Feature: service task

[cammiida]

Description

First version of service task support in the frontend (i.e., failing service tasks).
Assumes that a layout set has been created for the failing service task, but Studio can potentially help set up a default for this. Alternatively, we can consider providing a default view ourselves.

Timeouts are not handled (in cases where TE has configured endless service tasks), as I don't have control over the infrastructure and configs, making it difficult to handle something I'm not fully aware of. This needs to be discussed in more detail when people are back from vacation.

Service Task Failure Support:

• Added support for automatically navigating to the current task when process/next fails and current task has changed
• Enhanced process/next button to also handle process/next in service task
• Added ELEMENT_TYPE element type to shared types

Error Handling Refactoring:

• Improved error handling in useProcessNext to show user-friendly toast messages instead of full-page errors if app supports it
• Added generic typing to HttpClientError

Screen.Recording.2025-07-16.at.11.09.27.mov

Related Issue(s)

• closes #{issue number}

Verification/QA

• Manual functionality testing
  • I have tested these changes manually
  • Creator of the original issue (or service owner) has been contacted for manual testing (or will be contacted when released in alpha)
  • No testing done/necessary
• Automated tests
  • Unit test(s) have been added/updated
  • Cypress E2E test(s) have been added/updated
  • No automatic tests are needed here (no functional changes/additions)
  • I want someone to help me make some tests
• UU/WCAG (follow these guidelines until we have our own)
  • I have tested with a screen reader/keyboard navigation/automated wcag validator
  • No testing done/necessary (no DOM/visual changes)
  • I want someone to help me perform accessibility testing
• User documentation @ altinn-studio-docs
  • Has been added/updated
  • No functionality has been changed/added, so no documentation is needed
  • I will do that later/have created an issue
• Support in Altinn Studio
  • Issue(s) created for support in Studio
  • This change/feature does not require any changes to Altinn Studio
• Sprint board
  • The original issue (or this PR itself) has been added to the Team Apps project and to the current sprint board
  • I don't have permissions to do that, please help me out
• Labels
  • I have added a kind/* and backport* label to this PR for proper release notes grouping
  • I don't have permissions to add labels, please help me out

[olemartinorg]

🙌

[sonarqubecloud]

Quality Gate failed

Failed conditions
33.0% Coverage on New Code (required ≥ 45%)
23.53% Condition Coverage on New Code (required ≥ 45%)

See analysis details on SonarQube Cloud