refactor: standardize code comments

mcp/logger.go

@@ -1,8 +1,8 @@
 package mcp
 
-// Logger 日志接口（抽象依赖）
-// 使用 Printf 风格的方法名，方便集成 logrus、zap 等主流日志库
-// 默认使用全局 logger 包（见 mcp/config.go）
+// Logger interface (abstract dependency)
+// Uses Printf-style method names for easy integration with mainstream logging libraries like logrus, zap, etc.
+// Default uses global logger package (see mcp/config.go)
 type Logger interface {
 	Debugf(format string, args ...any)
 	Infof(format string, args ...any)
@@ -10,7 +10,7 @@ type Logger interface {
 	Errorf(format string, args ...any)
 }
 
-// noopLogger 空日志实现（测试时使用）
+// noopLogger no-op logger implementation (used in tests)
 type noopLogger struct{}
 
 func (l *noopLogger) Debugf(format string, args ...any) {}
@@ -18,7 +18,7 @@ func (l *noopLogger) Infof(format string, args ...any)  {}
 func (l *noopLogger) Warnf(format string, args ...any)  {}
 func (l *noopLogger) Errorf(format string, args ...any) {}
 
-// NewNoopLogger 创建空日志器（测试使用）
+// NewNoopLogger creates no-op logger (for testing)
 func NewNoopLogger() Logger {
 	return &noopLogger{}
 }