feat: emit events for trafficManagerProfile

[zhiying-lin]

What type of PR is this?
/kind feature

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Requirements:

• run make reviewable for basic local test
• Read and followed fleet-networking's Code of conduct.
• uses conventional commit messages
• includes documentation
• adds unit tests

How has this code been tested

Special notes for your reviewer

[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 1 line in your changes missing coverage. Please review.

Project coverage is 80.30%. Comparing base (7473224) to head (f9e714f).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...ontrollers/hub/trafficmanagerprofile/controller.go	87.50%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #309   +/-   ##
=======================================
  Coverage   80.29%   80.30%           
=======================================
  Files          29       29           
  Lines        4101     4108    +7     
=======================================
+ Hits         3293     3299    +6     
- Misses        643      644    +1     
  Partials      165      165           

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[Copilot]

Pull Request Overview

This PR introduces event emission for the TrafficManagerProfile controller to improve observability of key operations such as creation, update, and deletion. Key changes include:

• Adding an EventRecorder to the Reconciler and initializing it in tests and main.
• Updating controller logic to record events for API errors, successful programming, and deletion.
• Enhancing integration tests to validate that the correct events are emitted during different operation scenarios.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
pkg/controllers/hub/trafficmanagerprofile/suite_test.go	Adds event recorder initialization in test setup.
pkg/controllers/hub/trafficmanagerprofile/controller_integration_test.go	Introduces helper functions and assertions to validate emitted events in various cases.
pkg/controllers/hub/trafficmanagerprofile/controller.go	Updates delete and update handlers to record events on error and success.
cmd/hub-net-controller-manager/main.go	Passes the event recorder to the controller during manager setup.