feat: letta code

src/cli/components/ShimmerText.tsx

@@ -0,0 +1,34 @@
+import chalk from "chalk";
+import { Text } from "ink";
+import type React from "react";
+import { colors } from "./colors.js";
+
+interface ShimmerTextProps {
+  color?: string;
+  message: string;
+  shimmerOffset: number;
+}
+
+export const ShimmerText: React.FC<ShimmerTextProps> = ({
+  color = colors.status.processing,
+  message,
+  shimmerOffset,
+}) => {
+  const fullText = `${message}…`;
+
+  // Create the shimmer effect - simple 3-char highlight
+  const shimmerText = fullText
+    .split("")
+    .map((char, i) => {
+      // Check if this character is within the 3-char shimmer window
+      const isInShimmer = i >= shimmerOffset && i < shimmerOffset + 3;
+
+      if (isInShimmer) {
+        return chalk.hex(colors.status.processingShimmer)(char);
+      }
+      return chalk.hex(color)(char);
+    })
+    .join("");
+
+  return <Text>{shimmerText}</Text>;
+};