[release-1.33] Migrate to contextual logging

[anndono]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

Cherry pick of logging migration(#9664 , #9707 , #9773 , #9778 ): This standardizes logging by migrating from a mix of plaintext and structured logging to contextual logging, improving consistency, clarity, and observability across the codebase.

Which issue(s) this PR fixes:

Fixes #
ref: #1575

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[k8s-ci-robot]

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[nilo19]

/ok-to-test

[Copilot]

Pull request overview

This PR migrates the logging implementation from a mix of klog plaintext and structured logging to contextual logging using a new pkg/log package. This is a cherry-pick of multiple logging migration PRs (#9664, #9707, #9773, #9778) for the release-1.33 branch, aimed at standardizing logging, improving consistency, clarity, and observability across the codebase.

Key Changes

• Replaces klog imports with sigs.k8s.io/cloud-provider-azure/pkg/log
• Migrates from klog.V().Info/Infof/Error/Errorf() to structured logging with key-value pairs
• Introduces logger initialization with log.Background().WithName() or log.FromContextOrBackground(ctx).WithName()

Reviewed changes

Copilot reviewed 63 out of 64 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/e2e/utils/kustoIngest.go	Migrates KustoIngest function to use contextual logging with structured key-value pairs
tests/e2e/e2e_test.go	Updates test logging to use log package with proper error handling
pkg/windows/service/service.go	Converts Windows service logging to contextual logging
pkg/util/node/node.go	Updates node utility logging with structured format
pkg/util/controller/testutil/test_utils.go	Migrates test utilities to use contextual logging from context
pkg/util/controller/node/controller_utils.go	Updates controller utilities with structured logging
pkg/provider/subnet/subnet.go	Converts subnet operations logging to contextual logging
pkg/provider/storage/*.go	Migrates storage-related logging across multiple files
pkg/provider/securitygroup/*.go	Updates security group logging with structured format
pkg/provider/azure_*.go	Comprehensive migration of Azure provider logging across 30+ files
pkg/nodeipam/*.go	Updates node IPAM controller logging to use contextual logging

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[nilo19]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: anndono, nilo19

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