test: broaden workflow-compute alignment check

[intel352]

Summary

• update workflow-compute alignment script to run all internal adapter tests against a local workflow-compute replace
• refresh SPEC V19 now that provider catalog structs come from compute-core and the alignment gate should protect private runtime API drift

Verification

• GOWORK=off go test ./internal -count=1
• scripts/check-workflow-compute-alignment.sh /Users/jon/workspace/workflow-compute