feat: add logrotate support with SIGHUP signal handling

- Add Reopenable interface in api/types.go for log rotation support
- Add FileWriter.Reopen() method to reopen log files after rotation
- Add MultiWriter.Reopen() method to propagate rotation to all writers
- Update main.go to handle SIGHUP signal for systemctl reload
- Add logrotate configuration file (packaging/logrotate/ja4sentinel)
- Update systemd service with ExecReload for graceful rotation
- Update architecture.yml with logrotate documentation
- Update RPM spec and Dockerfile.package to include logrotate files
- Bump version to 1.1.0

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

internal/output/writers.go

@@ -182,6 +182,28 @@ func (w *FileWriter) Close() error {
 	return nil
 }
 
+// Reopen reopens the log file (for logrotate support)
+func (w *FileWriter) Reopen() error {
+	w.mutex.Lock()
+	defer w.mutex.Unlock()
+
+	if err := w.file.Close(); err != nil {
+		return fmt.Errorf("failed to close file during reopen: %w", err)
+	}
+
+	// Open new file
+	newFile, err := os.OpenFile(w.path, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
+	if err != nil {
+		return fmt.Errorf("failed to reopen file %s: %w", w.path, err)
+	}
+
+	w.file = newFile
+	w.encoder = json.NewEncoder(newFile)
+	w.currentSize = 0
+
+	return nil
+}
+
 // UnixSocketWriter writes log records to a UNIX socket with reconnection logic
 type UnixSocketWriter struct {
 	socketPath        string
@@ -495,6 +517,23 @@ func (mw *MultiWriter) CloseAll() error {
 	return lastErr
 }
 
+// Reopen reopens all writers that support log rotation
+func (mw *MultiWriter) Reopen() error {
+	mw.mutex.Lock()
+	defer mw.mutex.Unlock()
+
+	var lastErr error
+	for _, w := range mw.writers {
+		if reopenable, ok := w.(api.Reopenable); ok {
+			if err := reopenable.Reopen(); err != nil {
+				lastErr = err
+			}
+		}
+	}
+
+	return lastErr
+}
+
 // BuilderImpl implements the api.Builder interface
 type BuilderImpl struct{}