Is your feature request related to a problem? Please describe.
Currently, reviewers have to manually verify whether all tests have passed before approving or merging a PR. This slows down the review workflow.

Describe the solution you'd like
Create a GitHub workflow that automatically comments LGTM on a PR when all tests pass successfully.
If the bot comments LGTM, an LGTM label should be added to the PR as well.

Describe alternatives you've considered

• Manually labeling PRs after verifying test status — currently time-consuming.

• Asking contributors to manually comment LGTM — prone to error and not automated.

Approach to be followed (optional)

• Create a new GitHub Actions workflow (similar to .github/workflows/auto-assign.yml as reference).

• Trigger on successful completion of the test workflow.

• The action should:

1. Comment LGTM on the PR once all tests pass.
2. Automatically apply the LGTM label to the PR.

Additional context
None