[FEATURE] Verify Interface Package Artifacts

[daeyoung-jeong-lge]

Related Epic

Part of EPIC #2

Requirement Description

Provide verification vectors and package integrity metadata for the interface example.

Acceptance Criteria

• Nominal and failure normalization cases are covered.
• Artifact paths and digests are consistent.
• The example signature state is explicit.

Related Documents/References

interfaces/vendor-a-npu-evidence-layer-package/tests/; interfaces/vendor-a-npu-evidence-layer-package/signatures/

Subtasks

N/A

Testing Plan

Run package linkage, normalization-vector, and digest consistency checks.

Test Results

N/A