Fixes to address continuous spinner on api call failure

ClaudeUsage/Models/UsageData.swift

@@ -10,6 +10,16 @@ struct UsageLimit: Codable, Equatable {
     }
 }
 
+struct ExtraUsage: Codable, Equatable {
+    let isEnabled: Bool
+    let utilization: Double?
+
+    enum CodingKeys: String, CodingKey {
+        case isEnabled = "is_enabled"
+        case utilization
+    }
+}
+
 struct UsageData: Codable, Equatable {
     let fiveHour: UsageLimit
     let sevenDay: UsageLimit
@@ -18,7 +28,7 @@ struct UsageData: Codable, Equatable {
     let sevenDayOauthApps: UsageLimit?
     let sevenDayCowork: UsageLimit?
     let iguanaNecktie: UsageLimit?
-    let extraUsage: UsageLimit?
+    let extraUsage: ExtraUsage?
 
     enum CodingKeys: String, CodingKey {
         case fiveHour = "five_hour"

ClaudeUsage/Models/UsageViewModel.swift

@@ -209,7 +209,9 @@ class UsageViewModel: ObservableObject {
         if let oa = data.sevenDayOauthApps { limits.append(oa) }
         if let c = data.sevenDayCowork { limits.append(c) }
         if let i = data.iguanaNecktie { limits.append(i) }
-        if let e = data.extraUsage { limits.append(e) }
+        if let e = data.extraUsage, let util = e.utilization {
+            limits.append(UsageLimit(utilization: util, resetsAt: nil))
+        }
         return limits.map(\.utilization).max() ?? 0
     }
 
@@ -240,7 +242,9 @@ class UsageViewModel: ObservableObject {
         if let oa = data.sevenDayOauthApps { results.append(("OAuth Apps", oa)) }
         if let c = data.sevenDayCowork { results.append(("Cowork", c)) }
         if let i = data.iguanaNecktie { results.append(("Other", i)) }
-        if let e = data.extraUsage { results.append(("Extra Usage", e)) }
+        if let e = data.extraUsage, let util = e.utilization {
+            results.append(("Extra Usage", UsageLimit(utilization: util, resetsAt: nil)))
+        }
         return results
     }
 

ClaudeUsage/Views/ContentView.swift

@@ -160,6 +160,27 @@ struct ContentView: View {
                 Divider()
 
                 toolbarButtons
+            } else if viewModel.errorState == .networkError {
+                VStack(spacing: 12) {
+                    Image(systemName: "exclamationmark.triangle.fill")
+                        .font(.system(size: 32))
+                        .foregroundColor(.orange)
+                    Text("Network Error")
+                        .font(.headline)
+                    Text("Could not load usage data. Check your credentials and network connection.")
+                        .font(.system(size: 12))
+                        .foregroundColor(.secondary)
+                        .multilineTextAlignment(.center)
+                    HStack(spacing: 8) {
+                        Button("Retry") {
+                            viewModel.fetchNow()
+                        }
+                        Button("Open Settings") {
+                            openSettings()
+                        }
+                    }
+                }
+                .padding()
             } else if viewModel.authStatus == .connected {
                 VStack(spacing: 12) {
                     ProgressView()