feat: 接入PostgreSQL数据库实现数据持久化
- 将news/batch API从内存存储改为PostgreSQL
- 添加企业实体识别功能（Lagos-inspired）
- 创建三个数据表：news_articles, risk_analyses, entity_mentions
- 实现分页和过滤功能
- 支持在新闻中搜索企业实体
- 添加完整的测试脚本和文档
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
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test-postgres-apis.js
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test-postgres-apis.js
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#!/usr/bin/env node
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/**
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* PostgreSQL API Integration Test Script
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* Tests the news/batch and legal-risk/analyze APIs with PostgreSQL
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*/
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console.log('=== PostgreSQL API Integration Tests ===\n');
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console.log('⚠️ Prerequisites:');
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console.log('1. PostgreSQL must be running locally');
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console.log('2. Set DATABASE_URL environment variable');
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console.log('3. Next.js server must be running (npm run dev)\n');
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const API_BASE = 'http://localhost:3000/api';
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// Test data
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const newsTestData = {
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source: "tech_crawler",
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articles: [
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{
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title: "Apple Inc. Announces New AI Features",
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content: "Apple Inc. CEO Tim Cook announced major AI enhancements at the company's annual developer conference. The new features will integrate with iPhone and Mac products. SEC filings show increased R&D spending.",
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url: "https://example.com/apple-ai",
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publishedAt: new Date().toISOString(),
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author: "John Smith",
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category: "Technology",
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metadata: { tags: ["AI", "Apple", "Tech"] }
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},
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{
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title: "Tesla Reports Q4 Earnings, Elon Musk Discusses Future",
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content: "Tesla Inc. reported strong Q4 earnings. CEO Elon Musk outlined plans for expansion in Shanghai and New York facilities. The company faces regulatory scrutiny from the FTC.",
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url: "https://example.com/tesla-q4",
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publishedAt: new Date().toISOString(),
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author: "Jane Doe",
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category: "Finance"
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},
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{
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title: "Microsoft Corporation Partners with OpenAI",
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content: "Microsoft Corporation deepens partnership with OpenAI. The tech giant based in Seattle continues to invest in artificial intelligence. Bill Gates commented on the partnership's potential.",
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url: "https://example.com/microsoft-openai",
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category: "Technology"
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}
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]
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};
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const riskTestData = {
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companyName: "CryptoFinance Ltd",
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industry: "Cryptocurrency Financial Services",
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searchNews: true, // Enable entity search in news
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dataPoints: {
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revenue: 2000000,
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employees: 15,
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yearFounded: 2023,
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location: "Singapore",
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publiclyTraded: false
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},
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concerns: [
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"New to cryptocurrency market",
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"Regulatory compliance pending",
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"Limited operational history",
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"High volatility sector"
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]
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};
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// Test Commands
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console.log('📝 Test Commands:\n');
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// 1. POST News Batch
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console.log('1️⃣ POST News Batch to PostgreSQL:');
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console.log('```bash');
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console.log(`curl -X POST ${API_BASE}/news/batch \\
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-H "Content-Type: application/json" \\
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-d '${JSON.stringify(newsTestData, null, 2)}'`);
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console.log('```\n');
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// 2. GET News (verify persistence)
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console.log('2️⃣ GET News from PostgreSQL:');
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console.log('```bash');
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console.log(`# Get all news
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curl ${API_BASE}/news/batch
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# Get with filters and pagination
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curl "${API_BASE}/news/batch?source=tech_crawler&limit=5&offset=0"
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# Filter by category
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curl "${API_BASE}/news/batch?category=Technology"`);
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console.log('```\n');
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// 3. POST Risk Analysis with Entity Recognition
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console.log('3️⃣ POST Risk Analysis with Entity Recognition:');
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console.log('```bash');
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console.log(`curl -X POST ${API_BASE}/legal-risk/analyze \\
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-H "Content-Type: application/json" \\
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-d '${JSON.stringify(riskTestData, null, 2)}'`);
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console.log('```\n');
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// 4. GET Risk Analysis History
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console.log('4️⃣ GET Risk Analysis History from PostgreSQL:');
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console.log('```bash');
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console.log(`# Get all analyses
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curl ${API_BASE}/legal-risk/analyze
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# Search by company name
