diff --git a/docs/superpowers/plans/2026-06-18-premium-driver-pwa.md b/docs/superpowers/plans/2026-06-18-premium-driver-pwa.md
index d19d6f1..d8cd47f 100644
--- a/docs/superpowers/plans/2026-06-18-premium-driver-pwa.md
+++ b/docs/superpowers/plans/2026-06-18-premium-driver-pwa.md
@@ -536,7 +536,8 @@ const MAX_DIGITS = 6;
 export function keypadReduce(current: string, key: string): string {
   if (key === "back") return current.slice(0, -1);
   if (!/^\d$/.test(key)) return current;
-  if (current === "" && key === "0") return "";       // no leading zero
+  if (current === "0") return key === "0" ? "0" : key;  // replace leading zero
+  if (current === "" && key === "0") return "";          // no leading zero from empty
   if (current.length >= MAX_DIGITS) return current;
   return current + key;
 }
diff --git a/driver-pwa/frontend/.gitignore b/driver-pwa/frontend/.gitignore
index b1640b5..225489c 100644
--- a/driver-pwa/frontend/.gitignore
+++ b/driver-pwa/frontend/.gitignore
@@ -2,3 +2,4 @@ node_modules
 dist
 .env
 .env.local
+*.tsbuildinfo