[addon-operator] feat/minor improvements two

[ldmonster]

Overview

Move http services to separated files
Bump graphviz lib to fix compilations problem
Move task handling logic to task service
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What this PR does / why we need it

BEFORE:
We have task handling in Addon Operator.
All task handling functions was logic of Addon Operator.
Tasks handling functions knows about Shell Operator functions and actively use them

NOW:
We have Task Service which can work with new (Addon Operator) Task wrapper, which knows by himself how to handle task.
To isolate Shell Operator from tasks, we have Queue Service, which operate with Shell Operator (engine), and give to Tasks only hight level contract functions.

Special notes for your reviewer

[Copilot]

Pull Request Overview

This PR introduces minor improvements and refactoring to the addon-operator codebase, focusing on task handling, module management, and debug/metric endpoints. The changes improve context propagation in function signatures, update metric and log label usage to ensure consistency, and enhance debugging endpoints.

Reviewed Changes

Copilot reviewed 39 out of 40 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pkg/task/global-hook-enable-kubernetes-bindings/task.go	Implements task handler for global hooks with refined scheduling and log labels.
pkg/task/discover-helm-release/task.go	Adds task to discover Helm releases and create purge tasks.
pkg/task/apply-kube-config-values/task.go	Introduces a new task for applying Kubernetes configuration values with improved error logs.
pkg/module_manager/scheduler/scheduler.go	Refactors GetGraphImage to include a context argument for consistency with API changes.
pkg/module_manager/module_manager.go	Updates HandleKubeEvent and HandleScheduleEvent signatures to return tasks and use new factories.
pkg/module_manager/models/*	Updates metric label keys and improves logging for synchronization, helm, global, and basic hooks.
pkg/labels.go	Defines common log and metric label keys used throughout the code.
pkg/addon-operator/* (operator_test.go, metrics.go, http_server.go, etc.)	Adapts tests and HTTP handlers to new task handler service and context parameters; refines debug routes.
pkg/addon-operator/handler_module_manager.go	Refactors module manager event handling, including dynamic and kube config events.
pkg/addon-operator/handler_manager_events.go	Registers event handlers for schedule and Kubernetes events with task factories.
pkg/addon-operator/converge/converge.go	Changes type name for first run phase for clarity and implements Stringer for the converge event.
pkg/addon-operator/bootstrap.go and cmd/addon-operator/main.go	Improves bootstrap and main startup flow by initializing TaskService and adding more logging.

Files not reviewed (1)

• go.mod: Language not supported