The official source of truth here is is American Airlines Contract of Carriage, which governs all tickets purchased for travel on American Airlines.
The first relevant section here is under "Definitions", where it states :
Stopover - a deliberate interruption of travel for more than 4 hours
constitutes a domestic stopover unless specified otherwise."
Hawaiian has changed their music: as of late 2019, it's now the rather haunting Life in these Islands performed by Kawika Kahiapo. Here's the official Hawaiian Airlines video for it: https://youtu.be/G4rf9y0xukk
This is a very specific situation so the only way to answer this question is to make the reservation*, then call AA and ask. You may have to ask more than once, finding an Agent (more seniority is better) who knows what to look for, because there are several factors that come into play.
The exact scope of the Interline between AA and HA. Because they ...