diff --git a/apps/web/src/lib/api.ts b/apps/web/src/lib/api.ts
index 2d4731b..b0121b5 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
+export { useDebounce as useSearchDebounce }
diff --git a/bun-env.d.ts b/bun-env.d.ts
new file mode 100644
index 0000000..22f6a66
--- /dev/null
+++ b/bun-env.d.ts
@@ -0,0 +1 @@
+/// <reference types="bun-types" />
diff --git a/packages/ui/src/components/Button/Button.tsx b/packages/ui/src/components/Button/Button.tsx
index af65c97..75155de 100644
--- a/packages/ui/src/components/Button/Button.tsx
+++ b/packages/ui/src/components/Button/Button.tsx
@@ -17,13 +17,10 @@ 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 render no visible text, so they must expose an accessible
+ * name (WCAG 2.2 SC 4.1.2). An explicit `aria-label` is used when provided;
+ * otherwise string children are promoted to the label, falling back to a
+ * generic "Button" with a development-mode warning.
  */
 export function Button({
   children,
@@ -34,16 +31,24 @@ export function Button({
   onClick,
   "aria-label": ariaLabel,
 }: Props) {
+  const resolvedAriaLabel =
+    ariaLabel ?? (iconOnly ? (typeof children === "string" ? children : "Button") : undefined)
+
+  if (process.env.NODE_ENV !== "production" && iconOnly && !ariaLabel) {
+    console.warn(
+      "Button: `iconOnly` requires an explicit `aria-label` for screen reader users (WCAG 2.2 SC 4.1.2). Falling back to a generic label.",
+    )
+  }
+
   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={resolvedAriaLabel}
     >
       {icon && <span className="btn-icon">{icon}</span>}
       {!iconOnly && children}
     </button>
   )
-}
+}
\ No newline at end of file
diff --git a/packages/utils/src/format/date.ts b/packages/utils/src/format/date.ts
index 609e46c..24ab77b 100644
--- a/packages/utils/src/format/date.ts
+++ b/packages/utils/src/format/date.ts
@@ -1,21 +1,19 @@
 /**
  * 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.
+ * `formatDate` produces Australian day-first dates (D/MM/YYYY) with an
+ * unpadded day. The `en-AU` CLDR data coerces `day: 'numeric'` to 2-digit,
+ * so the day part is stripped of its leading zero via `formatToParts`.
  */
 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",
     day: "numeric",
+    month: "2-digit",
     year: "numeric",
-  }).format(date)
+  })
+    .formatToParts(date)
+    .map((p) => (p.type === "day" ? String(Number(p.value)) : p.value))
+    .join("")
 }
 
 export function formatDateTime(date: Date): string {
diff --git a/tsconfig.json b/tsconfig.json
index 167f910..d25b245 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -11,5 +11,10 @@
       "@e2e/utils": ["./packages/utils/src/index.ts"]
     }
   },
-  "include": ["packages/*/src/**/*", "packages/*/test/**/*", "apps/*/src/**/*"]
+  "include": [
+    "bun-env.d.ts",
+    "packages/*/src/**/*",
+    "packages/*/test/**/*",
+    "apps/*/src/**/*"
+  ]
 }