Thinking Tokens/Text never appears with BYOK models regardless of endpoint type

### Describe the bug

Thinking Tokens/Text never appears with BYOK models regardless of endpoint type

### Affected version

1.0.61

### Steps to reproduce the behavior

Ask a question or any directive that would cause the model to think. And you will observe that the Thinking text or thinking tokens never appear on the display regardless of the settings you give to co-pilot.

### Expected behavior

As user I'm expecting to see the thinking text that the model is going through while it's contemplating or thinking what to do.

### Additional context

In many occasions I just don't know if the connection is lost or is there a bug, because I do not observe the model thinking. Also when it's thinking for too long I have no way or recourse of observing if it went into a thinking loop.

El issue no indica archivos fuente, pruebas ni puntos de entrada. Reproduce el problema con un modelo BYOK en los distintos tipos de endpoint y con las configuraciones relevantes de Copilot, y luego rastrea dónde debería llegar a la pantalla la salida de thinking del modelo. Se considera terminado cuando el texto de thinking o las actualizaciones de tokens son visibles mientras el modelo está procesando.

Escrito por el modelo de indexación a partir del texto del issue.