feat(ios): fix Pass A compile blockers from code audit

iphone/Closer/CloserApp.swift

@@ -52,6 +52,17 @@ final class AppState: ObservableObject {
     @Published var currentCouple: Couple?
     @Published var isPremium = false
     
+    /// Derives the partner from the current couple + current user.
+    /// TODO(iOS): Full implementation needs a Firestore lookup of the partner user document.
+    /// For MVP, returns nil.
+    var currentPartner: User? {
+        guard let couple = currentCouple, let me = currentUser else { return nil }
+        let partnerId = couple.userIds.first { $0 != me.id }
+        _ = partnerId
+        // TODO(iOS): Fetch partner User from Firestore using partnerId.
+        return nil
+    }
+    
     private let authService = AuthService.shared
     private let firestore = FirestoreService.shared
     private var authTask: Task<Void, Never>?

iphone/Closer/Core/Billing/BillingService.swift

@@ -30,6 +30,17 @@ final class BillingService: @unchecked Sendable {
         try await FirestoreService.shared.syncEntitlementCallable()
     }
     
+    /// Purchase the first package from the current offering
+    func purchase() async throws -> CustomerInfo {
+        let offerings = try await getOfferings()
+        guard let package = offerings.current?.availablePackages.first else {
+            throw BillingError.noAvailablePackage
+        }
+        let result = try await Purchases.shared.purchase(package: package)
+        try await FirestoreService.shared.syncEntitlementCallable()
+        return result.customerInfo
+    }
+    
     /// Restore previous purchases
     func restorePurchases() async throws -> CustomerInfo {
         try await Purchases.shared.restorePurchases()
@@ -58,14 +69,14 @@ final class BillingService: @unchecked Sendable {
     }
 }
 
-// MARK: - Entitlement Checker
+// MARK: - Entitlement Checking
 
-protocol EntitlementChecker: Actor {
+protocol EntitlementChecking: Actor {
     var isPremium: AsyncStream<Bool> { get }
     func hasPremium() async -> Bool
 }
 
-final actor DefaultEntitlementChecker: EntitlementChecker {
+final actor DefaultEntitlementChecker: EntitlementChecking {
     nonisolated let isPremium: AsyncStream<Bool>
     private let billing: BillingService
     private let firestore: FirestoreService
@@ -91,3 +102,16 @@ final actor DefaultEntitlementChecker: EntitlementChecker {
         await billing.checkPremiumStatus()
     }
 }
+
+// MARK: - Billing Errors
+
+enum BillingError: LocalizedError {
+    case noAvailablePackage
+    
+    var errorDescription: String? {
+        switch self {
+        case .noAvailablePackage:
+            return "No purchase package is currently available."
+        }
+    }
+}

iphone/Closer/Models/FirestoreModels.swift

@@ -1,5 +1,7 @@
 import Foundation
 
+import FirebaseFirestoreSwift
+
 struct User: Codable, Identifiable, Sendable {
     let id: String
     var email: String
@@ -130,19 +132,3 @@ struct DailyAnswer: Codable, Identifiable, Sendable {
     var submittedAt: Date
 }
 
-/// Timestamp wrapper for Firestore decoding
-@propertyWrapper
-struct DocumentID: Codable, Sendable {
-    var wrappedValue: String?
-    
-    init(wrappedValue: String?) {
-        self.wrappedValue = wrappedValue
-    }
-    
-    enum CodingKeys: CodingKey {}
-    
-    func encode(to encoder: Encoder) throws {}
-    init(from decoder: Decoder) throws {
-        wrappedValue = nil
-    }
-}

iphone/Closer/Services/FirestoreService.swift

@@ -173,6 +173,31 @@ extension FirestoreService {
     func sendGentleReminderCallable() async throws {
         try await functions.httpsCallable("sendGentleReminderCallable").call()
     }
+    
+    func deleteUserCallable() async throws {
+        let result = try await functions.httpsCallable("deleteUserCallable").call()
+        guard let success = (result.data as? [String: Any])?["success"] as? Bool, success else {
+            throw FirestoreError.invalidResponse
+        }
+    }
+    
+    func updateUserCallable(displayName: String, bio: String?) async throws {
+        var data: [String: Any] = ["displayName": displayName]
+        if let bio = bio {
+            data["bio"] = bio
+        }
+        let result = try await functions.httpsCallable("updateUserCallable").call(data)
+        guard let success = (result.data as? [String: Any])?["success"] as? Bool, success else {
+            throw FirestoreError.invalidResponse
+        }
+    }
+    
+    func exportDataCallable() async throws {
+        let result = try await functions.httpsCallable("exportDataCallable").call()
+        guard let success = (result.data as? [String: Any])?["success"] as? Bool, success else {
+            throw FirestoreError.invalidResponse
+        }
+    }
 }
 
