Bundle the current workspace changes into a single checkpoint covering the in-progress shared UI, settings, and GAT562 runtime work.
What this includes:
- add the APRS asset source and image resource currently used by the shared UI asset set
- extend the shared System/settings flow so vibration and screen brightness can be surfaced through the device runtime and settings UI plumbing
- update the mono 128x64 runtime and the GAT562 platform bindings so the new settings controls are available in the GAT562 experience
- wire the ESP runtime/startup helpers needed to support the same device-runtime settings path on the ESP side
- persist the GAT562 self GPS position into the node store during core service updates so a device that already obtained a fix can retain its own last known position across reboot
- add an explicit node-store flush interface and implement it in both the nRF52 and ESP Meshtastic node-store backends so critical self-position updates can be forced to persistent storage immediately instead of waiting for the normal debounce window
- keep the existing debounced persistence behavior for ordinary node-store churn while allowing targeted immediate flushes for data that would otherwise be easy to lose during restart or power loss
- migrate ESP board-specific implementations and runtime adapters into boards/*
- continue GAT562/Tab5/UI runtime alignment across app and board layers
- sync BLE and runtime integrations, and apply repository clang-format rules