feat(core): implement core MEV bot functionality with market scanning and Uniswap V3 pricing

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

internal/logger/logger.go

@@ -70,7 +70,7 @@ func New(level string, format string, file string) *Logger {
 	logger := log.New(output, "", 0) // No flags, we'll format ourselves
 
 	logLevel := parseLogLevel(level)
-	
+
 	return &Logger{
 		logger:    logger,
 		level:     logLevel,
@@ -123,7 +123,7 @@ func (l *Logger) Error(v ...interface{}) {
 // This always logs regardless of level since opportunities are critical
 func (l *Logger) Opportunity(txHash, from, to, method, protocol string, amountIn, amountOut, minOut, profitUSD float64, additionalData map[string]interface{}) {
 	timestamp := time.Now().Format("2006/01/02 15:04:05")
-	
+
 	message := fmt.Sprintf(`%s [OPPORTUNITY] 🎯 ARBITRAGE OPPORTUNITY DETECTED
 ├── Transaction: %s
 ├── From: %s → To: %s
@@ -135,7 +135,7 @@ func (l *Logger) Opportunity(txHash, from, to, method, protocol string, amountIn
 └── Additional Data: %v`,
 		timestamp, txHash, from, to, method, protocol,
 		amountIn, amountOut, minOut, profitUSD, additionalData)
-	
+
 	l.logger.Println(message)
 }
 
@@ -144,4 +144,4 @@ func (l *Logger) OpportunitySimple(v ...interface{}) {
 	timestamp := time.Now().Format("2006/01/02 15:04:05")
 	message := fmt.Sprint(v...)
 	l.logger.Printf("%s [OPPORTUNITY] %s", timestamp, message)
-}
+}

internal/logger/logger_test.go

@@ -242,4 +242,4 @@ func TestErrorWithAllLevels(t *testing.T) {
 		assert.Contains(t, output, "ERROR:")
 		assert.Contains(t, output, "test error message")
 	}
-}
+}