Update carousels, card hover, and IranBay branding.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/auth/handoff/page.tsx

@@ -0,0 +1,31 @@
+"use client";
+
+/**
+ * Fallback UI if the inline boot script did not redirect
+ * (e.g. missing hash). Prefer the layout script for session install.
+ */
+export default function AuthHandoffPage() {
+  return (
+    <div
+      style={{
+        minHeight: "100vh",
+        display: "grid",
+        placeItems: "center",
+        background: "#f6f6f6",
+        fontSize: 12,
+        letterSpacing: "0.2em",
+        textTransform: "uppercase",
+        color: "#8e8e8e",
+        padding: 24,
+        textAlign: "center",
+        lineHeight: 1.6,
+      }}
+    >
+      Opening business dashboard…
+      <br />
+      <span style={{ letterSpacing: "0.06em", textTransform: "none", marginTop: 12 }}>
+        If this page stays here, go back and click Manage business again.
+      </span>
+    </div>
+  );
+}