Include affected interface names in Device Health Report topology issue entries

The Device Health Report currently reports a count of L2 topology issues per device but does not identify which specific interface is associated with each flagged issue. When a device has multiple interfaces, customers cannot determine which one requires attention without manual investigation. This enhancement would add interface-level detail to topology issue entries in the Device Health Report, so each flagged issue clearly references the affected interface name. Customers managing a large number of topology issues would be able to prioritize and resolve them more efficiently, reducing the manual effort needed to isolate the root cause among multiple interfaces on a device.