Improve SNMP discovery item context

backend/app/api/discovery.py

@@ -87,6 +87,7 @@ def _monitorable_items(discovered: DiscoveredSnmpDevice) -> list[SnmpDiscoveryIt
                 group="Device Health",
                 label="Device uptime",
                 unit="seconds",
+                current_value=_format_duration(discovered.uptime_seconds),
             )
         )
     items.extend(
@@ -96,6 +97,7 @@ def _monitorable_items(discovered: DiscoveredSnmpDevice) -> list[SnmpDiscoveryIt
             group=item.group,
             label=item.label,
             unit=item.unit,
+            current_value=item.current_value,
         )
         for item in discovered.health_items
     )
@@ -109,6 +111,7 @@ def _monitorable_items(discovered: DiscoveredSnmpDevice) -> list[SnmpDiscoveryIt
                     item_type="interface_status",
                     group=group,
                     label=f"{interface.label} status",
+                    current_value=_interface_status_value(interface.admin_status, interface.oper_status),
                 ),
                 SnmpDiscoveryItemRead(
                     item_id=f"{item_prefix}.traffic",
@@ -116,6 +119,7 @@ def _monitorable_items(discovered: DiscoveredSnmpDevice) -> list[SnmpDiscoveryIt
                     group=group,
                     label=f"{interface.label} traffic",
                     unit="bps",
+                    current_value="Rate after first check",
                 ),
                 SnmpDiscoveryItemRead(
                     item_id=f"{item_prefix}.errors",
@@ -127,3 +131,22 @@ def _monitorable_items(discovered: DiscoveredSnmpDevice) -> list[SnmpDiscoveryIt
             ]
         )
     return items
+
+
+def _format_duration(seconds: int | None) -> str | None:
+    if seconds is None:
+        return None
+    days = seconds // 86_400
+    hours = (seconds % 86_400) // 3_600
+    minutes = (seconds % 3_600) // 60
+    if days:
+        return f"{days}d {hours}h"
+    if hours:
+        return f"{hours}h {minutes}m"
+    return f"{minutes}m"
+
+
+def _interface_status_value(admin_status: str | None, oper_status: str | None) -> str | None:
+    if admin_status and oper_status:
+        return f"admin {admin_status}, oper {oper_status}"
+    return admin_status or oper_status