The two Wave-0 RED stubs (lists.test.ts, listEmitter.test.ts) were co-located in src/ but all existing API tests live in apps/api/tests/. Move them to tests/routes/ and tests/lib/, add explicit vitest imports to match the tests/ convention, and update path references in downstream plans 04-02..04-06. PWA tests keep co-location (that IS the PWA convention).