release

Release new npm + SF 2GP package versions for salesforce-mcp-lib. TRIGGER when: user says "release", "publish", "new version", "bump version", "npm publish", "package version create", or asks to tag and push a release. DO NOT TRIGGER when: writing code (use sf-apex/sf-lwc), deploying metadata to an org (use sf-deploy), or running tests only (use sf-testing).