Resolve workload artifact aliases

[chubes4]

Summary

• Resolve wordpress.collect-workload-result requests through workload/source-entry aliases when a typed workload emits one unambiguous payload.
• Preserve strict collection semantics: ambiguous alias matches still fail instead of guessing.
• Return the source-entry alias in the normalized workload artifact map so downstream callers can collect by workload name.

Testing

• npm run test:nested-fuzz-suite-recipe-command
• npm run test:playground-fuzz-suite-public
• npm run build

AI assistance

• AI assistance: Yes
• Tool(s): openai/gpt-5.5 via OpenCode
• Used for: Diagnosed the WooCommerce Lab workload alias failure, implemented the upstream alias resolution, and ran targeted verification.