Server groups

[k0ka]

fixes#434

[Copilot]

Pull request overview

Adds Compute v2 “Server Groups” support to the SDK, addressing issue #434 by introducing a ServerGroup model plus the corresponding API/service surface, tests, samples, and docs.

Changes:

• Added ServerGroup model with list/retrieve/create/delete support and response-shape compatibility for policy vs policies.
• Exposed server-group operations in Compute\v2\Api + Compute\v2\Service, including query params like all_projects, limit, and offset.
• Added unit tests, sample tests, runnable samples, and Sphinx docs for server groups.

Reviewed changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/Compute/v2/Api.php	Adds REST operation definitions for server-group CRUD/list.
src/Compute/v2/Models/ServerGroup.php	Implements the ServerGroup resource behavior and hydration rules.
src/Compute/v2/Params.php	Adds parameter schemas for server-group list/create options (incl. rules).
src/Compute/v2/Service.php	Adds top-level service methods: list/create/get server groups.
tests/unit/Compute/v2/ServiceTest.php	Adds service-level tests for server-group create/list/get.
tests/unit/Compute/v2/Models/ServerGroupTest.php	Adds model-level tests for server-group retrieve/create/delete and option validation.
tests/unit/Compute/v2/Fixtures/*.resp	Adds mocked HTTP fixtures for server-group list/get/post.
samples/Compute/v2/server_groups/*.php	Adds user-facing sample scripts for server-group workflows.
tests/sample/Compute/v2/ServerGroupTest.php	Adds integration-style sample test coverage for server groups.
doc/services/compute/v2/server-groups.rst	Adds end-user documentation for server groups, including microversion guidance.
doc/services/compute/v2/index.rst	Links the new server-groups doc page into the Compute v2 docs index.
AGENTS.md	Documents repository architecture, conventions, and compatibility/testing expectations.

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[Copilot]

Pull request overview

Copilot reviewed 17 out of 17 changed files in this pull request and generated 2 comments.

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[Copilot]

Pull request overview

Copilot reviewed 18 out of 18 changed files in this pull request and generated no new comments.

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