Enhancement: EPG debug功能 #327
Description
看status里的状态，经常出现EPG fetch failed，比如：
22:01:38 ERROR [Worker 1] EPG fetch failed (error count: 7), will retry in 128 seconds (retry 7/8)
22:03:41 ERROR [Worker 0] Async HTTP fetch failed (exit code 22): https://epg.aptv.app/pp.xml.gz
22:03:41 ERROR [Worker 0] EPG fetch failed (error count: 8), will retry in 256 seconds (retry 8/8)
22:03:47 ERROR [Worker 1] Async HTTP fetch failed (exit code 22): https://epg.aptv.app/pp.xml.gz
22:03:47 ERROR [Worker 1] EPG fetch failed (error count: 8), will retry in 256 seconds (retry 8/8)
22:08:01 ERROR [Worker 0] Async HTTP fetch failed (exit code 22): https://epg.aptv.app/pp.xml.gz
22:08:01 ERROR [Worker 0] EPG fetch failed (error count: 9), max retries (8) exceeded, will wait for next update interval
22:08:04 ERROR [Worker 1] Async HTTP fetch failed (exit code 22): https://epg.aptv.app/pp.xml.gz
22:08:04 ERROR [Worker 1] EPG fetch failed (error count: 9), max retries (8) exceeded, will wait for next update interval
能不能EPG链接能够单独做为一个配置选项，能够配置多个EPG，并且能够显示当前那个EPG成功fetch。
还有，为什么aptv的EPG不能用？我尝试了https://epg.aptv.app, https://epg.aptv.app/pp.xml.gz 都不行