Feature request: Use Plex guid as trakt matching id

[simonc56]

Feature description

Use directly Plex guid to match Trakt media instead of third-party ids such as tmdb, tvdb or imdb.
As of november 2025, Trakt API returns Plex guid of media among other external ids.
This new id is not official and not available yet, but it could be in the future.

Before trakt API update :

"ids": {
	"imdb": null,
	"tmdb": 4752591,
	"tvdb": null,
	"tvrage": null,
	"trakt": 10911404
}

After trakt API update :

"ids": {
	"imdb": null,
	"plex": {
		"guid": "650ed4df83684bfa1e0ba595"
	},
	"tmdb": 4752591,
	"tvdb": null,
	"trakt": 10911404
}

Use case

Using it to match Plex / Trakt media during sync could improve match reliability.

Workarounds

Keep matching logic as is, but external ids are sometimes missing in TMDB database and need users to manually add them on TMDB website. Boring and subject to mistake.

Plan to implement

Maybe I will submit a PR if it becomes available in /search endpoint.