[Feature] Scope Enovy Lib to the Authorization Response field.

[fjogeleit]

Problem Statement

Currently the envoy.Lib is part of the general CEL environment which makes it available in all expressions.

The intention of this lib is scoped to define how the request/response should be modefied by a given authorization rule.

Solution Description

Remove the enoy.Lib from the global cel env constructor but also ensure that required envoy types are available in e.g. variable expressions as they can access the original request object.

Alternatives

No response

Additional Context

No response

Research

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