Initial commit with translated description

utils/logger.js

@@ -0,0 +1,33 @@
+const fs = require('fs');
+const path = require('path');
+
+const LOG_FILE = path.join(__dirname, '../../../logs/evolver.log');
+
+function log(level, message, data = {}) {
+    const timestamp = new Date().toISOString();
+    const logEntry = {
+        timestamp,
+        level,
+        message,
+        ...data
+    };
+    
+    // Ensure logs directory exists
+    const logDir = path.dirname(LOG_FILE);
+    if (!fs.existsSync(logDir)) {
+        fs.mkdirSync(logDir, { recursive: true });
+    }
+
+    // Append to log file
+    fs.appendFileSync(LOG_FILE, JSON.stringify(logEntry) + '\n');
+    
+    // Also log to console for immediate visibility
+    console.log(`[${level}] ${message}`, JSON.stringify(data));
+}
+
+module.exports = {
+    info: (msg, data) => log('INFO', msg, data),
+    error: (msg, data) => log('ERROR', msg, data),
+    warn: (msg, data) => log('WARN', msg, data),
+    debug: (msg, data) => log('DEBUG', msg, data)
+};