Add utility function isValidSwissIbanNumber

[dom-baur]

Add utility function isValidSwissIbanNumber for issue #77

[pkg-pr-new]

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npm i https://pkg.pr.new/neolution-ch/javascript-utils/@neolution-ch/javascript-utils@79

commit: 328ef6c

[Copilot]

Pull Request Overview

This PR adds a new utility function isValidSwissIbanNumber to validate Swiss IBAN numbers according to the IBAN standard. The implementation includes input sanitization, format validation, and checksum verification using the mod-97 algorithm.

• Implements Swiss IBAN validation with proper format checking and checksum calculation
• Adds comprehensive test cases covering various valid and invalid IBAN scenarios
• Updates changelog to document the new utility function

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
src/lib/string.ts	Adds the isValidSwissIbanNumber function with IBAN validation logic
src/lib/string.spec.ts	Adds test cases for the new IBAN validation function
CHANGELOG.md	Documents the addition of the new utility function

Comments suppressed due to low confidence (1)

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[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
main	100%	100%	0	✔
Summary	100% (188 / 188)	100% (95 / 95)	0	✔