feat: Keep-Alive correlation, TTL management, SIGHUP handling, logrotate support

Major features:
- One-to-many correlation mode (Keep-Alive) for HTTP connections
- Dynamic TTL for network events with reset on each correlation
- Separate configurable buffer sizes for HTTP and network events
- SIGHUP signal handling for log rotation without service restart
- FileSink.Reopen() method for log file rotation
- logrotate configuration included in RPM
- ExecReload added to systemd service

Configuration changes:
- New YAML structure with nested sections (time_window, orphan_policy, matching, buffers, ttl)
- Backward compatibility maintained for deprecated fields

Packaging:
- RPM version 1.1.0 with logrotate config
- Updated spec file and changelog
- All distributions: el8, el9, el10

Tests:
- New tests for Keep-Alive mode and TTL reset
- Updated mocks with Reopen() interface method

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

internal/app/orchestrator_test.go

@@ -58,6 +58,7 @@ func (m *mockSink) Write(ctx context.Context, log domain.CorrelatedLog) error {
 }
 func (m *mockSink) Flush(ctx context.Context) error { return nil }
 func (m *mockSink) Close() error                    { return nil }
+func (m *mockSink) Reopen() error                   { return nil }
 
 func (m *mockSink) getWritten() []domain.CorrelatedLog {
 	m.mu.Lock()