The mysql chart actually deploys MariaDB via mariadb-operator, but was
incorrectly named "mysql". Rename all references to use the correct
"mariadb" name across the codebase.
Changes:
- Rename packages/apps/mysql -> packages/apps/mariadb
- Rename packages/system/mysql-rd -> packages/system/mariadb-rd
- Rename platform source and bundle references
- Update CRD kind from MySQL to MariaDB
- Update RBAC, e2e tests, backup controller tests
- Keep real MySQL CLI/config tool names unchanged (mysqldump, [mysqld], etc.)
Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Andrei Kvapil <kvapss@gmail.com>
