fix: wrap errors using %w for proper error propagation

Author: moghit-eou

.gitignore

@@ -1,3 +1,4 @@
 /playground_/
-/bin
+/bin/
 
+/test_.txt

cmd/agent/main.go

@@ -9,7 +9,7 @@ import (
 
 func main() {
 	if len(os.Args) < 2 {
-		log.Println("usage: go run main.go <port> !!!") // I should avoid 1-1023 ports
+		log.Println("usage: go run main.go <port> !!!") // should avoid 1-1023 ports
 		return
 	}
 

internal/execution/runner_docker.go

@@ -22,7 +22,7 @@ func RunCommand(command string) (*Result, error) {
 
 	cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
 	if err != nil {
-		return nil, fmt.Errorf("failed to connect to docker: %v", err)
+		return nil, fmt.Errorf("failed to connect to docker: %w", err)
 	}
 	defer cli.Close()
 
@@ -54,7 +54,7 @@ func RunCommand(command string) (*Result, error) {
 	select {
 	case err := <-errCh:
 		if err != nil {
-			return nil, fmt.Errorf("execution error: %v", err)
+			return nil, fmt.Errorf("execution error: %w", err)
 		}
 	case <-statusCh:
 	case <-waitCtx.Done():
@@ -63,7 +63,7 @@ func RunCommand(command string) (*Result, error) {
 
 	out, err := cli.ContainerLogs(ctx, containerID, container.LogsOptions{ShowStdout: true, ShowStderr: true})
 	if err != nil {
-		return nil, fmt.Errorf("log retrieval failed: %v", err)
+		return nil, fmt.Errorf("log retrieval failed: %w", err)
 	}
 
 	var stdout, stderr bytes.Buffer

internal/network/protocol.go

@@ -15,8 +15,8 @@ type Request struct {
 */
 type Response struct {
 	Status string `json:"status_"`
-
-	Message string `json:"message_"` // json name is used during testing calls
+	Message string `json:"message_"` 
+	// json name is used during testing calls
 	// Message in GO , message in json
 	// it's a mapping layer
 }