Integration tests for all endpoints

- [x] POST /account/create
- [x] GET  /account/devices
- [x] GET  /account/keys
- [x] POST /account/reset
- [x] POST /account/destroy
- [x] POST /auth/start
- [x] POST /auth/finish
- [x] POST /session/create
- [x] POST /session/destroy
- [x] GET  /recovery_email/status
- [x] POST /recovery_email/resend_code
- [x] POST /recovery_email/verify_code
- [x] POST /certificate/sign
- [x] POST /password/change/start
- [x] POST /password/forgot/send_code
- [x] POST /password/forgot/resend_code
- [x] POST /password/forgot/verify_code
- [x] POST /get_random_bytes