Release pipeline after PhotoCraft's: AppImage/deb/rpm/Flatpak/tar.gz for Linux x86_64 and aarch64, FreeBSD, a macOS dmg and CLI zip, Windows x64/x86/arm64 MSI and portable zip (plus the plain x64 exe), web zip, SHA256SUMS.txt; version 0.1.2

Adapted from storytold/photocraft's release.yml and packaging/ (Apache-2.0; ATTRIBUTION.md and
NOTICE say so). Packages install the licence files, THIRD-PARTY-LICENSES.txt included. The app
icon is drawn by `solvecraft-cli icon` (a blue block with a bore, rendered on a transparent
background; .ico too), so no image is committed. Notes: a short header plus GitHub's generated
What's Changed. A dry run (Run workflow, publish off) keeps the files as the release-assets
artifact. packaging-lint.yml checks the workflows, scripts and metadata.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

ATTRIBUTION.md

@@ -40,6 +40,7 @@ Generated-in-code assets are original and have no file to list:
 | crates/io/src/threemf.rs (bounded zip part reading and writing) | GridCraft `crates/xlsx/src/package.rs` | MIT OR Apache-2.0 |
 | crates/ui-egui/src/titlebar.rs (title bar drag, caption buttons, resize zones, their tests) and the window setup in apps/solvecraft/src/main.rs | VectorCraft `crates/ui-egui/src/titlebar.rs`, `apps/vectorcraft/src/main.rs` | MIT OR Apache-2.0 |
 | LICENSE-MIT, LICENSE-APACHE (licence text) | CADCraft | — |
+| .github/workflows/release.yml, .github/workflows/packaging-lint.yml and packaging/ (release pipeline: Linux AppImage/deb/rpm/Flatpak/tar.gz, FreeBSD, macOS dmg, Windows MSI/portable zip, web zip; AppRun, nfpm, Flatpak, WiX and Info.plist templates) | PhotoCraft (https://github.com/storytold/photocraft) `.github/workflows/{release,packaging-lint}.yml`, `packaging/` | Apache-2.0 |
 
 ## Vendored third-party code