ios_app/
├── Features/              # Feature modules
│   ├── auth/             # Authentication flow
│   ├── profileCreation/  # Onboarding
│   ├── swiping/          # Card interface
│   ├── messages/         # Chat system
│   └── scholarships/     # Financial aid
├── Shared/               # Shared components
├── Services/             # API & data services
└── Utils/                # Utilities

// Model
struct School: Identifiable {
    let id: String
    let name: String
    let matchScore: Double
}

// ViewModel
@MainActor
class SwipingViewModel: ObservableObject {
    @Published var schools: [School] = []
    @Published var isLoading = false
    
    func loadSchools() async {
        isLoading = true
        schools = await api.fetchRecommendations()
        isLoading = false
    }
}

// View
struct SwipingView: View {
    @StateObject private var viewModel = SwipingViewModel()
    
    var body: some View {
        // UI implementation
    }
}

// Global student data
class GlobalStudentDataState: ObservableObject {
    static let shared = GlobalStudentDataState()
    @Published var studentInfo: StudentInfo?
    @Published var hasCompletedOnboarding: Bool
}

// Feed state management (v1.5+)
class FeedStateManager: ObservableObject {
    static let shared = FeedStateManager()
    @Published var likedSchoolIds: [String] = []
    @Published var dislikedSchoolIds: [String] = []
    
    func resetCompletely() {
        // Clear all persisted data on logout
        likedSchoolIds = []
        dislikedSchoolIds = []
        clearAllPersistedData()
    }
}

// App state manager
class AppStateManager {
    func reset() {
        // Clear feed state to prevent cross-account contamination
        FeedStateManager.shared.resetCompletely()
    }
}

struct CollegeDetailView: View {
    @State private var isExpanded = false
    @State private var selectedTab = 0
    
    var body: some View {
        // View implementation
    }
}

NavigationStack {
    MessageListView()
        .navigationDestination(for: Conversation.self) { conversation in
            ChatDetailView(conversation: conversation)
        }
}

class MatchingAPIClient {
    static let shared = MatchingAPIClient()
    
    func fetchRecommendations(for studentId: String) async throws -> [School] {
        let response = try await supabase
            .rpc("get_recommendations", params: ["student_id": studentId])
            .execute()
        
        return try decoder.decode([School].self, from: response.data)
    }
}

enum APIError: LocalizedError {
    case networkError
    case decodingError
    case unauthorized
    
    var errorDescription: String? {
        switch self {
        case .networkError:
            return "Network connection error"
        case .decodingError:
            return "Data format error"
        case .unauthorized:
            return "Please log in again"
        }
    }
}

class StudentProfileTests: XCTestCase {
    func testProfileValidation() {
        let profile = StudentProfile(name: "", email: "[email protected]")
        XCTAssertFalse(profile.isValid)
    }
}

class OnboardingUITests: XCTestCase {
    func testCompleteOnboarding() {
        let app = XCUIApplication()
        app.launch()
        
        // Test onboarding flow
        app.buttons["Get Started"].tap()
        // ... more interactions
    }
}