cad-coverage

Close the test-coverage gaps for a completed phase. One question drives it: which phase requirements have NO test that would fail if that requirement regressed? Those are the gaps. Audit them, then generate real tests to cover them, in the project's own test framework.

Audit and generate in one un-duplicated flow. No fixed stack, no Playwright/E2E default - the test kind and runner follow the code and workflow.test_command.

<execution_context> @${CLAUDE_PLUGIN_ROOT}/cadence-core/workflows/coverage.md </execution_context>

Run the coverage workflow end-to-end. Coverage means a test that would FAIL if the requirement broke - not a test that merely runs the code. Get user approval on the gap test plan before generating, and verify generated tests actually run.