fix(currency-creation): pop the creation flow when a launch finishes

Flipcash/Core/Screens/Main/Currency Creation/CurrencyCreationWizardScreen.swift

@@ -261,12 +261,7 @@ struct CurrencyCreationWizardScreen: View {
                     paymentMint: context.paymentMint
                 )
                 .environment(\.dismissParentContainer, {
-                    // Sheet dismiss unmounts the wizard, taking the
-                    // fullScreenCover with it as a single animation.
-                    // Nilling the cover binding here would stage a separate
-                    // cover-dismiss before the sheet animation; the @State
-                    // is freed automatically when the wizard unmounts.
-                    router.dismissSheet()
+                    Self.dismissCreationFlow(router: router)
                 })
             }
         }
@@ -282,6 +277,17 @@ struct CurrencyCreationWizardScreen: View {
         }
     }
 
+    /// Unwinds the whole creation flow once the launch cover is done with it —
+    /// both the finished handoff and the failure dismissal come through here.
+    ///
+    /// The flow is pushed onto the Wallet tab's stack, so it comes off by
+    /// popping that stack to its root. Naming the stack rather than using
+    /// `popToRoot()`'s topmost lookup keeps this working while the cover is up,
+    /// since the tab host clears `activeTabStack` when it disappears.
+    static func dismissCreationFlow(router: AppRouter) {
+        router.popToRoot(on: AppRouter.Destination.currencyCreationWizard.owningStack)
+    }
+
     // MARK: - Navigation
 
     private func advance() {

FlipcashTests/Navigation/CurrencyCreationFlowDismissalTests.swift

@@ -0,0 +1,43 @@
+//
+//  CurrencyCreationFlowDismissalTests.swift
+//  FlipcashTests
+//
+
+import SwiftUI
+import Testing
+import FlipcashCore
+@testable import Flipcash
+
+@MainActor
+@Suite("Currency Creation Flow Dismissal")
+struct CurrencyCreationFlowDismissalTests {
+
+    /// Pushes the flow the way the Wallet tile does: summary, then wizard.
+    private func routerInCreationFlow() -> AppRouter {
+        let router = AppRouter()
+        router.activeTabStack = .balance
+        router.push(.currencyCreationSummary)
+        router.push(.currencyCreationWizard)
+        return router
+    }
+
+    @Test("Finishing the launch cover pops the creation flow off the Wallet stack")
+    func dismissCreationFlow_popsHostStack() {
+        let router = routerInCreationFlow()
+
+        CurrencyCreationWizardScreen.dismissCreationFlow(router: router)
+
+        #expect(router[.balance].isEmpty, "the wizard must not stay mounted under the dismissed cover")
+    }
+
+    @Test("Unwinds even though the cover hid the tab host and cleared the active stack")
+    func dismissCreationFlow_withoutActiveTabStack_popsHostStack() {
+        let router = routerInCreationFlow()
+        // `HomeTabView.onDisappear` clears this while the fullScreenCover is up.
+        router.activeTabStack = nil
+
+        CurrencyCreationWizardScreen.dismissCreationFlow(router: router)
+
+        #expect(router[.balance].isEmpty, "the unwind must not depend on the tab host still being mounted")
+    }
+}