refactor: rename ProcessIncomingPRs to CreateNewChangelogEntry for clarity

## CHANGES

- Rename ProcessIncomingPRs method to CreateNewChangelogEntry
- Update method comment to reflect new name
- Update main.go to call renamed method
- Reduce newline spacing in content formatting

cmd/generate_changelog/internal/changelog/processing.go

@@ -61,8 +61,8 @@ func (g *Generator) ProcessIncomingPR(prNumber int) error {
 	return nil
 }
 
-// ProcessIncomingPRs aggregates all incoming PR files for release and includes direct commits
-func (g *Generator) ProcessIncomingPRs(version string) error {
+// CreateNewChangelogEntry aggregates all incoming PR files for release and includes direct commits
+func (g *Generator) CreateNewChangelogEntry(version string) error {
 	files, err := filepath.Glob(filepath.Join(g.cfg.IncomingDir, "*.txt"))
 	if err != nil {
 		return fmt.Errorf("failed to scan incoming directory: %w", err)
@@ -115,7 +115,7 @@ func (g *Generator) ProcessIncomingPRs(version string) error {
 
 	if directCommitsContent != "" {
 		if content.Len() > 0 {
-			content.WriteString("\n\n")
+			content.WriteString("\n")
 		}
 		content.WriteString(directCommitsContent)
 	}

cmd/generate_changelog/main.go

@@ -62,7 +62,7 @@ func run(cmd *cobra.Command, args []string) error {
 	}
 
 	if cfg.ProcessPRsVersion != "" {
-		return generator.ProcessIncomingPRs(cfg.ProcessPRsVersion)
+		return generator.CreateNewChangelogEntry(cfg.ProcessPRsVersion)
 	}
 
 	output, err := generator.Generate()