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curl "${API_BASE}/legal-risk/analyze?company=CryptoFinance"
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# With pagination
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curl "${API_BASE}/legal-risk/analyze?limit=5&offset=0"`);
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console.log('```\n');
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// Expected Responses
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console.log('📊 Expected Responses:\n');
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console.log('✅ News Batch POST Response:');
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console.log(JSON.stringify({
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message: "News articles received and stored successfully",
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source: "tech_crawler",
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articlesReceived: 3,
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articlesProcessed: 3,
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totalStored: 3,
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processedArticles: ["...array of articles with PostgreSQL IDs..."],
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storage: "PostgreSQL"
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}, null, 2));
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console.log('\n✅ Risk Analysis POST Response with Entities:');
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console.log(JSON.stringify({
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success: true,
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analysis: {
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companyName: "CryptoFinance Ltd",
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riskLevel: "high",
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riskScore: 73,
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categories: {
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regulatory: "high",
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financial: "high",
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reputational: "high",
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operational: "high",
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compliance: "critical"
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},
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factors: [
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"Company founded less than 2 years ago",
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"Small company size (less than 50 employees)",
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"High-risk industry: Cryptocurrency/Blockchain",
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"4 specific concerns identified",
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"Private company with limited public disclosure"
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],
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recommendations: [
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"Perform detailed background checks",
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"Request financial statements and audits",
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"Ensure compliance with cryptocurrency regulations",
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"Verify AML/KYC procedures are in place"
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],
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entities: [
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{ entityName: "apple inc", entityType: "company", mentions: 1, sentiment: "neutral" },
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{ entityName: "tesla inc", entityType: "company", mentions: 1, sentiment: "neutral" },
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{ entityName: "microsoft corporation", entityType: "company", mentions: 1, sentiment: "neutral" },
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{ entityName: "tim cook", entityType: "person", mentions: 1, sentiment: "neutral" },
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{ entityName: "elon musk", entityType: "person", mentions: 1, sentiment: "neutral" },
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{ entityName: "sec", entityType: "regulator", mentions: 1, sentiment: "neutral" },
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{ entityName: "ftc", entityType: "regulator", mentions: 1, sentiment: "neutral" }
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],
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timestamp: "2024-01-20T14:00:00.000Z"
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},
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message: "Risk analysis completed for CryptoFinance Ltd",
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storage: "PostgreSQL"
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}, null, 2));
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// Database Setup Instructions
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console.log('\n🗄️ PostgreSQL Setup:\n');
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console.log('1. Install PostgreSQL:');
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console.log(' brew install postgresql@15 # macOS');
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console.log(' sudo apt install postgresql # Ubuntu\n');
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console.log('2. Start PostgreSQL:');
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console.log(' brew services start postgresql@15 # macOS');
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console.log(' sudo systemctl start postgresql # Ubuntu\n');
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console.log('3. Create Database:');
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console.log(' createdb perplexica\n');
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console.log('4. Set Environment Variable:');
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console.log(' export DATABASE_URL="postgresql://user:password@localhost:5432/perplexica"\n');
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console.log('5. Install Node Dependencies:');
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console.log(' npm install pg @types/pg drizzle-orm\n');
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// Verification Steps
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console.log('✔️ Verification Steps:\n');
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console.log('1. POST news articles using the curl command');
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console.log('2. GET news to verify they were stored in PostgreSQL');
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console.log('3. POST risk analysis with searchNews=true');
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console.log('4. Check that entities were extracted from news');
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console.log('5. GET risk analyses to verify persistence');
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console.log('6. Restart server and GET again to confirm data persists\n');
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// Notes
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console.log('📌 Notes:');
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console.log('- Tables are auto-created on first API call');
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console.log('- Connection errors will return 503 status');
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console.log('- Entity recognition uses pattern matching (Lagos-inspired)');
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console.log('- All data persists in PostgreSQL (not in-memory)');
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console.log('- Supports pagination with limit/offset parameters');
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console.log('- News search is case-insensitive');
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console.log('- Risk analyses are searchable by company name\n');
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console.log('🚀 Ready to test PostgreSQL integration!');
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