docs: Phase 20 test matrix — gap inventory + component test specs

Add detailed coverage mapping of 43 existing tests against the test
roster. Identify 7 missing component tests and 3 missing integration
tests with concrete scenarios, file placement, and must-prove criteria.

Key finding: every tester-found bug during T1-T5 was a wiring bug caught
by reviewing the production path, not by unit tests on pure logic. This
confirms component tests are the highest-value gap for CI/CD protection.

Priority order: Tier 1 (7 component tests, do now), Tier 2 (3 integration
tests, do before hardware), Tier 3 (4 hardware scenarios, T6/T7).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
pingqiu
2026-04-05 19:33:55 -07:00
co-authored by Claude Opus 4.6
parent 3e6155c18e
commit 1c7154a11a
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