diff --git a/apps/web/src/lib/api.ts b/apps/web/src/lib/api.ts
index 2d4731b..d9c4314 100644
--- a/apps/web/src/lib/api.ts
+++ b/apps/web/src/lib/api.ts
@@ -1,14 +1,8 @@
 /**
  * API client utilities for the web app.
- *
- * BUG: imports `useThrottle` from @e2e/utils, but that hook was renamed to
- * `useDebounce`. This causes a TypeScript error and a runtime crash.
- *
- * Fix: change the import to `useDebounce`.
  */
 
-// BUG: useThrottle no longer exists — was renamed to useDebounce
-import { useThrottle } from "@e2e/utils"
+import { useDebounce } from "@e2e/utils"
 import { formatDate, formatAUD } from "@e2e/utils"
 
 export const BASE_URL = process.env.API_URL ?? "http://localhost:3000"
@@ -28,5 +22,5 @@ export async function fetchPosts() {
 // Re-export formatting utilities used throughout the app
 export { formatDate, formatAUD }
 
-// Re-export the debounce hook (currently broken import)
-export { useThrottle as useSearchDebounce }
+// Re-export the debounce hook under the app-facing name
+export { useDebounce as useSearchDebounce }
diff --git a/packages/ui/src/components/Button/Button.tsx b/packages/ui/src/components/Button/Button.tsx
index af65c97..def3d39 100644
--- a/packages/ui/src/components/Button/Button.tsx
+++ b/packages/ui/src/components/Button/Button.tsx
@@ -17,14 +17,14 @@ type Props = {
 /**
  * Button component.
  *
- * BUG: When `iconOnly` is true, the button renders without visible text.
- * An `aria-label` is required for screen reader accessibility (WCAG 2.1 SC 4.1.2),
- * but the component does not enforce or warn about its absence.
- *
- * The test in Button.test.tsx checks that an icon-only button has an accessible name.
- * Fix: throw/warn in development when `iconOnly && !aria-label`, or always render
- * the aria-label attribute when iconOnly is true.
+ * Icon-only buttons have no visible text, so they must expose an accessible
+ * name via `aria-label` (WCAG 2.2 SC 4.1.2 Name, Role, Value). When `iconOnly`
+ * is set, an `aria-label` is always applied: the supplied label if present,
+ * otherwise a fallback derived from string children, with a development-time
+ * warning so the missing label is caught before release.
  */
+const ICON_ONLY_FALLBACK_LABEL = "Button"
+
 export function Button({
   children,
   icon,
@@ -34,13 +34,25 @@ export function Button({
   onClick,
   "aria-label": ariaLabel,
 }: Props) {
+  let accessibleLabel = ariaLabel
+
+  if (iconOnly && !accessibleLabel) {
+    accessibleLabel = typeof children === "string" && children.trim() !== "" ? children : ICON_ONLY_FALLBACK_LABEL
+
+    if (process.env.NODE_ENV !== "production") {
+      console.warn(
+        "Button: an icon-only button requires an `aria-label` to provide an accessible name (WCAG 2.2 SC 4.1.2). " +
+          `Falling back to "${accessibleLabel}".`,
+      )
+    }
+  }
+
   return (
     <button
       className={`btn btn-${variant}`}
       disabled={disabled}
       onClick={onClick}
-      // BUG: aria-label is not applied when iconOnly is true and no ariaLabel is passed
-      // The component should enforce aria-label for icon-only buttons
+      aria-label={accessibleLabel}
     >
       {icon && <span className="btn-icon">{icon}</span>}
       {!iconOnly && children}
diff --git a/packages/utils/src/format/date.ts b/packages/utils/src/format/date.ts
index 609e46c..678d65f 100644
--- a/packages/utils/src/format/date.ts
+++ b/packages/utils/src/format/date.ts
@@ -1,21 +1,21 @@
 /**
  * Date formatting utilities.
  *
- * BUG: formatDate passes `'en-AU'` as the locale but then uses a US-style
- * format string option (`month: 'numeric'` before `day: 'numeric'`), which
- * produces MM/DD/YYYY output instead of DD/MM/YYYY for Australian dates.
- *
- * Fix: use `dateStyle: 'short'` with `'en-AU'` locale, which correctly
- * produces DD/MM/YYYY, or explicitly set `day: 'numeric', month: 'numeric', year: 'numeric'`
- * and rely on the locale to order them correctly.
+ * Australian date convention is day-first (D/MM/YYYY), with no leading zero
+ * padding on the day — e.g. 1/03/2024, 15/06/2024. The `en-AU` locale supplies
+ * the field ordering; the day part is un-padded explicitly because ICU pads the
+ * day whenever the month is requested as two digits.
  */
 export function formatDate(date: Date): string {
-  // BUG: explicit field order overrides locale ordering — produces M/D/YYYY not D/M/YYYY
-  return new Intl.DateTimeFormat("en-AU", {
-    month: "numeric",
+  const parts = new Intl.DateTimeFormat("en-AU", {
     day: "numeric",
+    month: "2-digit",
     year: "numeric",
-  }).format(date)
+  }).formatToParts(date)
+
+  return parts
+    .map((part) => (part.type === "day" ? String(Number(part.value)) : part.value))
+    .join("")
 }
 
 export function formatDateTime(date: Date): string {