Governance update

CONTRIBUTING.md

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+<!--
+ Copyright (C) 2025 Moko Consulting <hello@mokoconsulting.tech>
+
+ This file is part of a Moko Consulting project.
+
+ SPDX-LICENSE-IDENTIFIER: GPL-3.0-or-later
+
+ This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License (./LICENSE).
+
+ # FILE INFORMATION
+ DEFGROUP: Joomla.Template.Site
+ INGROUP: Moko-Cassiopeia.Documentation
+ REPO: https://github.com/mokoconsulting-tech/moko-cassiopeia
+ VERSION: 03.05.00
+ PATH: ./CONTRIBUTING.md
+ BRIEF: How to contribute; commit, PR, testing and security policies
+ -->
+
+# Contributing
+
+1. Fork and branch: feat/ or fix/*
+2. Conventional Commits; sign off using DCO line
+3. Open a PR with tests/docs and linked issues
+
+**Types**: build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test