feat(consumer): add a way to stop consumer

[simPod]

No description provided.

[Copilot]

Pull Request Overview

This PR refactors the consumer shutdown mechanism by extracting a new stop() method and resetting the shouldRun flag when starting the consumer.

• Extracted stop() method that sets shouldRun to false, called from shutdown()
• Added initialization of shouldRun = true at the start of doStart() to ensure clean state on each start

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.96%. Comparing base (9c2f544) to head (4e76144).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #247      +/-   ##
==========================================
+ Coverage   71.36%   71.96%   +0.60%     
==========================================
  Files           9        9              
  Lines         213      214       +1     
==========================================
+ Hits          152      154       +2     
+ Misses         61       60       -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[Copilot]

Pull Request Overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull Request Overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.