Catalog 3

## Catalog Lite

`CatalogLite/CatalogLite.csproj` is a minimal Avalonia frontend for processing images from a saved XML configuration. It references `MaddoShared`, uses only the ImageSharp processor, and exposes only XML loading, source/destination folder selection, start/stop, and progress.

The build embeds an expiration date from the `CatalogLiteExpirationDate` MSBuild property:

```powershell
dotnet publish CatalogLite/CatalogLite.csproj -c Release -r win-x64 --self-contained false -p:PublishSingleFile=true -p:CatalogLiteExpirationDate=2026-12-31
```

The separate Forgejo workflow is `.forgejo/workflows/build-catalog-lite.yml`; run it manually and set `expiration_date` in `yyyy-MM-dd` format.