Pushing a vX.Y.Z tag kicks off the Codemagic iOS build automatically;
surface that in the release output so the operator knows it's running.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Adds a repo-root release.sh that prompts for the version, bumps it in
Cargo.toml/pubspec.yaml and the About release date, refreshes lockfiles,
runs tests, commits/pushes, tags, creates the GitHub release, and builds
the Docker image, pausing for confirmation between sections.
Release notes live in RELEASE_NOTES.md (newest first, one section per
version); the script extracts the section for the version being cut.
Seeds the file with the v0.1.0 notes and adds gh to the Nix dev shell.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>