fix: align default runtime profile shapes

[intel352]

Summary

• aligns compute-core DefaultProviderRuntimeProfile with workflow-compute's known executor shapes
• preserves sandboxed command, container-build, service/node-service, and WASM profile differences
• prevents workflow-compute from regressing when it consumes compute-core DefaultProviderRuntimeContract

TDD

• red: TestDefaultProviderRuntimeProfileMatchesKnownExecutorShapes showed compute-core treated every executor as service OCI with node-data
• green: ported the known executor profile shape logic into compute-core

Verification

• GOWORK=off go test ./protocol -run 'TestDefaultProviderRuntimeProfileMatchesKnownExecutorShapes|TestDefaultProviderRuntimeContractBuildsRuntimeMatrix|TestProviderContractAcceptsBatchSandboxedOCI' -count=1
• GOWORK=off go test ./... -race -count=1
• git diff --check