Provide functions warning

Author: mcmchris

content/hardware/02.uno/boards/uno-q/tutorials/01.user-manual/content.md

@@ -876,6 +876,8 @@ To capture more detailed information in the logs, you can append the `--verbose`
 - `provide(name, function)`: Exposes a local MCU function to Linux. Note: The function executes in the high-priority background RPC thread. Keep these functions short and thread-safe.
 - `provide_safe(name, function)`: Exposes a local MCU function, but ensures it executes within the main `loop()` context. Use this if your function interacts with standard Arduino APIs (like `digitalWrite` or `Serial`) to avoid concurrency crashes.
 
+***__Warning:__ Do not use `Bridge.call()` or `Monitor.print()` inside `provide()` functions. Initiating a new communication while responding to one causes system deadlocks.***
+
 `RpcCall`
 - Helper class representing an asynchronous RPC. If its `.result` method is invoked, it waits for the response, extracts the return value, and propagates error codes if needed.