Is your feature request related to a problem? Please describe.

Cloudreve will only start transfer file after aria2 report download finished, but It not consider the seed time after download finished, hence, a sort seed time must been set for avoid unnecessarily delay. A suitable seed time is necessary for the health of BT network.

Describe the solution you'd like

Provide a seting for set the seed time (or load it from aria2 configure file), start transfer file Immediately, and keep the temp file until seed time finished (or aria2 report seed time finished)

Describe alternatives you've considered

Manual set a sort seed time in aria2.

Additional context

N/A