chore: refresh volunteer-science compute-core pin

[intel352]

Summary

• Bumps workflow-plugin-compute-core to v0.3.0.
• Removes stale old pseudo-version checksums from go.sum.
• Leaves no local replace directive.

Verification

• GOWORK=off go test ./... -count=1
• rg -n 'replace .workflow-plugin-compute-core|workflow-plugin-compute-core.=>' go.mod && exit 1 || true
• git diff --check

Generated by the implementing agent.

[intel352]

Autodev adversarial review

Find at least three things wrong with this code, even if they seem minor. I found fewer than three blocking issues, so here is the explicit bug-class scan.

Scope-vs-dispatch: PASS. Dispatch asked for a compute-core pin refresh to v0.3.0, no committed replace, and tests. Diff only changes go.mod/go.sum for that dependency.

Findings: none blocking.

Bug-class scan:

Class	Result	Note
Symmetry violations	Clean	Dependency update follows normal Go module shape.
Error swallowing	Clean	No code paths changed.
Comment-vs-code drift	Clean	No comments changed.
Test-name-vs-body mismatch	Clean	No tests changed.
Missing edge cases	Clean	Existing package/CI tests exercise compile and contract loading after the pin.
Concurrency bugs	Clean	No concurrent code changed.
Type-coercion silent failures	Clean	No encode/decode logic changed.
Dead/unreachable code	Clean	No code added.
Scope-vs-dispatch drift	Clean	Diff is limited to dependency metadata.
Shortcut / band-aid fix	Clean	This is the intended dependency pin update, not a symptom suppressor.
One-sided boundary wiring	Clean	Public module resolution is verified by package tests; no runtime boundary changed.
Test hermeticity / non-determinism	Clean	Verification uses local Go tests and GitHub CI.
Cross-platform / portability	Clean	No platform-sensitive code changed.
Vacuous assertion	Clean	No assertions changed.

Runtime-launch gate: not triggered beyond dependency version-skew audit; this is a library pin with no startup config or plugin-loader layout change. Existing tests and CI cover module compatibility.

Verdict: SHIP-IT - no Critical or Important findings; merge once checks are green.