refactor: remove unused code and fix documentation

- Remove CorrelationKeyFull() alias, use CorrelationKey() everywhere
- Remove duplicate TimeProvider interface from ports/source.go
- Remove unused time import from ports/source.go
- Update README.md: replace ./build.sh and ./test.sh with make commands
- Update RPM package names in README to match current version (1.0.3)

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

internal/domain/event.go

@@ -30,8 +30,3 @@ type NormalizedEvent struct {
 func (e *NormalizedEvent) CorrelationKey() string {
 	return e.SrcIP + ":" + strconv.Itoa(e.SrcPort)
 }
-
-// CorrelationKeyFull returns a proper correlation key (alias for clarity).
-func (e *NormalizedEvent) CorrelationKeyFull() string {
-	return e.CorrelationKey()
-}