* Fix Windows crash by handling WinRT exceptions in BLE callback paths
This patch hardens the Windows plugin against unhandled native exceptions that could terminate the Flutter process during reconnect/disconnect flows.
- add shared `log_and_swallow` helpers for consistent native exception logging
- wrap `ConnectAsync` in defensive `try/catch` blocks, including per-service characteristic discovery
- guard `BluetoothLeDeviceConnectionStatusChanged` to prevent callback exceptions from escaping
- harden `CleanConnection` and `DisposeServices` when unregistering handlers/subscriptions
- add explicit error handling around CCCD writes in `SetNotifiableAsync`
- wrap `GattCharacteristicValueChanged` notification callback path in `try/catch`
- add `ResetState()` helper scaffold for full native BLE state cleanup on Windows
* Added missing log to an empty catch statement
* fix(windows): report native callback failures as disconnect events
- emit `OnConnectionChanged(..., false, error)` on WinRT exceptions
- clean connection state before reporting disconnect
* Update windows/src/universal_ble_plugin.cpp
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* Update windows/src/universal_ble_plugin.cpp
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* Update windows/src/helper/utils.h
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* Update windows/src/helper/utils.h
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Co-authored-by: Navideck Labs <130186950+navidecklabs@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Usman Mehmood
3f4abdc5cd