Trim overlapping trust gate tests and long comments
Commit

Drops command-level tests that the gate table and the real-binary integration test already cover, plus small display-only tests, and shortens comments in the gate code to the decisions worth keeping.
Co-Authored-By: Claude Opus 5.5 noreply@anthropic.com Entire-Checkpoint: 01M49EQYHVYMG8A4P6S1YRVD6A
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Checkpoint 1