add comments to the repl package

pkg/cli/repl/executor.go

@@ -7,6 +7,9 @@ import (
 	"github.com/LazyBachelor/LazyPM/pkg/cli/commands"
 )
 
+// execute processes the input command and returns the output
+// or an error if it occurs. It handles what type of command is being executed,
+// whether it's a PM command or a shell command, and routes it accordingly.
 func execute(input string) (string, error) {
 	if input == "" {
 		return "", nil
@@ -26,6 +29,8 @@ func execute(input string) (string, error) {
 	return executeShellCommand(input)
 }
 
+// executeShellCommand executes a shell command
+// and returns its output or an error if it occurs.
 func executeShellCommand(input string) (string, error) {
 	parts := strings.Fields(input)
 	if len(parts) == 0 {
@@ -37,6 +42,8 @@ func executeShellCommand(input string) (string, error) {
 	return string(output), err
 }
 
+// executePMCommand executes a PM command using the commands package
+// and returns its output or an error if it occurs.
 func executePMCommand(input string) (string, error) {
 	parts := strings.Fields(input)
 	if len(parts) == 0 {