commit_msg.txt

🧪 [test] add tests for classifyRuntimeAvailability

🎯 What: Added missing tests for classifyRuntimeAvailability in core/runtime/health.ts.
📊 Coverage: Added unit tests that cover scenarios of 0 probes, all reachable probes, all unreachable probes, mixed unreachable/reachable probes, and degraded probes. Tests all edge cases including combining degradation and unreachability reasons.
✨ Result: Reliable and robust test coverage for runtime health evaluation.

Signed-off-by: Jules <jules@example.com>