Shengming Liang AgentWings

## charts.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>LLM Usage Analytics</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
    <link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&family=Inter:wght@400;700;900&display=swap" rel="stylesheet">
    <style>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>LLM Usage Analytics</title>
	<script src="https://cdn.tailwindcss.com"></script>
	<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
	<link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&family=Inter:wght@400;700;900&display=swap" rel="stylesheet">
	<style>