fix: exponential backoff retry, masked amounts, session dismiss banner

src/components/ConfidentialPaymentFlow.tsx

@@ -62,6 +62,7 @@ export default function ConfidentialPaymentFlow({
   const [step, setStep] = useState<Step>("commit");
   const [txHash, setTxHash] = useState<string | null>(null);
   const [error, setError] = useState<string | null>(null);
+  const [amountsVisible, setAmountsVisible] = useState(false);
 
   useEffect(() => {
     if (!publicKey) return;
@@ -178,15 +179,24 @@ export default function ConfidentialPaymentFlow({
       )}
 
       <div>
-        <label
-          htmlFor="confidential-amount"
-          className="block text-sm font-medium text-gray-300 mb-1"
-        >
-          Amount (USDC)
-        </label>
+        <div className="flex items-center justify-between mb-1">
+          <label
+            htmlFor="confidential-amount"
+            className="block text-sm font-medium text-gray-300"
+          >
+            Amount (USDC)
+          </label>
+          <button
+            type="button"
+            onClick={() => setAmountsVisible((v) => !v)}
+            className="text-xs font-medium text-indigo-400 hover:text-indigo-300"
+          >
+            {amountsVisible ? "Hide amounts" : "Show amounts"}
+          </button>
+        </div>
         <input
           id="confidential-amount"
-          type="number"
+          type={amountsVisible ? "number" : "password"}
           step="0.0000001"
           min="0.0000001"
           placeholder="0.00"

src/components/UpgradeBanner.tsx

@@ -3,7 +3,7 @@
 import { useEffect, useState } from "react";
 import { splitClient } from "@/lib/stellar";
 
-const STORAGE_KEY_PREFIX = "stellarsplit-upgrade-dismissed-";
+const DISMISSED_KEY = "split_upgrade_dismissed";
 
 interface UpgradeInfo {
   version: string;
@@ -13,19 +13,17 @@ interface UpgradeInfo {
 export default function UpgradeBanner() {
   const [upgrade, setUpgrade] = useState<UpgradeInfo | null>(null);
   const [mounted, setMounted] = useState(false);
+  const [dismissed, setDismissed] = useState(false);
 
   useEffect(() => {
     setMounted(true);
+    setDismissed(sessionStorage.getItem(DISMISSED_KEY) === "true");
 
     let cleanup: (() => void) | undefined;
 
     try {
       cleanup = (splitClient as any).watchContractUpgrade((info: UpgradeInfo) => {
-        const key = `${STORAGE_KEY_PREFIX}${info.version}`;
-        const dismissed = localStorage.getItem(key) === "true";
-        if (!dismissed) {
-          setUpgrade(info);
-        }
+        setUpgrade(info);
       });
     } catch {
       // watchContractUpgrade not available in this environment — silently skip
@@ -37,12 +35,11 @@ export default function UpgradeBanner() {
   }, []);
 
   const dismiss = () => {
-    if (!upgrade) return;
-    localStorage.setItem(`${STORAGE_KEY_PREFIX}${upgrade.version}`, "true");
-    setUpgrade(null);
+    sessionStorage.setItem(DISMISSED_KEY, "true");
+    setDismissed(true);
   };
 
-  if (!mounted || !upgrade) return null;
+  if (!mounted || !upgrade || dismissed) return null;
 
   const changelogHref = upgrade.changelogUrl ?? "/changelog";
 

src/hooks/useTransactionWithRetry.ts

@@ -1,4 +1,4 @@
-import { useCallback, useRef } from 'react';
+import { useCallback, useRef, useState } from 'react';
 import { useToast } from '@/contexts/ToastContext';
 
 interface RetryOptions {
@@ -7,15 +7,18 @@ interface RetryOptions {
   retryableStatusCodes?: number[];
 }
 
+const MAX_DELAY_MS = 30000;
+
 const DEFAULT_OPTIONS = {
-  maxRetries: 3,
-  initialDelayMs: 3000,
+  maxRetries: 5,
+  initialDelayMs: 1000,
   retryableStatusCodes: [429],
 };
 
 export function useTransactionWithRetry(options?: RetryOptions) {
   const toast = useToast();
   const abortControllers = useRef<Map<string, AbortController>>(new Map());
+  const [attemptCount, setAttemptCount] = useState(0);
   const opts = { ...DEFAULT_OPTIONS, ...options };
 
   const getStatusCode = (error: any): number | undefined => {
@@ -48,6 +51,7 @@ export function useTransactionWithRetry(options?: RetryOptions) {
       let toastId: string | null = null;
 
       for (let attempt = 1; attempt <= opts.maxRetries; attempt++) {
+        setAttemptCount(attempt);
         try {
           // Check if user cancelled
           if (abortControllers.current.get(operationId)?.signal.aborted) {
@@ -65,7 +69,10 @@ export function useTransactionWithRetry(options?: RetryOptions) {
             attempt < opts.maxRetries;
 
           if (isRetryable) {
-            const delayMs = opts.initialDelayMs * Math.pow(2, attempt - 1);
+            const delayMs = Math.min(
+              opts.initialDelayMs * Math.pow(2, attempt - 1),
+              MAX_DELAY_MS
+            );
             const countdownSeconds = Math.ceil(delayMs / 1000);
 
             // Show countdown toast
@@ -114,5 +121,5 @@ export function useTransactionWithRetry(options?: RetryOptions) {
     }
   }, []);
 
-  return { executeWithRetry, cancel };
+  return { executeWithRetry, cancel, attemptCount };
 }