2026.3.0

Version 2026.3.0 adds a layer filtering setup for mobile application.

What's Changed

• Qgis security scan by @harminius in #875
• Stop reading project file on auth create by @Withalion in #885
• ci: mimic QGIS repository checks with bandit and flake8 by @DanChov in #880
• Improve relation key uniqueness warning with field name and samples by @DanChov in #864
• CI: removed ruff by @DanChov in #886
• Fix validation warning for layers stored in project subfolders by @DanChov in #887
• Fix browser error when Mergin client is not configured by @DanChov in #889
• Update tests and test running on CI by @JanCaha in #896
• Layer filtering by @JanCaha in #892

Full Changelog: 2026.2.1...2026.3.0