Expanding mtpnc status to include delete status

[shreyashastantram]

Reason for Change:

Issue Fixed:

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• relevant PR labels added

Notes:

[Copilot]

Pull Request Overview

Expands MultitenantPodNetworkConfig visibility and lifecycle status tracking.

• Adds PodUID and Status printer columns; removes PodNetwork printer column.
• Introduces new MTPNCStatusDeleting status constant.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
crd/multitenancy/manifests/multitenancy.acn.azure.com_multitenantpodnetworkconfigs.yaml	Adjusts CRD printer columns to include PodUID and Status, removes PodNetwork.
crd/multitenancy/api/v1alpha1/multitenantpodnetworkconfig.go	Adds PodUID and Status printcolumn annotations and new Deleting status constant.

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[Copilot]

[nitpick] The new status MTPNCStatusDeleting is introduced without accompanying documentation on when it is set or how controllers should transition from/to it. Please add a brief comment above the status constants explaining each status, especially Deleting (e.g., whether it indicates a finalizer in progress, resource cleanup, or a terminal state).