Support audio for pump managers that use silent audio for keep-alive

[marionbarker]

Purpose

Enable the silent audio method to be used with Loop when needed.

Background

The DanaKit enables users to select playing a silent tune while the app is in the background or the phone is locked.

• The allows the user to run with a CGM that does not provide a heartbeat
• The current DanaKit directions in LoopDocs have the user modify the Loop code to enable this feature, which is off by default

There is also a proposed change to OmniBLE which is under development

• It provides a pod-keep-alive option
• Users of iPhone 16 can select a silent tune (or RileyLink) for use with InPlay pods to keep the BLE connection between phone and pod alive so long at the two are within Bluetooth range by sending a getStatus to the pod before the 3-minute automatic BLE disconnect

Test

Trick: While testing, a heartbeat.wav file is used to overwrite the blank.wav file. The tester can then hear the "silent" audio when it is active.

This modification was tested and was successful.

• Add DanaKit pump
• Long press pump name
• Choose silent audio
• put app in background and hear the heartbeat
• lock the phone and hear the heartbeat

Reverse the process with long press and disable silent audio.
No heartbeat is heard.

[itsmojo]

LGTM