- JwtServiceImpl: HMAC-SHA256 via Nimbus JOSE+JWT with ephemeral 256-bit secret
- Ed25519SigningServiceImpl: JDK 17 KeyPairGenerator with ephemeral keypair
- BootstrapTokenValidator: constant-time comparison with dual-token rotation
- SecurityBeanConfig: bean wiring with fail-fast validation for CAMELEER_AUTH_TOKEN
- SecurityProperties: config binding for token expiry and bootstrap tokens
- TestSecurityConfig: permit-all filter chain to keep existing tests green
- application.yml: security config with env var mapping
- All 18 security unit tests pass, all 71 tests pass in full verify
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>