Add Status::Info for informational sub-services

Agent uses Status enum to control display:
- Status::Info: no icon, no status text (VPN IP)
- Other statuses: icon + text (containers, nginx sites)

Dashboard checks status, no hardcoded service_type exceptions.

Version: v0.1.237

shared/src/metrics.rs

@@ -82,12 +82,13 @@ impl MetricValue {
 /// Health status for metrics
 #[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
 pub enum Status {
-    Inactive, // Lowest priority
-    Unknown,  // 
-    Offline,  // 
-    Pending,  // 
-    Ok,       // 5th place - good status has higher priority than unknown states
-    Warning,  // 
+    Info,     // Lowest priority - informational data with no status (no icon)
+    Inactive, //
+    Unknown,  //
+    Offline,  //
+    Pending,  //
+    Ok,       // Good status has higher priority than unknown states
+    Warning,  //
     Critical, // Highest priority
 }
 
@@ -223,6 +224,17 @@ impl HysteresisThresholds {
                     Status::Ok
                 }
             }
+            Status::Info => {
+                // Informational data shouldn't be used with hysteresis calculations
+                // Treat like Unknown if it somehow ends up here
+                if value >= self.critical_high {
+                    Status::Critical
+                } else if value >= self.warning_high {
+                    Status::Warning
+                } else {
+                    Status::Ok
+                }
+            }
         }
     }
 }