chore: version 1.0.7 - add log levels

- Add configurable log levels: DEBUG, INFO, WARN, ERROR
- Replace debug.enabled with log.level in configuration
- Add Warn/Warnf methods for warning messages
- Log orphan events and buffer overflow as WARN
- Log parse errors as WARN
- Log raw events and correlations as DEBUG

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

cmd/logcorrelator/main.go

@@ -38,10 +38,10 @@ func main() {
 		os.Exit(1)
 	}
 
-	// Initialize logger
-	logger := observability.NewLogger("logcorrelator")
+	// Initialize logger with configured level
+	logger := observability.NewLoggerWithLevel("logcorrelator", cfg.Log.GetLevel())
 
-	logger.Info(fmt.Sprintf("Starting logcorrelator version %s", Version))
+	logger.Info(fmt.Sprintf("Starting logcorrelator version %s (log_level=%s)", Version, cfg.Log.GetLevel()))
 
 	// Create sources
 	sources := make([]ports.EventSource, 0, len(cfg.Inputs.UnixSockets))
@@ -52,6 +52,8 @@ func main() {
 			SourceType:        inputCfg.SourceType,
 			SocketPermissions: inputCfg.GetSocketPermissions(),
 		})
+		// Set logger for debug logging
+		source.SetLogger(logger)
 		sources = append(sources, source)
 		logger.Info(fmt.Sprintf("Configured input source: name=%s, path=%s, permissions=%o", inputCfg.Name, inputCfg.Path, inputCfg.GetSocketPermissions()))
 	}
@@ -108,6 +110,9 @@ func main() {
 		NetworkEmit:      false,
 		MaxBufferSize:    domain.DefaultMaxBufferSize,
 	}, &domain.RealTimeProvider{})
+	
+	// Set logger for correlation service
+	correlationSvc.SetLogger(logger.WithFields(map[string]any{"component": "correlation"}))
 
 	logger.Info(fmt.Sprintf("Correlation service initialized: time_window=%s, emit_orphans=%v",
 		cfg.Correlation.GetTimeWindow().String(),