Modify the createAgents function to call each agent constructor only once.\n\nPreviously, the constructor (init(ds)) was called first to check if the\nagent could be initialized, and then called again when appending the agent\nto the result slice. This caused unnecessary work and duplicate log messages.\n\nThe fix stores the result of the first call in the 'agent' variable and\nreuses this instance when appending, ensuring each constructor runs only once.
* lastfm album.getInfo, getAlbuminfo(2) endpoints
* ... for description and reduce not found log level
* address first comments
* return all images
* Update migration timestamp
* Handle a few edge cases
* Add CoverArtPriority option to retrieve albumart from external sources
* Make agents methods more descriptive
* Use Last.fm name consistently
Co-authored-by: Deluan <deluan@navidrome.org>
