feat: add FadeIn and TypingCursor utility components

apps/landing/src/components/fade-in.tsx

@@ -0,0 +1,26 @@
+"use client";
+
+import { motion } from "framer-motion";
+import type { ReactNode } from "react";
+
+export function FadeIn({
+  children,
+  className,
+  delay = 0,
+}: {
+  children: ReactNode;
+  className?: string;
+  delay?: number;
+}) {
+  return (
+    <motion.div
+      initial={{ opacity: 0, y: 20 }}
+      whileInView={{ opacity: 1, y: 0 }}
+      viewport={{ once: true, margin: "-100px" }}
+      transition={{ duration: 0.5, delay, ease: "easeOut" }}
+      className={className}
+    >
+      {children}
+    </motion.div>
+  );
+}

apps/landing/src/components/typing-cursor.tsx

@@ -0,0 +1,50 @@
+"use client";
+
+import { AnimatePresence, motion } from "framer-motion";
+import { useCallback, useEffect, useState } from "react";
+
+const phrases = [
+  "100% local processing.",
+  "Zero data leaves your network.",
+  "50+ image tools.",
+  "14 AI models. Your hardware.",
+  "Air-gapped ready.",
+  "Enterprise-grade. Free forever.",
+  "One Docker container.",
+  "Open source. Always.",
+];
+
+export function TypingCursor() {
+  const [index, setIndex] = useState(0);
+
+  const advance = useCallback(() => {
+    setIndex((i) => (i + 1) % phrases.length);
+  }, []);
+
+  useEffect(() => {
+    const timer = setInterval(advance, 3000);
+    return () => clearInterval(timer);
+  }, [advance]);
+
+  return (
+    <span className="inline-flex items-center">
+      <AnimatePresence mode="wait">
+        <motion.span
+          key={phrases[index]}
+          initial={{ opacity: 0, y: 10 }}
+          animate={{ opacity: 1, y: 0 }}
+          exit={{ opacity: 0, y: -10 }}
+          transition={{ duration: 0.3 }}
+          className="text-accent"
+        >
+          {phrases[index]}
+        </motion.span>
+      </AnimatePresence>
+      <motion.span
+        animate={{ opacity: [1, 0] }}
+        transition={{ duration: 0.8, repeat: Infinity, repeatType: "reverse" }}
+        className="ml-0.5 inline-block w-[3px] h-[1em] bg-accent align-middle"
+      />
+    </span>
+  );
+}