The CI workflow now builds a single bundle per run, adds Linux
AppImage output, and updates the Tauri version using a Node script.
The publishing tool is extended to recognize Linux artifacts,
select a primary artifact based on the target platform, and merge
platform entries into an existing latest.json when present.
- Limit matrix parallelism and pass bundle targets to Tauri
- Update updater platform handling and latest.json merging
- Add Linux Tauri config for AppImage bundling
