test: Add team creation e2e coverage (WPB-26345)

[emmaoke-w]

https://wearezeta.atlassian.net/browse/WPB-26345

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PR Submission Checklist for internal contributors

• The PR Title

  • conforms to the style of semantic commits messages¹ supported in Wire's Github Workflow²
  • contains a reference JIRA issue number like SQPIT-764
  • answers the question: If merged, this PR will: ... ³

• The PR Description

  • is free of optional paragraphs and you have filled the relevant parts to the best of your ability

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What's new in this PR?

• Adds E2E coverage for successful team creation from the email verification welcome flow.
• Adds validation coverage for invalid team registration inputs, including invalid email, password mismatch, and invalid password requirements.
• Adds verification-code error coverage for entering an incorrect OTP during team registration.
• Introduces TeamCreationPage page object and wires it through AllPages for reuse.
• Updates Inbucket OTP retrieval usage to rely on backend client credentials consistently.

Issues

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Causes (Optional)

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Solutions

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Dependencies (Optional)

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Needs releases with:

• GitHub link to other pull request

Testing

Test Coverage (Optional)

• I have added automated test to this contribution

How to Test

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PR Post Submission Checklist for internal contributors (Optional)

• Wire's Github Workflow has automatically linked the PR to a JIRA issue

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PR Post Merge Checklist for internal contributors

• If any soft of configuration variable was introduced by this PR, it has been added to the relevant documents and the CI jobs have been updated.

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References

1. https://sparkbox.com/foundry/semantic_commit_messages
2. https://github.com/wireapp/.github#usage
3. E.g. feat(conversation-list): Sort conversations by most emojis in the title #SQPIT-764.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 48.76%. Comparing base (3f2dceb) to head (b2d06fe).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #4966   +/-   ##
========================================
  Coverage    48.76%   48.76%           
========================================
  Files          644      644           
  Lines        23145    23145           
  Branches      3545     3545           
========================================
  Hits         11287    11287           
  Misses       10809    10809           
  Partials      1049     1049           

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud