MLE-22946: Fix the bug of cluster level labels propagate

[pengzhouml]

No description provided.

[Copilot]

Pull Request Overview

This PR refactors the label and annotation handling system to properly propagate cluster-level labels throughout the codebase. The main change replaces global variables for labels/annotations with context-based storage and methods, ensuring proper scoping and propagation.

Key changes:

• Replaces global label/annotation variables with context-scoped storage
• Adds new methods to ClusterContext and OperatorContext for label/annotation management
• Updates all resource generation functions to use context-based label retrieval

Reviewed Changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
pkg/k8sutil/context.go	Adds label/annotation fields to contexts and implements getter/setter methods
pkg/k8sutil/common.go	Removes global variables and deprecated label/annotation functions
pkg/k8sutil/handler.go	Removes global label/annotation setup calls
pkg/k8sutil/service.go	Updates service generation to use context-based label retrieval
pkg/k8sutil/secret.go	Updates secret generation to use context-based label retrieval
pkg/k8sutil/networkPolicy.go	Updates network policy generation to use context-based label retrieval
pkg/k8sutil/marklogicServer.go	Updates MarkLogic group generation to use context-based label retrieval
pkg/k8sutil/ingress.go	Updates ingress generation to use context-based label retrieval
pkg/k8sutil/haProxy.go	Updates HAProxy configuration to use context-based label retrieval
pkg/k8sutil/configmap.go	Updates config map generation to use context-based label retrieval

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[barkhachoithani]

LGTM