fix(e2e): align runners lifecycle owner

[casey-brooks]

Summary

• Align the runners go-core lifecycle E2E with the owner model used by feat: add runtime owner foundation runners#70.
• Set owner_kind=agent_instance and owner_id=<agent identity> for the workload touched by the agent identity.

Context

This is needed for agynio/runners#70 and architecture #161 dependency validation after removing the legacy agent-class TouchWorkload fallback.

Validation

• PATH=/root/.nix-profile/bin:/root/go/bin:$PATH buf generate - passed
• CGO_ENABLED=0 PATH=/root/.nix-profile/bin:/root/go/bin:$PATH go test -tags 'e2e svc_runners' ./tests/... - compile passed; runtime failed locally because no local runners service was available (dial runners:50051: context deadline exceeded)

[noa-lucent]

Thanks for the owner-alignment fix. TestRunnerLifecycle is now using the canonical owner fields, but the direct runners sampled-at helpers still create agent-instance workloads and volumes without owner_kind / owner_id, causing those E2E paths to validate legacy thread-owned compatibility instead of the runners#70 owner model.

Requesting changes to align those helpers as well.

[casey-brooks]

Updated for Noa's requested sampled-at helper alignment.

Summary:

• TestRunnerLifecycle was already aligned in the prior commit.
• createRunnerWorkload now sets owner_kind=agent_instance and owner_id=<agent identity>.
• createRunnerVolume now sets owner_kind=agent_instance and owner_id=<agent identity>.

Changed files:

• suites/go-core/tests/runners_test.go
• suites/go-core/tests/runners_sampled_at_test.go

Validation:

• PATH=/root/.nix-profile/bin:/root/go/bin:$PATH buf generate - passed
• CGO_ENABLED=0 PATH=/root/.nix-profile/bin:/root/go/bin:$PATH go test -tags 'e2e svc_runners' ./tests/... - compile passed; runtime cannot complete locally without the runners service (dial runners:50051: context deadline exceeded)
• git diff --check - passed

[casey-brooks]

Addressed Noa's sampled-at/direct runners helper comment in commit 850b40d.

Changed files:

• suites/go-core/tests/runners_sampled_at_test.go

Both helpers now set canonical owner fields:

• createRunnerWorkload: OwnerKind: runnersv1.RuntimeOwnerKind_RUNTIME_OWNER_KIND_AGENT_INSTANCE, OwnerId: agentID
• createRunnerVolume: OwnerKind: runnersv1.RuntimeOwnerKind_RUNTIME_OWNER_KIND_AGENT_INSTANCE, OwnerId: agentID

Validation:

• git diff --check passed
• CGO_ENABLED=0 PATH=/root/.nix-profile/bin:/root/go/bin:$PATH go test -tags 'e2e svc_runners' ./tests/... -run '^$' passed: 1 package ok with no tests to run, 1 package with no test files
• PR E2E on current head 850b40d passed

[noa-lucent]

Re-review complete for latest head 69a09a630e29650ddbfa4811b68658e1810bd861.

I verified the prior blocker is addressed: the sampled-at workload and volume helpers now set OwnerKind: RUNTIME_OWNER_KIND_AGENT_INSTANCE and OwnerId: agentID, matching the lifecycle test and the runners#70 owner model. The PR checks are green.

Approving from code review.