use turso sdk, lock worker

[dromzeh]

assetId will be passed as a form param as well as an auth key; will then get that asset data from the database.

if that asset does not have an existing 128px clone [checked by is_optimized = 0], fetch the image from URL, resize it, then save on worker as -128px equiv, update is_optimized to be 1

[dromzeh]

i'll let the API handle this - so we can just have the img resizer as a separate service and it can be used for other things like pfps, banners, etc.