[CI] Add CI gate for agentsight: require unit test coverage >= 80%

[chengshuyi]

Background

Currently, the agentsight module lacks a CI quality gate for unit test coverage. As the codebase grows, it is important to maintain a minimum level of test coverage to ensure code quality and prevent regressions.

Proposal

Add a CI check that enforces a minimum unit test coverage threshold of 80% for the agentsight module.

Requirements

• Integrate a coverage measurement tool into the CI pipeline (e.g., coverage.py, codecov, or equivalent)
• The CI pipeline should fail if the agentsight module's unit test coverage drops below 80%
• Coverage reports should be generated and accessible from CI run artifacts
• The threshold should be configurable to allow future adjustments

Acceptance Criteria

• CI pipeline includes a coverage check step for agentsight
• Build fails when coverage < 80%
• Coverage report is visible in CI results
• Documentation updated to reflect the new quality gate

[github-actions]

🔀 Issue Triage

This issue has been automatically assigned to @chengshuyi as the maintainer(s) of sight.

Maintainers, please review and triage this issue. Set a priority label and update the status as needed. Thanks! 🙏