fix(test): defuse the suite's landmines, and cover the dossier's untested modules

• e6b3369f55 fix(review): read what publishing reported, honour reviewSuggestions, and un-strand two flags glennmichael123 review this step
• e2bb511cc5 fix(test): defuse the suite's three landmines glennmichael123 review this step
• a32cd2cb09 test: cover the dossier's two untested modules, and say bun install is not optional glennmichael123 review this step
• 9e8104a811 test(ai): assert the anthropic mapping at the fetch layer, not through a second module mock glennmichael123 review this step