fix(swift-example-app): unhide Create Identity submit button and auto-dismiss sheet on success

packages/swift-sdk/SwiftExampleApp/SwiftExampleApp/Views/CreateIdentityView.swift

@@ -146,10 +146,6 @@ struct CreateIdentityView: View {
     /// User-facing error surfaced via the `.alert` modifier.
     @State private var submitError: SubmitError? = nil
 
-    /// Success payload. Populated after the identity is persisted;
-    /// the submit section swaps to a success banner and auto-dismiss.
-    @State private var createdIdentityId: Data? = nil
-
     /// Active registration controller for the Core-funded path.
     /// Stored only so `submitCoreFunded` has a local reference
     /// after spawning it; the canonical lifetime owner is
@@ -892,8 +888,8 @@ struct CreateIdentityView: View {
                         identityIndex: identityIndex
                     )
                     try modelContext.save()
-                    self.createdIdentityId = created.identityId
                     self.isCreating = false
+                    dismiss()
                 }
             } catch {
                 await MainActor.run {
@@ -990,7 +986,7 @@ struct CreateIdentityView: View {
     }
 
     /// Bridge a controller's phase transitions to this view's
-    /// `createdIdentityId` / `submitError` / `isCreating` state.
+    /// `submitError` / `isCreating` state.
     /// The observer task auto-cancels when this view deallocates
     /// (Swift task lifecycle on the captured `self`), but the
     /// controller itself outlives the view.
@@ -1014,7 +1010,6 @@ struct CreateIdentityView: View {
                             identityIndex: identityIndex
                         )
                         try modelContext.save()
-                        self.createdIdentityId = identityId
                     } catch {
                         self.submitError = .init(
                             message: error.localizedDescription
@@ -1273,19 +1268,46 @@ struct CreateIdentityView: View {
         case 14:
             let balance = accountBalance(account)
             if balance == 0 { return "" }
-            let dash = Double(balance) / Double(Self.creditsPerDash)
-            return String(format: "%g", dash)
+            return Self.amountString(
+                smallestUnits: balance,
+                decimalsPerWhole: Self.creditsPerDash
+            )
         case 0, 1:
             let available = coreAccountBalanceDuffs(account)
             let defaultDuffs = min(available, Self.defaultCoreFundingDuffs)
             if defaultDuffs == 0 { return "" }
-            let dash = Double(defaultDuffs) / Double(Self.duffsPerDash)
-            return String(format: "%g", dash)
+            return Self.amountString(
+                smallestUnits: defaultDuffs,
+                decimalsPerWhole: Self.duffsPerDash
+            )
         default:
             return ""
         }
     }
 
+    private static func amountString(
+        smallestUnits: UInt64,
+        decimalsPerWhole: UInt64
+    ) -> String {
+        let whole = smallestUnits / decimalsPerWhole
+        let fractional = smallestUnits % decimalsPerWhole
+        if fractional == 0 {
+            return "\(whole)"
+        }
+        let decimalPlaces = String(decimalsPerWhole).count - 1
+        var fractionalStr = String(fractional)
+        if fractionalStr.count < decimalPlaces {
+            fractionalStr = String(
+                repeating: "0",
+                count: decimalPlaces - fractionalStr.count
+            ) + fractionalStr
+        }
+        while fractionalStr.last == "0" {
+            fractionalStr.removeLast()
+        }
+        return fractionalStr.isEmpty ? "\(whole)" : "\(whole).\(fractionalStr)"
+    }
+
     /// Parse the amount text back into credits. Returns `nil` on
     /// invalid / negative / overflow input.
     private var parsedAmountCredits: UInt64? {