fix: align namespace and topic policies operation

[freeznet]

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[Copilot]

Pull request overview

This PR aligns namespace and topic policy operations by introducing explicit backlog quota type support and improving validation for backlog quota configurations. The changes add stricter validation requirements and enhance policy management capabilities for both namespaces and topics.

Key changes:

• Adds BacklogQuotaType field to topic and namespace specs with enum validation (destination_storage, message_age)
• Refactors backlog quota handling into a shared buildBacklogQuota function with improved validation
• Adds support for managing persistence policies, inactive topic policies, subscription expiration time, and namespace properties in namespace reconciliation
• Increases operator memory limits to accommodate enhanced policy management

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/utils/spec.go	Updates test helper functions to explicitly set backlog quota retention policy and type
tests/operator/resources_test.go	Adds comprehensive tests for subscription expiration time, backlog quota validation, and clearing various policies
pkg/connection/reconcile_topic.go	Adds BacklogQuotaType parameter to topic creation and logging
pkg/admin/interface.go	Adds BacklogQuotaType field to TopicParams struct
pkg/admin/impl.go	Refactors backlog quota logic into shared buildBacklogQuota function, adds handlers for persistence policies, inactive topic policies, subscription expiration, and properties
docs/pulsar_topic.md	Updates documentation to indicate backlogQuotaRetentionPolicy is conditional (required when limits are set)
docs/pulsar_namespace.md	Updates documentation with conditional requirement and adds example with backlogQuotaRetentionPolicy
config/manager/manager.yaml	Increases memory limits from 128Mi to 512Mi and requests from 64Mi to 128Mi
config/default/manager_auth_proxy_patch.yaml	Increases memory limits and requests to match manager.yaml
config/crd/bases/resource.streamnative.io_pulsartopics.yaml	Adds enum validations for backlogQuotaRetentionPolicy and backlogQuotaType fields
config/crd/bases/resource.streamnative.io_pulsarnamespaces.yaml	Adds enum validations for backlogQuotaRetentionPolicy field
charts/pulsar-resources-operator/crds/resource.streamnative.io_pulsartopics.yaml	Adds enum validations matching the base CRD
charts/pulsar-resources-operator/crds/resource.streamnative.io_pulsarnamespaces.yaml	Adds enum validations matching the base CRD
api/v1alpha1/zz_generated.deepcopy.go	Adds generated DeepCopy code for BacklogQuotaType field
api/v1alpha1/pulsartopic_types.go	Adds BacklogQuotaType field with enum validation to PulsarTopicSpec
api/v1alpha1/pulsarnamespace_types.go	Adds enum validation kubebuilder marker to BacklogQuotaRetentionPolicy field

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