Handle self user registration failure when the email domain is not matched with organization email domain

[sadilchamishka]

Proposed changes in this pull request

1. Enable self registration for orgs

[identity_mgt.user_self_registration]
allow_self_registration=true
lock_on_creation=true
enable_recaptcha=true
verification_email_validity="1440"
callback_url="[${carbon.protocol}://${carbon.host}:${carbon.management.port}].*[/authenticationendpoint/login.do]*"
enable_resend_confirmation_recaptcha=true

[identity_mgt.user_self_registration.notification]
manage_internally=true   

2. Set email domain organization discovery for an organization.

3. Try self registering with setting email as not matching email domain

Related Issues

• Self user registration fails with server error when invalid username with email domain is provided when the email domain discovery is enabled for an organization. wso2/product-is#19911

After the fix

[sadilchamishka]

Better if we can have validation logic at the portal level so that self registering with incorrect email domain can be blocked and allowed to set an allowed domain. But raising the PR as the previous server error and the display msg looks not intuitive for the end user.

[jenkins-is-staging]

PR builder started
Link: https://github.com/wso2/product-is/actions/runs/11142949997

[jenkins-is-staging]

PR builder completed
Link: https://github.com/wso2/product-is/actions/runs/11142949997
Status: failure

[jenkins-is-staging]

PR builder started
Link: https://github.com/wso2/product-is/actions/runs/11143127704

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 24.72%. Comparing base (5b1f2c2) to head (f299545).
Report is 31 commits behind head on master.

Files with missing lines	Patch %	Lines
...y/recovery/signup/UserSelfRegistrationManager.java	60.00%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #813      +/-   ##
============================================
+ Coverage     24.21%   24.72%   +0.50%     
- Complexity      996     1012      +16     
============================================
  Files           267      267              
  Lines         15478    15492      +14     
  Branches       2094     2098       +4     
============================================
+ Hits           3748     3830      +82     
+ Misses        11256    11168      -88     
- Partials        474      494      +20     

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[jenkins-is-staging]

PR builder completed
Link: https://github.com/wso2/product-is/actions/runs/11143127704
Status: success

[jenkins-is-staging]

Approving the pull request based on the successful pr build https://github.com/wso2/product-is/actions/runs/11143127704