 // MARK: - Errors

iphone/Closer/Settings/SettingsViews.swift

@@ -795,24 +795,6 @@ struct PaywallView: View {
     }
 }
 
-// MARK: - Premium Badge
-
-struct PremiumBadge: View {
-    var body: some View {
-        HStack(spacing: 2) {
-            Image(systemName: "sparkle")
-                .font(.system(size: 8))
-            Text("Premium")
-                .font(.system(size: 9, weight: .bold))
-        }
-        .foregroundColor(.closerGold)
-        .padding(.horizontal, 6)
-        .padding(.vertical, 2)
-        .background(Color.closerGold.opacity(0.15))
-        .cornerRadius(CloserRadius.full)
-    }
-}
-
 // MARK: - Premium Feature Row
 
 struct PremiumFeatureRow: View {
@@ -889,27 +871,3 @@ struct FeatureBullet: View {
         .padding(.vertical, 4)
     }
 }
-
-// MARK: - Entitlement Checker
-
-protocol EntitlementChecking {
-    func hasPremium() async -> Bool
-}
-
-struct DefaultEntitlementChecker: EntitlementChecking {
-    func hasPremium() async -> Bool {
-        do {
-            let customerInfo = try await Purchases.shared.customerInfo()
-            return customerInfo.entitlements.active["closer_premium"] != nil
-        } catch {
-            return false
-        }
-    }
-}
-
-#if DEBUG
-struct MockEntitlementChecker: EntitlementChecking {
-    let isPremium: Bool
-    func hasPremium() async -> Bool { isPremium }
-}
-#endif

iphone/CloserTests/CloserTests.swift

@@ -0,0 +1,9 @@
+import XCTest
+@testable import Closer
+
+final class CloserTests: XCTestCase {
+    func testExample() throws {
+        // Placeholder — add unit tests here.
+        XCTAssertTrue(true)
+    }
+}

iphone/CloserUITests/CloserUITests.swift

@@ -0,0 +1,8 @@
+import XCTest
+
+final class CloserUITests: XCTestCase {
+    func testExample() throws {
+        // Placeholder — add UI tests here.
+        XCTAssertTrue(true)
+    }
+}

iphone/Package.swift

@@ -24,10 +24,12 @@ let package = Package(
             dependencies: [
                 .product(name: "FirebaseAuth", package: "firebase-ios-sdk"),
                 .product(name: "FirebaseFirestore", package: "firebase-ios-sdk"),
+                .product(name: "FirebaseFirestoreSwift", package: "firebase-ios-sdk"),
                 .product(name: "FirebaseFunctions", package: "firebase-ios-sdk"),
                 .product(name: "FirebaseMessaging", package: "firebase-ios-sdk"),
                 .product(name: "FirebaseStorage", package: "firebase-ios-sdk"),
                 .product(name: "RevenueCat", package: "purchases-ios"),
+                .product(name: "RevenueCatUI", package: "purchases-ios"),
                 .product(name: "GoogleSignIn", package: "GoogleSignIn-iOS"),
             ]
         ),

iphone/project.yml

@@ -23,13 +23,6 @@ targets:
         TARGETED_DEVICE_FAMILY: 1
         INFOPLIST_FILE: Closer/Info.plist
     dependencies:
-      - framework: FirebaseAuth
-      - framework: FirebaseFirestore
-      - framework: FirebaseFunctions
-      - framework: FirebaseMessaging
-      - framework: FirebaseStorage
-      - sdk: RevenueCat
-      - sdk: GoogleSignIn
     preBuildScripts:
       - name: "Run SwiftLint"
         script: |