Use relay for pinging ble device

[beastoin]

Summary by Entelligence.AI

• New Feature: Enhanced the Bluetooth Low Energy (BLE) device connection management. This update improves the efficiency of pinging connected devices, reducing unnecessary traffic and potentially extending battery life.
• Refactor: Internal changes to the handling of BLE device connections for better performance and reliability. These modifications are not directly visible to users but contribute to a smoother and more stable user experience.

[github-actions[bot]]

Entelligence.AI

Walkthrough

This update introduces a new mechanism to manage Bluetooth Low Energy (BLE) device connections more efficiently. It adds a timestamp to track the last successful ping response, which helps in determining when to initiate the next ping. This change enhances the connection stability and optimizes the resource usage by avoiding unnecessary pings.

Changes

Files	Summary
app/lib/services/device_connections.dart, app/lib/services/devices.dart	Introduced a _pongAt field to track the last successful ping response from a BLE device. Updated the logic for pinging connected devices, now based on the last pong time. This improves connection management and reduces unnecessary pings.

"In the realm of bytes and bits, 🌐
A small change makes a big hit. 💥
With each ping and pong in the game, 🏓
Our BLE connections are never the same. 📡"

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