1$ npm test -- --coverage 2PASS src/auth/middleware.test.ts 3 validateBearerToken 4 ✓ rejects missing header (4 ms) 5 ✓ rejects malformed token (2 ms) 6 ✓ accepts signed token (3 ms) 7 8Tests: 12 passed, 12 total 9Coverage: 94.2% stmts