DE-1538 Add endpoint for Running Inbox Placement Test

[vtopc]

https://documentation.mailgun.com/docs/inboxready/api-reference/optimize/inboxready/inbox-placement/post-v4-inbox-tests#/docs/inboxready/api-reference/optimize/inboxready/inbox-placement/get-v4-inbox-sharing-public--shareid-

[Copilot]

Pull request overview

Adds support in the Go client for running InboxReady “Inbox Placement” tests (POST /v4/inbox/tests), aligning client types/mocks/tests with the generated InboxReady OpenAPI models.

Changes:

• Added CreateInboxPlacementTest to the client and Mailgun interface, plus a basic unit test.
• Introduced new mtypes aliases/constants for the Inbox Placement endpoint and request/response models.
• Updated OpenAPI codegen tooling in the Makefile and regenerated internal/types/inboxready models with oapi-codegen v2.8.0.

Reviewed changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
mtypes/inbox_placement.go	Adds Inbox Placement constants and exported request/response type aliases.
mocks/mock.go	Registers Inbox Placement routes in the mock server.
mocks/mock_inbox_placement.go	Implements mock POST /v4/inbox/tests handler/response.
Makefile	Adds pinned oapi-codegen v2.8.0 install target and uses it for model generation.
mailgun.go	Adds CreateInboxPlacementTest to the Mailgun interface (and reorders API key methods).
internal/types/inboxready/model.gen.go	Regenerated OpenAPI models using oapi-codegen v2.8.0.
inbox_placement.go	Implements (*Client).CreateInboxPlacementTest.
inbox_placement_test.go	Adds a test covering the new endpoint integration with mocks.

Files not reviewed (1)

• internal/types/inboxready/model.gen.go: Generated file

[vtopc]

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