Initial project setup - Phases 1-3 complete

UI/SharedComponents/ToggleHeaderView.swift

@@ -0,0 +1,20 @@
+import SwiftUI
+
+struct ToggleHeaderView: View {
+    let title: String
+    let description: String
+    @Binding var isEnabled: Bool
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 8) {
+            Toggle(title, isOn: $isEnabled)
+                .font(.headline)
+
+            Text(description)
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+        }
+        .padding()
+        .background(Color(.systemBackground))
+    }
+}