feat: add site onboarding route

src/utils/cookies/siteVisitCookie.ts

@@ -0,0 +1,35 @@
+const COOKIE_NAME = "siteVisited";
+const EXPIRY_HOURS = 24;
+
+/**
+ * Check if the site has been visited today (within 24 hours)
+ */
+export function hasSiteBeenVisitedToday(): boolean {
+  const cookies = document.cookie.split(";");
+
+  for (const cookie of cookies) {
+    const [name, value] = cookie.trim().split("=");
+    if (name === COOKIE_NAME && value === "true") {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+/**
+ * Set the site visited cookie with 24-hour expiration
+ */
+export function setSiteVisited(): void {
+  const expiryDate = new Date();
+  expiryDate.setTime(expiryDate.getTime() + EXPIRY_HOURS * 60 * 60 * 1000);
+
+  document.cookie = `${COOKIE_NAME}=true; expires=${expiryDate.toUTCString()}; path=/; SameSite=Strict`;
+}
+
+/**
+ * Clear the site visited cookie (useful for debugging)
+ */
+export function clearSiteVisited(): void {
+  document.cookie = `${COOKIE_NAME}=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/;`;
+}