as subtests (design 47 G §626); route-proxy's provider test names
a role, not a node (T5).

Builds: design 47 G §626, A-306; review round 2 findings T2, T5
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h

modules/mesh-wireguard/go/overlay/seat_test.go

@@ -73,34 +73,33 @@ func TestEveryProvisionTheModuleOffersSaysItsCredentialForm(t *testing.T) {
 			t.Errorf("%s offers credential %+v: the form is none", o.Name, o.Credential)
 		}
 	}
-}
-
-// Design 47 G §411, §339, §341: no artifact of this repository's manifests keeps a `series` (one version per module), and
-// the generated TypeScript contract is `index.js` with its `index.d.ts`, with no source for a build of its own.
-func TestNoArtifactKeepsASeriesAndTheTypeScriptContractIsJavaScript(t *testing.T) {
-	for _, path := range []string{"../../module.json", "../../../mesh-connectivity-contracts/module.json"} {
-		file, err := os.ReadFile(path)
-		if err != nil {
-			t.Fatal(err)
-		}
-		var m struct {
-			Build struct {
-				Artifacts []map[string]any `json:"artifacts"`
-			} `json:"build"`
-		}
-		if err := json.Unmarshal(file, &m); err != nil {
-			t.Fatal(err)
-		}
-		for _, a := range m.Build.Artifacts {
-			if _, ok := a["series"]; ok {
-				t.Errorf("%s: the artifact %v keeps a series, which the manifest validator refuses (§411)", path, a["name"])
+	// Design 47 G §411, §339, §341: no artifact of this repository's manifests keeps a `series` (one version per module), and
+	// the generated TypeScript contract is `index.js` with its `index.d.ts`, with no source for a build of its own.
+	t.Run("NoArtifactKeepsASeriesAndTheTypeScriptContractIsJavaScript", func(t *testing.T) {
+		for _, path := range []string{"../../module.json", "../../../mesh-connectivity-contracts/module.json"} {
+			file, err := os.ReadFile(path)
+			if err != nil {
+				t.Fatal(err)
+			}
+			var m struct {
+				Build struct {
+					Artifacts []map[string]any `json:"artifacts"`
+				} `json:"build"`
+			}
+			if err := json.Unmarshal(file, &m); err != nil {
+				t.Fatal(err)
+			}
+			for _, a := range m.Build.Artifacts {
+				if _, ok := a["series"]; ok {
+					t.Errorf("%s: the artifact %v keeps a series, which the manifest validator refuses (§411)", path, a["name"])
+				}
 			}
 		}
-	}
-	dir := "../../../mesh-connectivity-contracts/ts/seats/theprivatenetwork/"
-	for file, want := range map[string]bool{"index.js": true, "index.d.ts": true, "src/index.ts": false, "tsconfig.json": false} {
-		if _, err := os.Stat(dir + file); (err == nil) != want {
-			t.Errorf("%s: present %v, want %v (§341)", file, err == nil, want)
+		dir := "../../../mesh-connectivity-contracts/ts/seats/theprivatenetwork/"
+		for file, want := range map[string]bool{"index.js": true, "index.d.ts": true, "src/index.ts": false, "tsconfig.json": false} {
+			if _, err := os.Stat(dir + file); (err == nil) != want {
+				t.Errorf("%s: present %v, want %v (§341)", file, err == nil, want)
+			}
 		}
-	}
+	})
 }