feat: add Gratitude plugin

[BlythT]

Adds https://github.com/BlythT/Gratitude-Millennium-Plugin

A plugin for your Steam Library that adds a helpful indicator to games you have been gifted.

See README.md for screenshots of it in action and FAQ

[shdwmtr]

Thanks for the PR! Just ensure your plugin build works (from the test build) and then we'll need a third-party to test the plugin test build. Once they've tested it and it works, they can report back here, and I'll merge the plugin. You can find testers in the Millennium discord!

[BlythT]

@shdwmtr there was a bug on linux (trying to use millennium.steam_path to get to plugin dir, rather than using utils.get_backend_dir) which meant the consent/cache never saved properly.

This is fixed in the latest version, does the test build need to be run again to fetch the newest version?

[shdwmtr]

Hello; I need write access to this pull request, thanks!

[BlythT]

I'm not familiar with the process but I've added you as a collaborator on the fork

[BlythT]

Tried the rebase myself but it wasn't super simple, so reverted back to pre-rebase state

Let me know if you need anything from me, but you should have access :)

[shdwmtr]

Seems good, just need a third party to test the build (from the test build) and report back here if it works. I can then merge this!

[BlythT]

Thanks a lot, I've asked in Discord, but I have a friend on Linux (has a GitHub, has used Millennium) who can vouch as well if I don't find anyone there

[BlythT]

just need a third party to test the build (from the test build)

Do you mean get the plugin from the GitHub actions artifacts of the build for my PR? https://github.com/SteamClientHomebrew/PluginDatabase/actions/runs/21726554012

I see it's in the build logs but no artifact exists for gratitude

[LaserFlash]

Do you mean get the plugin from the GitHub actions artifacts of the build for my PR? https://github.com/SteamClientHomebrew/PluginDatabase/actions/runs/21726554012

I see it's in the build logs but no artifact exists for gratitude

I think it it the __plugin__ artifact.

@BlythT looks like you forgot to set the plugin name.
https://github.com/BlythT/Gratitude-Millennium-Plugin/blob/main/plugin.json#L4

[LaserFlash]

But I can verify that using the build from Gratitude-Millennium-Plugin or the __plugin__ artifact from the GitHub artifacts on this pull request work.

---

Although, weirdly when using the build from the __plugin__ artifact Millennium asks to update the build and wants to replace it with the CSWatch Plugin.

[BlythT]

Fixing that now, no wonder it didn't show up in the build. Thanks @LaserFlash

[BlythT]

I've fixed the plugin name, rebased the fork, and updated the submodule to the latest commit: should be good to go @shdwmtr :)