Add ez-assistant and kerberos service folders

docker-compose/ez-assistant/apps/ios/Sources/Chat/ChatSheet.swift

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+import MoltbotChatUI
+import MoltbotKit
+import SwiftUI
+
+struct ChatSheet: View {
+    @Environment(\.dismiss) private var dismiss
+    @State private var viewModel: MoltbotChatViewModel
+    private let userAccent: Color?
+
+    init(gateway: GatewayNodeSession, sessionKey: String, userAccent: Color? = nil) {
+        let transport = IOSGatewayChatTransport(gateway: gateway)
+        self._viewModel = State(
+            initialValue: MoltbotChatViewModel(
+                sessionKey: sessionKey,
+                transport: transport))
+        self.userAccent = userAccent
+    }
+
+    var body: some View {
+        NavigationStack {
+            MoltbotChatView(
+                viewModel: self.viewModel,
+                showsSessionSwitcher: true,
+                userAccent: self.userAccent)
+                .navigationTitle("Chat")
+                .navigationBarTitleDisplayMode(.inline)
+                .toolbar {
+                    ToolbarItem(placement: .topBarTrailing) {
+                        Button {
+                            self.dismiss()
+                        } label: {
+                            Image(systemName: "xmark")
+                        }
+                        .accessibilityLabel("Close")
+                    }
+                }
+        }
+    }
+}