SDK-10: mesh-sdk's manifest declares its Go package beside lib, each in series 0.1 (design 32, design 51)

The Go build module publishes mesh-sdk's go through the Go seat; the paths word is known to every judge since R4e. The
own-manifest test now holds the two packages.

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig

module.json

@@ -4,7 +4,8 @@
   "slug": "sdk",
   "build": {
     "artifacts": [
-      { "name": "lib", "kind": "package", "language": "typescript" }
+      { "name": "lib", "kind": "package", "language": "typescript", "series": "0.1" },
+      { "name": "go", "kind": "package", "language": "go", "paths": ["go"], "series": "0.1" }
     ]
   },
   "resources": []