FRE-4665: Implement Phase 3 AI training plans and premium features

- Models: TrainingPlan, Race, FamilyPlan, BeginnerMode, CommunityEvent
- Services: 5 service layers with protocol-based architecture
- ViewModels: 5 view models with @MainActor ObservableObject pattern
- Views: 10 SwiftUI views for all Phase 3 features
- Updated README with full Phase 3 documentation

Co-Authored-By: Paperclip <noreply@paperclip.ing>

Lendair/Views/FamilyMemberView.swift

@@ -0,0 +1,125 @@
+import SwiftUI
+
+struct FamilyMemberView: View {
+    let member: FamilyMember
+    @State private var weeklyData: [(day: String, distance: Double)] = []
+
+    var body: some View {
+        ScrollView {
+            VStack(spacing: 16) {
+                memberHeader
+                statsSection
+                weeklyActivitySection
+            }
+            .padding(.horizontal)
+            .padding(.bottom, 32)
+        }
+        .navigationTitle(member.name)
+        .navigationBarTitleDisplayMode(.inline)
+    }
+
+    private var memberHeader: some View {
+        VStack(spacing: 16) {
+            ZStack {
+                Circle()
+                    .fill(member.isPrimary ? Color.blue.opacity(0.2) : Color.green.opacity(0.2))
+                    .frame(width: 80, height: 80)
+                Image(systemName: member.role.icon)
+                    .font(.system(size: 36))
+                    .foregroundColor(member.isPrimary ? .blue : .green)
+            }
+
+            VStack(spacing: 4) {
+                Text(member.name)
+                    .font(.title3)
+                    .fontWeight(.bold)
+                Text(member.role.displayName)
+                    .font(.caption)
+                    .foregroundColor(.secondary)
+            }
+        }
+        .padding()
+        .frame(maxWidth: .infinity)
+        .background(Color.secondary.opacity(0.1))
+        .cornerRadius(12)
+    }
+
+    private var statsSection: some View {
+        VStack(alignment: .leading, spacing: 12) {
+            Text("Statistics")
+                .font(.headline)
+
+            HStack(spacing: 16) {
+                statCard(value: "\(Int(member.totalDistanceKm))", label: "Total km", icon: "figure.run")
+                statCard(value: "\(member.totalWorkouts)", label: "Workouts", icon: "checkmark.circle")
+                statCard(value: "\(Int(member.weeklyDistanceKm))", label: "This Week", icon: "chart.bar.fill")
+            }
+        }
+    }
+
+    private func statCard(value: String, label: String, icon: String) -> some View {
+        VStack(spacing: 8) {
+            Image(systemName: icon)
+                .font(.system(size: 20))
+                .foregroundColor(.blue)
+            Text(value)
+                .font(.title3)
+                .fontWeight(.bold)
+            Text(label)
+                .font(.caption)
+                .foregroundColor(.secondary)
+        }
+        .frame(maxWidth: .infinity)
+        .padding(.vertical, 12)
+        .background(Color.secondary.opacity(0.08))
+        .cornerRadius(10)
+    }
+
+    private var weeklyActivitySection: some View {
+        VStack(alignment: .leading, spacing: 8) {
+            Text("Weekly Activity")
+                .font(.headline)
+
+            VStack(spacing: 8) {
+                ForEach(DayOfWeek.allCases, id: \.self) { day in
+                    HStack {
+                        Text(day.displayName)
+                            .font(.subheadline)
+                            .frame(width: 36)
+                        GeometryReader { geo in
+                            RoundedRectangle(cornerRadius: 3)
+                                .fill(Color.blue.opacity(0.6))
+                                .frame(width: min(geo.size.width, 200), height: 24)
+                        }
+                        .frame(height: 24)
+                        Text("\(Int(member.weeklyDistanceKm / 7)) km")
+                            .font(.caption)
+                            .foregroundColor(.secondary)
+                    }
+                }
+            }
+        }
+    }
+}
+
+#Preview {
+    NavigationView {
+        FamilyMemberView(member: sampleMember)
+    }
+}
+
+private var sampleMember: FamilyMember {
+    FamilyMember(
+        id: "1",
+        name: "John Doe",
+        email: "john@example.com",
+        role: .owner,
+        joinedAt: Date().addingTimeInterval(-30 * 24 * 3600),
+        avatarUrl: nil,
+        isPrimary: true,
+        totalDistanceKm: 245.5,
+        totalWorkouts: 42,
+        weeklyDistanceKm: 32.0,
+        weeklyWorkouts: 5
+    )
+}