Reminder for pilot endpoints

> **Note for later**
> Once #421 is merged, we will have **two types of pilots**, each with different token types and API access:

1. New pilots
- Use a token exchanged from a secret.
- Can interact with the `/api/pilots/` route.

2. Legacy pilots
- Use tokens from the legacy exchange mechanism.
- Act like "bot users" (e.g., `lb_pilot`).
- Can only interact with the `/api/jobs/` route.

As interactions between pilots and DiracX increase, legacy pilots will be deprecated in favor of new pilots.
Until then, **both types must be supported**, and this distinction should be kept in mind.

This is applicable for #468