feat(core): implement the missing mfa bind and guard flow

[simeng-li]

Summary

Implement the missing mfa bind and guard flow

• New class Mfa that stores new linked MFA data and provides the linking methods.

• New profile endpoints:

  • /experience/profile/mfa/mfa-skipped
  • /experience/profile/mfa
  • /experience/profile/mfa/backup-codes/generate
  • /experience/profile/mfa/backup-codes

Testing

integration tests in a separate PR. Working on tests. See #6330 for integration tests.

Checklist

• [ ] .changeset
• [ ] unit tests
• [x] integration tests
• [x] necessary TSDoc comments

[github-actions[bot]]

COMPARE TO master

Total Size Diff :warning: :chart_with_upwards_trend: +18.71 KB

Diff by File

|Name|Diff| |---|---| |packages/core/src/routes/experience/classes/experience-interaction.ts|:chart_with_upwards_trend: +1.19 KB| |packages/core/src/routes/experience/classes/helpers.ts|:chart_with_upwards_trend: +641 Bytes| |packages/core/src/routes/experience/classes/libraries/mfa-validator.ts|:chart_with_upwards_trend: +1.1 KB| |packages/core/src/routes/experience/classes/mfa.ts|:warning: :chart_with_upwards_trend: +11.23 KB| |packages/core/src/routes/experience/classes/verifications/index.ts|:chart_with_upwards_trend: +13 Bytes| |packages/core/src/routes/experience/classes/verifications/totp-verification.ts|:chart_with_upwards_trend: +308 Bytes| |packages/core/src/routes/experience/classes/verifications/web-authn-verification.ts|:chart_with_upwards_trend: +9.06 KB| |packages/core/src/routes/experience/classes/verifications/web-authn.ts|:chart_with_upwards_trend: +8.66 KB| |packages/core/src/routes/experience/const.ts|:chart_with_upwards_trend: +32 Bytes| |packages/core/src/routes/experience/profile-routes.ts|:chart_with_upwards_trend: +3.64 KB| |packages/core/src/routes/experience/verification-routes/web-authn-verification.ts|:chart_with_upwards_trend: +13 Bytes| |packages/integration-tests/src/tests/api/experience-api/sign-in-interaction/mfa-verification.test.ts|:chart_with_upwards_trend: +115 Bytes| |packages/phrases/src/locales/en/errors/session.ts|:chart_with_upwards_trend: +58 Bytes|