chore: move the envelope CRDs to the v1beta1 API group

[michaelawyu]

Description of your changes

As discussed offline, this PR moves the envelope CRDs to the v1beta1 API group.

I have:

• Run make reviewable to ensure this PR is ready for review.

How has this code been tested

N/A, API only change

Special notes for your reviewer

N/A

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 44 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
apis/placement/v1beta1/zz_generated.deepcopy.go	0.00%	44 Missing ⚠️

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[michaelawyu]

The APIs are updated per offline discussion.

[Copilot]

Pull Request Overview

This PR migrates envelope CRDs from the v1alpha1 API group to the v1beta1 API group. Key changes include updating apiVersion fields in YAML examples, modifying the CRD schema (replacing the old spec field with data), and regenerating deepcopy functions for the new API version.

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
examples/envelopes/namespaced.yaml	Updated apiVersion to v1beta1 and replaced spec.manifests with data mapping
examples/envelopes/clusterscoped.yaml	Updated apiVersion to v1beta1 and replaced spec.manifests with data mapping
config/crd/bases/placement.kubernetes-fleet.io_resourceenvelopes.yaml	Updated version, added a schema definition for the data field, and provided descriptive text
config/crd/bases/placement.kubernetes-fleet.io_clusterresourceenvelopes.yaml	Updated version and schema to use the new data field
apis/placement/v1beta1/*	Updated package version and regenerated deepcopy functions for the new API group
apis/placement/v1beta1/envelope_types.go	Changed package name and replaced EnvelopeSpec with Data in CRD type definitions
apis/placement/v1alpha1/zz_generated.deepcopy.go	Removed deepcopy functions for types shifted to v1beta1

Comments suppressed due to low confidence (2)

apis/placement/v1alpha1/zz_generated.deepcopy.go:161

• [nitpick] If the v1alpha1 API group is fully deprecated, consider removing legacy deepcopy functions to reduce long-term maintenance overhead.

func (in *ClusterResourceEnvelope) DeepCopyInto(out *ClusterResourceEnvelope) {

examples/envelopes/namespaced.yaml:1

• Confirm that client code and documentation have been updated to account for the change from using the 'spec' field to the 'data' field for embedded manifests.

apiVersion: placement.kubernetes-fleet.io/v1beta1

[Copilot]

Consider adding an inline comment that explains the structure and purpose of the new 'data' field, clarifying that each key typically represents a filename that identifies a manifest.

Suggested change

	type: string
	type: string
	# The 'data' field contains manifests wrapped in this envelope.
	# Each key in the 'data' object typically represents a filename identifying a manifest.

[Copilot]

[nitpick] Ensure that the transition from using a dedicated EnvelopeSpec to a direct 'data' mapping is thoroughly documented in code comments and external documentation for consistency.