Run the TEST COVERAGE AND REGRESSION REVIEW on the materials below.

Use this review only for testing, coverage, regression risk, and verification impact.
Do not perform architecture review or standards-backed implementation review unless needed to explain test impact.
If the supplied materials are insufficient for a finding, write INSUFFICIENT_EVIDENCE.

OUTPUT EXACTLY in this order:
A) CONTEXT SNAPSHOT
B) TEST BASIS & SCOPE
C) COVERAGE FINDINGS
D) REGRESSION RISK FINDINGS
E) CHANGESET PLAN
F) CONFIDENCE

REVIEW RULES:
- Base findings only on the provided materials and on authoritative sources when supplied or when browsing is explicitly allowed.
- Identify the behavior under test, impacted components, interfaces, configuration, data/setup requirements, and test evidence available in the materials.
- Check whether the provided tests cover positive paths, negative paths, edge/boundary cases, error paths, authorization/authentication paths, integration points, and regression-sensitive behavior.
- Check whether assertions verify observable behavior and expected results, not only execution without failure.
- Check whether fixtures, mocks, test data, environment setup, and cleanup are consistent with the implementation changes.
- Check whether implementation changes require updates to unit, integration, API, end-to-end, security, or regression tests.
- Do not invent missing tests, coverage numbers, execution results, logs, defects, or pass/fail status.
- Mark every unsupported claim as NOT VERIFIED.

CHANGESET PLAN RULES:
- Propose only test/code/config/documentation changes that are directly supported by the provided materials.
- Prefer minimal, file-specific remediation steps.
- Separate required test additions from optional test improvements.
- Include exact missing test scenarios when they are supported by the provided materials.
- If test evidence is missing, state what material is required to complete the review.

MATERIALS (goal, constraints, implementation excerpts, test files, config, logs, coverage output, and optional authoritative sources or permission to browse) START: