Fix SonarQube MINOR issues in the orchestrator workspace

[christoph-jerolimov]

Fix the following issues in the orchestrator workspace:

Rule	Message	File
typescript:S7722	Error message should not be an empty string.	workspaces/orchestrator/plugins/orchestrator/src/utils/ErrorUtils.test.ts:51
typescript:S4325	This assertion is unnecessary since the receiver accepts the original type of the expression.	workspaces/orchestrator/plugins/orchestrator-form-react/src/utils/evaluateHiddenCondition.ts:136
typescript:S6594	Use the "RegExp.exec()" method instead.	workspaces/orchestrator/plugins/orchestrator-form-widgets/src/utils/useFetch.ts:181
typescript:S6594	Use the "RegExp.exec()" method instead.	workspaces/orchestrator/plugins/orchestrator/src/utils/ErrorUtils.ts:51
javascript:S7726	The arrow function should be named.	workspaces/orchestrator/eslint.frontend-shared.cjs:39

[fullsend-ai-triage]

🤖 Finished Triage · ✅ Success · Started 7:59 PM UTC · Completed 8:01 PM UTC
Commit: 82225ba · View workflow run →

[fullsend-ai-triage]

Triage Summary

This issue requests fixing 5 well-defined SonarQube MINOR code quality violations in the orchestrator workspace. Each fix is small and independent:

#	Rule	Fix	File
1	S7722	Provide a non-empty error message	ErrorUtils.test.ts:51
2	S4325	Remove unnecessary type assertion	evaluateHiddenCondition.ts:136
3	S6594	Use RegExp.exec() instead of String.match()	useFetch.ts:181
4	S6594	Use RegExp.exec() instead of String.match()	ErrorUtils.ts:51
5	S7726	Name the arrow function	eslint.frontend-shared.cjs:39

Severity: Low — these are code style/best-practice improvements with no runtime impact.

Recommended approach: Each fix can be made independently. Existing tests should continue to pass after these mechanical refactors.

Proposed test verification:
- Run existing orchestrator workspace tests to confirm no regressions
- For RegExp.exec() changes: verify match groups are preserved
- For type assertion removal: verify TypeScript compilation succeeds
- For empty error string: verify the test still exercises the error path

This is a good candidate for a first-time contributor.

---

Labels: Issue targets the orchestrator workspace with small code quality fixes suitable for newcomers.

[fullsend-ai-coder]

🤖 Finished Code · ✅ Success · Started 8:03 PM UTC · Completed 8:21 PM UTC
Commit: 82225ba · View workflow run →