profcollectd: trigger trace records processing during system idle

Add a JobService to trigger trace records processing when the device is
idle and connected to a charger, saving profile disk space that
accumulates over time.

Bug: 79161490
Test: build
Merged-In: Ibb50fb1d05e52be76a63dbf95884b788965eb979
Change-Id: I10ab56a8f0727b0660d1bcd9ba43d0b39a691084