UNLM-60: declare Node.js engine >=22

[josefjadrny]

Related Tickets & Documents

UNLM-60

Description

This is a MAJOR version bump. The only change is declaring a minimum Node.js engine requirement of >=22 in package.json (previously this library had no Node version declared — no engines field, no .nvmrc). There are no API changes — major reflects the breaking engine requirement, since consumers still on Node 18/20 must upgrade Node before adopting this version.

Part of the UNLM-59 epic ("Upgrade to node 22+").

Changes:

• added .nvmrc with 24
• package.json engines.node → >=22.0.0 (newly declared)

Note: this repo has no CHANGELOG.md, no lint-test.yml, and no cicd_npm-publish.yml workflow, so no other files needed updates.

When merging, use the npm-version-major label.

What type of PR is this?

• 🚧 Maintenance
• 📦 Dependency Update

Manual testing

• npm install runs without engine warnings on Node 22
• npm run unit passes locally on Node 22 (22 unit tests passing)

Added automated tests?

• 🙅 No, because they are not applicable

Updated documentation?

• 🙅 N/A