Sistedes Library Manager v2026-06

2026-06 release, used to produce the proceedings of Sistedes 2026 (JISBD, JCIS, PROLE).

This release only contains minor fixes and no breaking changes.

Changelog:

• Update documentation for list and init commands.
• Set affiliation only if not blank.
• Update pom.xml to use https in schemas URLs to avoid warning/errors.

Full Changelog: v2025-09...v2026-06