fix: snap package versions show as 0+git hash instead of semver #80
Description
Snap packages published to the Snapcraft Store show versions like 0+git.9337614 instead of proper semver. Root cause: version: git in snapcraft.yaml relies on git describe --tags which fails inside the LXD build container used by snapcore/action-build. Fix: inject version from git tag into snapcraft.yaml before building.