feat: Add function to retrieve all ephemeral environments

[lourens-octopus]

In order to be able to select an ephemeral environment to deploy to, we have to have the ability to find all ephemeral environments. This code review adds a function that will retrieve all ephemeral environments to the user.

[sc-122277]

[Copilot]

Pull Request Overview

Adds support for retrieving ephemeral environments by introducing V2 environment query types, response models, and a service function to fetch all ephemeral environments.

• Introduces EphemeralEnvironment and related V2 response wrapper types.
• Adds EnvironmentV2Query and a new template including type filtering.
• Implements GetAllEphemeralEnvironments to fetch all ephemeral environments.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
pkg/environments/ephemeralenvironments/ephemeral_environment.go	Adds models for ephemeral environment V2 responses.
pkg/environments/environment_v2_query.go	Adds query struct supporting type filtering for V2 endpoints.
pkg/environments/environment_service.go	Adds V2 template constant and a function to retrieve all ephemeral environments.

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[dylanlerch]

Good start. I'd prefer that we support all of the V2 functionality rather than having an EE specific method that skips paging.

[dylanlerch]

This also supports ids and partial name, any reason to not include those here?

[dylanlerch]

Any reason to not just support all of the V2 functionality (and let the caller specify if they just need ephemeral environments) rather than having a typed method for ephemeral enviornments that skips paging?

I think it would be better to just support all of the V2 endpoint functionality here rather than having separate methods for different types, and the caller can call it how they need.