## Summary `updatectl features` failed because it expected the old feature JSON fields, while `systemd-sysupdate` now returns `id`, `isEnabled`, and `documentation` as an array. This change: - Aligns `updatectl` with the current feature JSON schema. - Unifies JSON output between `systemd-sysupdate`, D-Bus, and Varlink. - Adds support for multiple `Documentation=` entries for Features and Components. - Exposes and parses `appstream` and `suggested` metadata. - Propagates condition-evaluation errors through `condition_test_list()` and `feature_is_suggested()`. - Reports suggestion-evaluation failures instead of silently treating them as `false`. - Improves JSON dump error handling. - Expands `TEST-72-SYSUPDATE` coverage and fixes its unknown-field assertion. - Documents the `DescribeFeature()` JSON field transition in `NEWS`. - Keeps the existing Component name list for `sysupdated` compatibility. The `name`/`enabled` to `id`/`isEnabled` transition is intentional and documented as a v262 payload change. Fixes #43603
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