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

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

internal/config/config.go

@@ -1,5 +1,3 @@
-
-
 package config
 
 import (
@@ -140,10 +138,10 @@ func Load(filename string) (*Config, error) {
 func expandEnvVars(s string) string {
 	// Pattern to match ${VAR} and $VAR
 	envVarPattern := regexp.MustCompile(`\$\{([^}]+)\}|\$([A-Za-z_][A-Za-z0-9_]*)`)
-	
+
 	return envVarPattern.ReplaceAllStringFunc(s, func(match string) string {
 		var varName string
-		
+
 		// Handle ${VAR} format
 		if strings.HasPrefix(match, "${") && strings.HasSuffix(match, "}") {
 			varName = match[2 : len(match)-1]
@@ -151,12 +149,12 @@ func expandEnvVars(s string) string {
 			// Handle $VAR format
 			varName = match[1:]
 		}
-		
+
 		// Get environment variable value
 		if value := os.Getenv(varName); value != "" {
 			return value
 		}
-		
+
 		// Return empty string if environment variable is not set
 		// This prevents invalid YAML when variables are missing
 		return ""
@@ -200,4 +198,4 @@ func (c *Config) OverrideWithEnv() {
 			c.Bot.ChannelBufferSize = val
 		}
 	}
-}
+}

internal/config/config_test.go

@@ -126,4 +126,4 @@ bot:
 	assert.Equal(t, "https://override.arbitrum.io/rpc", cfg.Arbitrum.RPCEndpoint)
 	assert.Equal(t, 20, cfg.Arbitrum.RateLimit.RequestsPerSecond)
 	assert.Equal(t, 20, cfg.Bot.MaxWorkers)
-}
+}