Resource/prompt test examples for Go, Rust, Java, Kotlin, Swift, C#.
Each registers hello tool, 3 resources, and greet prompt.
Conformance runner updated with all 10 implementations.

Local results: Node 13/13, Python 13/13, Ruby 13/13, Go 13/13.
Remaining 6 need Docker builds.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>