feat: editor endpoints

[jrasm91]

Add a server endpoint to create assets from edits. For example,

{
  id: asset.id,
  edits: [
    { action: 'adjust', brightness, saturation, hue, lightness },
    { action: 'crop', region: { top, left, width, height },
    { action 'rotate', angle: 90 },
  ]
}

(basically a wrapper around sharp, with the output file being added as a new asset for the caller)

[foobarbecue]

I would really love to be able to use this feature. Is there anything I can help with? I'm new to immich and have coded in lots of languages but not dart. Am willing to test.

[aronsky]

I'd just like to add that another use-case would be for transferring backups from Google Photos. When an image is edited in Google Photos, only the edited version is shown in the library (at least, in certain conditions), though the original is still available for download. In the takeout archive, both the original and the edited image are present. I would like to import such pairs into Immich and be able to somehow instruct Immich to only show the edited copy, but to provide the option to get the original, if I so desire.

Not sure this is the right place to suggest this, but I came here from #11074 - and the server-side part of image editing sounded most relevant.