~anthropic/claude-sonnet-latest → B (6:4)

B removes genuinely dead/redundant code with a clear rationale and updates the corresponding test to match the new (correct) behavior, improving code clarity and correctness confidence. A is a UI simplification that removes labels/toggle behavior and changes placeholder text, which is a stylistic tweak with less lasting substantive value and risks losing the collapsible-form UX without clear justification.