Include exception details in InvalidOperationException error message

Agent-Logs-Url: https://github.com/dotnet/android-tools/sessions/4d087279-7eeb-47a4-9100-7259c95cbad3

Co-authored-by: jonathanpeppers <840039+jonathanpeppers@users.noreply.github.com>

Author: Copilot

src/Xamarin.Android.Tools.AndroidSdk/Runners/EmulatorRunner.cs

@@ -236,13 +236,13 @@ public async Task<EmulatorBootResult> BootEmulatorAsync (
 						logger.Invoke (TraceLevel.Verbose, $"Emulator launcher process exited with code 0 (likely forked). Continuing to poll adb devices.");
 						processExitedWithZero = true;
 					}
-				} catch (InvalidOperationException) {
+				} catch (InvalidOperationException e) {
 					// No process associated with the object — treat as a launch failure.
 					emulatorProcess.Dispose ();
 					return new EmulatorBootResult {
 						Success = false,
 						ErrorKind = EmulatorBootErrorKind.LaunchFailed,
-						ErrorMessage = $"Emulator process for '{deviceOrAvdName}' is no longer available (no process associated).",
+						ErrorMessage = $"Emulator process for '{deviceOrAvdName}' is no longer available (no process associated): {e}",
 					};
 				}