chore: release v0.7.2

chore: release v0.7.1

chore: release v0.7.0

chore: release v0.6.0

chore: release v0.5.1

chore: release v0.5.0

chore: release v0.4.1

Release v0.4.0

SQLite backend, sprint carry-over, settings UI, undo/redo, AUR packaging,
and per-layer error types. See CHANGELOG.md for full details.

Tagged at the post-hotfix merge commit (cf0ed2a). The hotfix
(b3c1aae + 87913a4) strips version pins from internal dev-deps to break
a workspace-publish cycle that aborted the original release run.

chore: release v0.3.5

chore: release v0.3.3