support topic compaction

[freeznet]

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Fixes #56

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[Copilot]

Pull Request Overview

This PR introduces support for the compactionThreshold field on PulsarTopic, enabling automatic topic compaction based on size.

• Added CompactionThreshold to the API types, CRD schema, deep-copy logic, and sample.
• Integrated CompactionThreshold in admin interface, reconciliation logic, and live tests.
• Enabled topic-level policies in the CI cluster configuration.

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/utils/spec.go	Added MakePulsarTopicWithCompactionThreshold test helper
tests/operator/resources_test.go	New tests for create/update/remove of compaction threshold
pkg/connection/reconcile_topic.go	Include CompactionThreshold in TopicParams and log action
pkg/admin/interface.go	Exposed CompactionThreshold in TopicParams interface
pkg/admin/impl.go	Implemented SetCompactionThreshold policy call
config/samples/resource_v1alpha1_pulsartopic.yaml	Documented compactionThreshold in sample YAML
config/crd/bases/resource.streamnative.io_pulsartopics.yaml	Added CRD schema entry for compactionThreshold
api/v1alpha1/zz_generated.deepcopy.go	Generated deep-copy logic for CompactionThreshold
api/v1alpha1/pulsartopic_types.go	Defined optional CompactionThreshold field in spec
.ci/clusters/values.yaml	Enabled topicLevelPoliciesEnabled in broker config

Comments suppressed due to low confidence (3)

tests/operator/resources_test.go:375

• The import alias v1alphav1 here is inconsistent with the rest of the code (which uses v1alpha1). Consider renaming to v1alpha1 for clarity and consistency.

				compactionTopic     *v1alphav1.PulsarTopic

tests/operator/resources_test.go:412

• After updating the compaction threshold, add an assertion to verify topic.Spec.CompactionThreshold equals newThreshold to ensure the field was persisted correctly.

				topic.Spec.CompactionThreshold = &newThreshold

tests/operator/resources_test.go:431

• Add a test assertion after setting CompactionThreshold to nil to confirm that the field has been removed from the spec.

				topic.Spec.CompactionThreshold = nil