Establish Unit Test Metadata (Traceability)

### What

Tests exist for all components but none carry the process-required GTest
`RecordProperty` metadata (`TestType`, `DerivationTechnique`, `Description` in
Given-When-Then format, `FullyVerifies` / `PartiallyVerifies` linking to `comp_req`
UIDs). Without this metadata, the process-mandated verification report cannot be
generated.

### References

- [S-CORE Verification](https://eclipse-score.github.io/process_description/main/process_areas/verification/)

Start by inventorying the existing component tests and reading the linked S-CORE Verification guidance for the required GTest RecordProperty fields. Add TestType, DerivationTechnique, Given-When-Then Description, and FullyVerifies or PartiallyVerifies links to comp_req UIDs. Done means all component tests carry the metadata needed to generate the verification report.

Written by the indexing model from the issue text.