fix: log raw JSON on parse errors for debugging

- Add raw JSON payload to parse error warnings
- Helps diagnose malformed JSON from senders
- Version bumped to 1.1.4

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

packaging/rpm/logcorrelator.spec

@@ -2,7 +2,7 @@
 # Compatible with CentOS 7, Rocky Linux 8, 9, 10
 
 # Define version before Version: field for RPM macro support
-%global spec_version 1.1.3
+%global spec_version 1.1.4
 
 Name:           logcorrelator
 Version:        %{spec_version}
@@ -120,6 +120,9 @@ fi
 /etc/logrotate.d/logcorrelator
 
 %changelog
+* Mon Mar 02 2026 logcorrelator <dev@example.com> - 1.1.4-1
+- Fix: Log raw JSON data on parse errors for debugging
+
 * Mon Mar 02 2026 logcorrelator <dev@example.com> - 1.1.3-1
 - Refactor: Switch Unix sockets from STREAM to DGRAM mode (SOCK_DGRAM)
 - Test: Comprehensive tests added - coverage improved to 74.4%