ui(macos): make master discovery selectable

apps/macos/Sources/Clawdis/GeneralSettings.swift

@@ -151,7 +151,7 @@ struct GeneralSettings: View {
                     .trimmingCharacters(in: .whitespacesAndNewlines).isEmpty)
             }
 
-            MasterDiscoveryInlineList(discovery: self.masterDiscovery) { master in
+            MasterDiscoveryInlineList(discovery: self.masterDiscovery, currentTarget: self.state.remoteTarget) { master in
                 self.applyDiscoveredMaster(master)
             }
             .padding(.leading, 58)

apps/macos/Sources/Clawdis/MasterDiscoveryMenu.swift

@@ -4,7 +4,9 @@ import SwiftUI
 // swiftlint:disable:next inclusive_language
 struct MasterDiscoveryInlineList: View {
     @ObservedObject var discovery: MasterDiscoveryModel
+    var currentTarget: String?
     var onSelect: (MasterDiscoveryModel.DiscoveredMaster) -> Void
+    @State private var hoveredMasterID: MasterDiscoveryModel.DiscoveredMaster.ID?
 
     var body: some View {
         VStack(alignment: .leading, spacing: 6) {
@@ -24,22 +26,54 @@ struct MasterDiscoveryInlineList: View {
             } else {
                 VStack(alignment: .leading, spacing: 6) {
                     ForEach(self.discovery.masters.prefix(6)) { master in
+                        let target = self.suggestedSSHTarget(master)
+                        let selected = target != nil && self.currentTarget?.trimmingCharacters(in: .whitespacesAndNewlines) == target
+
                         Button {
-                            self.onSelect(master)
+                            withAnimation(.spring(response: 0.25, dampingFraction: 0.9)) {
+                                self.onSelect(master)
+                            }
                         } label: {
-                            HStack(spacing: 8) {
-                                Text(master.displayName)
-                                    .lineLimit(1)
-                                Spacer()
-                                if let host = master.tailnetDns ?? master.lanHost {
-                                    Text(host)
-                                        .font(.caption2)
-                                        .foregroundStyle(.secondary)
+                            HStack(alignment: .center, spacing: 10) {
+                                VStack(alignment: .leading, spacing: 2) {
+                                    Text(master.displayName)
+                                        .font(.callout.weight(.semibold))
                                         .lineLimit(1)
+                                        .truncationMode(.tail)
+                                    if let target {
+                                        Text(target)
+                                            .font(.caption.monospaced())
+                                            .foregroundStyle(.secondary)
+                                            .lineLimit(1)
+                                            .truncationMode(.middle)
+                                    }
+                                }
+                                Spacer(minLength: 0)
+                                if selected {
+                                    Image(systemName: "checkmark.circle.fill")
+                                        .foregroundStyle(Color.accentColor)
+                                } else {
+                                    Image(systemName: "arrow.right.circle")
+                                        .foregroundStyle(.secondary)
                                 }
                             }
+                            .padding(.horizontal, 10)
+                            .padding(.vertical, 8)
+                            .frame(maxWidth: .infinity, alignment: .leading)
+                            .background(
+                                RoundedRectangle(cornerRadius: 10, style: .continuous)
+                                    .fill(self.rowBackground(selected: selected, hovered: self.hoveredMasterID == master.id)))
+                            .overlay(
+                                RoundedRectangle(cornerRadius: 10, style: .continuous)
+                                    .strokeBorder(
+                                        selected ? Color.accentColor.opacity(0.45) : Color.clear,
+                                        lineWidth: 1))
+                            .contentShape(Rectangle())
                         }
                         .buttonStyle(.plain)
+                        .onHover { hovering in
+                            self.hoveredMasterID = hovering ? master.id : (self.hoveredMasterID == master.id ? nil : self.hoveredMasterID)
+                        }
                     }
                 }
                 .padding(10)
@@ -48,7 +82,24 @@ struct MasterDiscoveryInlineList: View {
                         .fill(Color(NSColor.controlBackgroundColor)))
             }
         }
-        .help("Discover Clawdis masters on your LAN")
+        .help("Click a discovered master to fill the SSH target.")
+    }
+
+    private func suggestedSSHTarget(_ master: MasterDiscoveryModel.DiscoveredMaster) -> String? {
+        let host = master.tailnetDns ?? master.lanHost
+        guard let host else { return nil }
+        let user = NSUserName()
+        var target = "\(user)@\(host)"
+        if master.sshPort != 22 {
+            target += ":\(master.sshPort)"
+        }
+        return target
+    }
+
+    private func rowBackground(selected: Bool, hovered: Bool) -> Color {
+        if selected { return Color.accentColor.opacity(0.12) }
+        if hovered { return Color.secondary.opacity(0.08) }
+        return Color.clear
     }
 }
 

apps/macos/Sources/Clawdis/Onboarding.swift

@@ -247,7 +247,7 @@ struct OnboardingView: View {
                                 .frame(width: fieldWidth)
                         }
 
-                        MasterDiscoveryInlineList(discovery: self.masterDiscovery) { master in
+                        MasterDiscoveryInlineList(discovery: self.masterDiscovery, currentTarget: self.state.remoteTarget) { master in
                             self.applyDiscoveredMaster(master)
                         }
                         .frame(width: fieldWidth, alignment: .leading)