feat: add proxy check button

src/lib/flag-utils.ts

@@ -0,0 +1,34 @@
+/**
+ * Get flag icon CSS class for a country code (ISO 3166-1 alpha-2)
+ */
+export function getFlagIconClass(countryCode: string): string {
+  if (!countryCode || countryCode.length !== 2) {
+    return "";
+  }
+  return `fi fi-${countryCode.toLowerCase()}`;
+}
+
+/**
+ * Format relative time (e.g., "2 minutes ago", "1 hour ago")
+ */
+export function formatRelativeTime(timestamp: number): string {
+  const now = Math.floor(Date.now() / 1000);
+  const secondsAgo = now - timestamp;
+
+  if (secondsAgo < 60) {
+    return "just now";
+  }
+
+  const minutesAgo = Math.floor(secondsAgo / 60);
+  if (minutesAgo < 60) {
+    return `${minutesAgo} minute${minutesAgo !== 1 ? "s" : ""} ago`;
+  }
+
+  const hoursAgo = Math.floor(minutesAgo / 60);
+  if (hoursAgo < 24) {
+    return `${hoursAgo} hour${hoursAgo !== 1 ? "s" : ""} ago`;
+  }
+
+  const daysAgo = Math.floor(hoursAgo / 24);
+  return `${daysAgo} day${daysAgo !== 1 ? "s" : ""} ago`;
+}