[PHASE 1] Baseline Measurement and Coverage Gap Report

[ashleyshaw]

Summary

Establish the initial coverage baseline and turn the current coverage gap into a documented implementation checklist.

Action

• Action Type: Create
• Target File: .github/projects/active/test-coverage-implementation/README.md

Proposed Test Content

This phase covers tasks 1.1 to 1.4 from the source README:

• run the initial coverage report
• generate and review the HTML coverage report
• document baseline metrics and the gap to 80%
• create the implementation checklist and execution order

Scope & Applicability

• Type: Baseline audit and reporting
• Affected Areas: repository-wide coverage reporting, baseline documentation, implementation planning
• Audience: maintainers, developers, QA

Parent Issue

• Parent Issue: [EPIC] Test Coverage Implementation Programme #932

Acceptance Criteria

• Coverage report runs successfully.
• HTML report is reviewed and low-coverage files are identified.
• Baseline metrics are recorded in the report artefact.
• A prioritised implementation checklist exists for the remaining phases.
• Change is documented in the project change log.
• PR uses correct branch prefix (audit/).

Additional Context

This phase blocks every later phase, so it must be the first live issue in the chain.

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Definition of Ready (DoR)

• Purpose, scope, and audience defined
• Target file and action type specified
• Acceptance criteria listed
• Estimate added (if applicable)

Definition of Done (DoD)

• All acceptance criteria met and verified
• Changelog entry prepared for PR
• Test passes all required scenarios and environments
• Documentation updated (if needed)
• PR uses correct branch prefix (audit/)
• Approved by at least one maintainer

[linear-code]

LS-996