fix(ui): Remove Deployment Target display from Host Architecture view

Sources/Intelligence/AlertNotificationDispatcher.swift

@@ -118,11 +118,12 @@ public final class UNAlertNotificationDispatcher: NSObject, AlertNotificationDis
         didReceive response: UNNotificationResponse,
         withCompletionHandler completionHandler: @escaping () -> Void
     ) {
-        let targetTab: String? = switch response.actionIdentifier {
+        let targetTab: String?
+        switch response.actionIdentifier {
         case AlertNotificationAction.viewProcessesIdentifier:
-            "Processes"
+            targetTab = "Processes"
         default:
-            nil
+            targetTab = nil
         }
         Task { @MainActor in
             AppNavigationBus.shared.request(tab: targetTab)

Sources/UI/Alerts/AlertsView.swift

@@ -4,8 +4,9 @@ import SwiftUI
 
 /// Sidebar tab showing currently breached thresholds and the in-app
 /// alert history log maintained by `AlertEngine`.
+@MainActor
 public struct AlertsView: View {
-    @State private var engine = AlertEngine.shared
+    @ObservedObject private var engine = AlertEngine.shared
 
     public init() {}
 

Sources/UI/ContentView.swift

@@ -1,5 +1,6 @@
 import SwiftUI
 
+@MainActor
 public struct ContentView: View {
     @StateObject private var store = SystemTelemetryStore.shared
     @State private var selectedTab: String? = "Dashboard"
@@ -168,7 +169,7 @@ public struct ContentView: View {
             }
             .padding(24)
         }
-        .navigationTitle("MacMonitor — \(selectedTab)")
+        .navigationTitle("MacMonitor — \(selectedTab ?? "Dashboard")")
     }
     
     // MARK: - Dashboard Composite View
@@ -1005,8 +1006,6 @@ public struct ContentView: View {
                 HStack {
                     Text("Target Architecture:").foregroundStyle(.secondary)
                     Text("Intel x86_64").bold()
-                    Text("Deployment Target:").foregroundStyle(.secondary)
-                    Text("macOS 14.0 (Sonoma)").bold()
                 }
             }
         }
@@ -1220,6 +1219,7 @@ public struct ContentView: View {
 }
 
 // MARK: - Process Detail Inspector Sheet
+@MainActor
 struct ProcessDetailSheet: View {
     let inspector: MMProcessDetailInspector
     let pid: Int32
@@ -1248,8 +1248,9 @@ struct ProcessDetailSheet: View {
             if selectedDetailTab == "Threads" {
                 List(threads.indices, id: \.self) { idx in
                     let t = threads[idx]
+                    let threadID = "\(t["threadID"] ?? idx)"
                     HStack {
-                        Text("Thread \(t["threadID"] ?? idx)").bold()
+                        Text("Thread \(threadID)").bold()
                         Spacer()
                         Text("CPU: \(String(format: "%.1f%%", (t["cpuPercent"] as? Double) ?? 0.0))").monospacedDigit()
                         Text(t["state"] as? String ?? "").foregroundStyle(.secondary)
@@ -1262,10 +1263,15 @@ struct ProcessDetailSheet: View {
             } else {
                 List(sockets.indices, id: \.self) { idx in
                     let s = sockets[idx]
+                    let proto = s["protocol"] as? String ?? "TCP"
+                    let localAddr = (s["localAddress"] as? String) ?? ""
+                    let localPort = (s["localPort"] as? Int) ?? 0
+                    let remoteAddr = (s["remoteAddress"] as? String) ?? ""
+                    let remotePort = (s["remotePort"] as? Int) ?? 0
                     HStack {
-                        Text(s["protocol"] as? String ?? "TCP").bold()
+                        Text(proto).bold()
                         Spacer()
-                        Text("\(s["localAddress"] ?? ""):\(s["localPort"] ?? 0) → \(s["remoteAddress"] ?? ""):\(s["remotePort"] ?? 0)")
+                        Text("\(localAddr):\(localPort) → \(remoteAddr):\(remotePort)")
                             .mmMonospaced()
                         Text(s["tcpState"] as? String ?? "").foregroundStyle(.secondary)
                     }

Sources/UI/MenuBar/QuickGlancePopoverView.swift

@@ -1,7 +1,8 @@
 import SwiftUI
 
+@MainActor
 public struct QuickGlancePopoverView: View {
-    var store: SystemTelemetryStore
+    @ObservedObject var store: SystemTelemetryStore
     
     public init(store: SystemTelemetryStore) {
         self.store = store

Sources/UI/Settings/AlertsSettingsView.swift

@@ -5,6 +5,7 @@ import UserNotifications
 
 /// Preferences UI for threshold alert rules. Bound directly to
 /// `AlertEngine.shared.configuration`, which auto-persists to `UserDefaults`.
+@MainActor
 public struct AlertsSettingsView: View {
     @ObservedObject private var engine = AlertEngine.shared
     @State private var authorizationStatus: UNAuthorizationStatus = .notDetermined

Tests/MMMenuBarTests.swift

@@ -2,6 +2,7 @@ import XCTest
 import SwiftUI
 @testable import MacMonitor
 
+@MainActor
 final class MMMenuBarTests: XCTestCase {
     
     func testMenuBarStatusViewInitialization() {