init: 初始化 AssetX 项目仓库

包含 webapp（Next.js 用户端）、webapp-back（Go 后端）、
antdesign（管理后台）、landingpage（营销落地页）、
数据库 SQL 和配置文件。

webapp/lib/api/fundmarket.ts

@@ -0,0 +1,243 @@
+// Fund Market API Client
+const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8080/api';
+
+export interface StatsData {
+  label: string;
+  value: string;
+  change: string;
+  isPositive: boolean;
+}
+
+export interface Product {
+  id: number;
+  name: string;
+  tokenSymbol: string;
+  decimals: number;
+  contractAddress: string;
+  chainId: number;
+  token_role: string;
+  category: string;
+  categoryColor: "blue" | "green" | "orange" | "purple" | "red";
+  iconUrl: string;
+  yieldAPY: string;
+  poolCap: string;
+  risk: string;
+  riskLevel: 1 | 2 | 3;
+  circulatingSupply: string;
+  poolCapacityPercent: number;
+}
+
+// Fetch all products
+// tokenList=true: include stablecoins (for token dropdowns)
+// tokenList=false (default): exclude stablecoins (Fund Market page)
+export async function fetchProducts(tokenList: boolean = false): Promise<Product[]> {
+  try {
+    const url = tokenList === true
+      ? `${API_BASE_URL}/fundmarket/products?token_list=1`
+      : `${API_BASE_URL}/fundmarket/products`;
+    const response = await fetch(url, {
+      cache: 'no-store',
+    });
+
+    if (!response.ok) {
+      throw new Error('Failed to fetch products');
+    }
+
+    const data = await response.json();
+    
+    if (!data.success) {
+      throw new Error(data.error || 'Failed to fetch products');
+    }
+
+    return data.data ?? [];
+  } catch (error: unknown) {
+    console.error('Error fetching products:', error);
+    return [];
+  }
+}
+
+// Fetch market stats
+export async function fetchStats(): Promise<StatsData[]> {
+  try {
+    const response = await fetch(`${API_BASE_URL}/fundmarket/stats`, {
+      cache: 'no-store',
+    });
+
+    if (!response.ok) {
+      throw new Error('Failed to fetch stats');
+    }
+
+    const data = await response.json();
+    
+    if (!data.success) {
+      throw new Error(data.error || 'Failed to fetch stats');
+    }
+
+    return data.data;
+  } catch (error: unknown) {
+    console.error('Error fetching stats:', error);
+    return [];
+  }
+}
+
+// Product Detail Interfaces
+export interface ProductDetail {
+  // Basic Info
+  id: number;
+  assetCode: string;
+  name: string;
+  subtitle: string;
+  description: string;
+  tokenSymbol: string;
+  decimals: number;
+
+  // Investment Parameters
+  underlyingAssets: string;
+  poolCapUsd: number;
+  riskLevel: number;
+  riskLabel: string;
+  targetApy: number;
+
+  // Contract Info
+  contractAddress: string;
+  chainId: number;
+
+  // Display Info
+  category: string;
+  categoryColor: string;
+  iconUrl: string;
+
+  // Performance Data
+  currentApy: number;
+  tvlUsd: number;
+  volume24hUsd: number;
+  volumeChangeVsAvg: number;
+  circulatingSupply: number;
+  poolCapacityPercent: number;
+  currentPrice: number;
+
+  // Custody Info
+  custody?: {
+    custodianName: string;
+    custodyType: string;
+    custodyLocation: string;
+    auditorName: string;
+    lastAuditDate: string;
+    auditReportUrl?: string;
+    additionalInfo?: any;
+  };
+
+  // Audit Reports
+  auditReports: Array<{
+    reportType: string;
+    reportTitle: string;
+    reportDate: string;
+    auditorName: string;
+    summary: string;
+    reportUrl: string;
+  }>;
+
+  // Product Links
+  productLinks: Array<{
+    linkText: string;
+    linkUrl: string;
+    description: string;
+    displayArea: string;  // 'protocol' | 'verification' | 'both'
+    displayOrder: number;
+  }>;
+}
+
+// Fetch single product by ID (simple format)
+export async function fetchProductById(id: number): Promise<Product | null> {
+  try {
+    const response = await fetch(`${API_BASE_URL}/fundmarket/products/${id}`, {
+      cache: 'no-store',
+    });
+
+    if (!response.ok) {
+      throw new Error('Failed to fetch product');
+    }
+
+    const data = await response.json();
+
+    if (!data.success) {
+      throw new Error(data.error || 'Failed to fetch product');
+    }
+
+    return data.data;
+  } catch (error: unknown) {
+    console.error('Error fetching product:', error);
+    return null;
+  }
+}
+
+// Daily return point
+export interface DailyReturnPoint {
+  date: string;       // "YYYY-MM-DD"
+  ytPrice: number;
+  dailyReturn: number; // %
+  hasData: boolean;
+}
+
+export async function fetchDailyReturns(id: number, year: number, month: number): Promise<DailyReturnPoint[]> {
+  try {
+    const response = await fetch(
+      `${API_BASE_URL}/fundmarket/products/${id}/daily-returns?year=${year}&month=${month}`,
+      { cache: 'no-store' }
+    );
+    if (!response.ok) throw new Error('Failed to fetch daily returns');
+    const data = await response.json();
+    if (!data.success) throw new Error(data.error || 'Failed to fetch daily returns');
+    return data.data ?? [];
+  } catch (error: unknown) {
+    console.error('Error fetching daily returns:', error);
+    return [];
+  }
+}
+
+// History point for APY/Price chart
+export interface HistoryPoint {
+  time: string;   // "MM/DD HH:mm"
+  apy: number;    // APY %
+  price: number;  // YT token price in USDC
+}
+
+// Fetch hourly APY/price history for chart
+export async function fetchProductHistory(id: number): Promise<HistoryPoint[]> {
+  try {
+    const response = await fetch(`${API_BASE_URL}/fundmarket/products/${id}/history`, {
+      cache: 'no-store',
+    });
+    if (!response.ok) throw new Error('Failed to fetch history');
+    const data = await response.json();
+    if (!data.success) throw new Error(data.error || 'Failed to fetch history');
+    return data.data ?? [];
+  } catch (error: unknown) {
+    console.error('Error fetching product history:', error);
+    return [];
+  }
+}
+
+// Fetch product detail by ID (detailed format)
+export async function fetchProductDetail(id: number): Promise<ProductDetail | null> {
+  try {
+    const response = await fetch(`${API_BASE_URL}/fundmarket/products/${id}`, {
+      cache: 'no-store',
+    });
+
+    if (!response.ok) {
+      throw new Error('Failed to fetch product detail');
+    }
+
+    const data = await response.json();
+
+    if (!data.success) {
+      throw new Error(data.error || 'Failed to fetch product detail');
+    }
+
+    return data.data;
+  } catch (error: unknown) {
+    console.error('Error fetching product detail:', error);
+    return null;
+  }
+}