Jade Serpent Tracker

- Fixed Heart timers and ability text occasionally becoming stale after mounting, vehicle changes, or leaving a delve or instance.
- Corrected both 12.1 AuraContainer build orders so all Heart groups exist before the player unit is assigned.
- Added a full Blizzard-managed aura scan after each secure container finishes initializing.
- Added immediate and short settled refreshes after loading screens, mount changes, vehicle entry or exit, and regained player control.
- Kept the recovery path combat-safe by asking Blizzard's AuraContainer to refresh instead of reading protected aura data.
- Added regression coverage for container ordering, initial scans, delve exits, mounts, and player vehicle transitions.