Loyalty programs: can I credit mileage in Garuda to Singapore or Qantas?

I hope to make a good amount of travel in Garuda Indonesia (GA) in the future. GA is a Skyteam member that does not grant direct credit to my preferred airline programs (SQ Krisflyer or Qantas); however, it has a long list of partners, many outside of Skyteam (ANA, Etihad, etc.).

Is there any way to convert my Garuda flights into SQ or QF miles? Open to hairy and multi-step conversions through hotel or airline programs: for example, I have previously credited Hawaiian mileage to SQ by washing through Virgin Australia.

Mileage rate for LAX to HKG

It is necessary to check the route to know the mileage rate. If the fare exceeds the mileage, the routing will be applied or not. kindly advice

if the trip is LAX-EWR-JFK-HKG
LAX EWR travels on weekends with the rate from Monday to Friday and the date and time that the rule says
Allowed on Monday through you in each transport sector. Can we consider it as a day violation?