[webhook] Add log verbosity

[riptide-01]

Overview

Increased logs verbosity.

Changes made:

• Some log messages have been rewritten
• Additional fields have been added for display in logs
• Instead of using the default logger, logger of shell-operator has been forwarded
• Wrapping of returned errors
• Messages have been added for errors with status code 400
• Fixed a bug in tests where the shell-operator was initialized without a logger, resulting in a nil pointer dereference error.

What this PR does / why we need it

These changes are necessary to make logs easier to read and improve debugging.

Special notes for your reviewer

• Changes tested manually

[Copilot]

Pull request overview

This PR increases logging verbosity and consistency across the webhook stack by injecting the shell-operator logger through webhook managers/handlers/server, improving structured fields, and wrapping errors to add context for easier debugging.

Changes:

• Add logger plumbing via constructors/options for webhook server, managers, handlers, and webhook resources.
• Rewrite/augment log messages with additional structured fields; wrap returned errors with context.
• Add explicit 400 responses for invalid webhook requests; fix tests to initialize shell-operator with a logger.

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
test/hook/context/context_combiner.go	Update test helper to construct ShellOperator via constructor and provide a nop logger/metric storage to avoid nil logger deref.
pkg/webhook/server/server_test.go	Update test to use NewWebhookServer with a nop logger.
pkg/webhook/server/server.go	Add WebhookServer.Logger and NewWebhookServer constructor; use injected logger in Start().
pkg/webhook/conversion/manager.go	Add logger option/default; forward logger to handler/server; wrap errors with context.
pkg/webhook/conversion/handler.go	Use injected logger; add request-scoped fields; add 400 responses for invalid input; wrap handler errors.
pkg/webhook/conversion/crd_client_config.go	Wrap CRD get/update errors with context.
pkg/webhook/admission/resource.go	Inject logger into resources; improve logging and wrap list errors.
pkg/webhook/admission/manager.go	Add logger option/default; forward logger to handler/server/resources; wrap errors with context.
pkg/webhook/admission/handler.go	Use injected logger; add request-scoped fields; add 400 responses for invalid input; wrap handler errors.
pkg/shell-operator/operator.go	Switch some logs to op.logger; adjust admission event logging fields; tweak conversion failure message.
pkg/shell-operator/bootstrap.go	Pass shell-operator logger into admission/conversion webhook managers.
pkg/hook/hook_manager.go	Replace global logging with manager logger and improve structured logging fields.

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