v0.3.0

Added

• jj change tracking: each annotation records the commit its change pointed at when captured, and re-anchoring classifies the change as unchanged, amended, divergent, or abandoned. Surfaced in margin list --json (revision_state, plus current_commit when amended) and flagged in the timeline view (~/!/×). git has no stable change identity across amend, so the field is reported as unsupported/omitted there.

Changed

• Breaking (store format): annotation anchors now require a captured commit hash, so .margin/annotations.ndjson logs written before this change will no longer parse.