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

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

internal/auth/middleware.go

@@ -6,21 +6,21 @@ import (
 	"net/http"
 	"os"
 	"strings"
-	"time"
 	"sync"
+	"time"
 
 	"github.com/fraktal/mev-beta/internal/logger"
 )
 
 // AuthConfig holds authentication configuration
 type AuthConfig struct {
-	APIKey         string
-	BasicUsername  string
-	BasicPassword  string
-	AllowedIPs     []string
-	RequireHTTPS   bool
-	RateLimitRPS   int
-	Logger         *logger.Logger
+	APIKey        string
+	BasicUsername string
+	BasicPassword string
+	AllowedIPs    []string
+	RequireHTTPS  bool
+	RateLimitRPS  int
+	Logger        *logger.Logger
 }
 
 // Middleware provides authentication middleware for HTTP endpoints
@@ -246,17 +246,17 @@ func (m *Middleware) CleanupRateLimiters() {
 
 	m.mu.Lock()
 	defer m.mu.Unlock()
-	
+
 	for ip, limiter := range m.rateLimiter {
 		// Remove limiters that haven't been used recently
 		if len(limiter.requests) == 0 {
 			delete(m.rateLimiter, ip)
 			continue
 		}
-		
+
 		lastRequest := limiter.requests[len(limiter.requests)-1]
 		if lastRequest.Before(cutoff) {
 			delete(m.rateLimiter, ip)
 		}
 	}
-}
+}