GHSA-8g2f-g3gq-5rjv: djust's observability endpoints are network-exposed: the localhost gate is an opt-in middleware the docs omit,

### Impact djust's observability endpoints expose live view/session state and a remote method-invocation surface (`eval_handler`). The localhost restriction was an **opt-in middleware that the documented setup omits**; the views themselves enforced only `DEBUG`. In the misconfigured-but-documented scenario (DEBUG on, middleware not installed) a non-localhost client could read live application state and invoke handlers remotely. ### Patches Fixed in **djust 1.0.7**. …