[lint] fix more issues

Author: capcom6

internal/sms-gateway/models/models.go

@@ -45,7 +45,7 @@ type Device struct {
 }
 
 func NewDevice(name, pushToken *string) *Device {
-	//nolint:exhaustruct // pertial constructor
+	//nolint:exhaustruct // partial constructor
 	return &Device{
 		Name:      name,
 		PushToken: pushToken,

internal/sms-gateway/modules/push/client.go

@@ -1,13 +1,16 @@
 package push
 
 import (
+	"errors"
 	"fmt"
 
 	"github.com/android-sms-gateway/server/internal/sms-gateway/modules/push/client"
 	"github.com/android-sms-gateway/server/internal/sms-gateway/modules/push/fcm"
 	"github.com/android-sms-gateway/server/internal/sms-gateway/modules/push/upstream"
 )
 
+var ErrInvalidPushMode = errors.New("invalid push mode")
+
 func newClient(config Config) (client.Client, error) {
 	var (
 		c   client.Client
@@ -20,7 +23,7 @@ func newClient(config Config) (client.Client, error) {
 	case ModeUpstream:
 		c, err = upstream.New(config.ClientOptions)
 	default:
-		return nil, fmt.Errorf("invalid push mode: %s", config.Mode)
+		return nil, fmt.Errorf("%w: %s", ErrInvalidPushMode, config.Mode)
 	}
 
 	if err != nil {

internal/sms-gateway/modules/webhooks/models.go

@@ -25,6 +25,7 @@ type Webhook struct {
 }
 
 func newWebhook(extID string, url string, event smsgateway.WebhookEvent, userID string, deviceID *string) *Webhook {
+	//nolint:exhaustruct // partial constructor
 	return &Webhook{
 		ExtID:    extID,
 		URL:      url,

internal/sms-gateway/pubsub/pubsub.go

@@ -1,6 +1,7 @@
 package pubsub
 
 import (
+	"errors"
 	"fmt"
 	"net/url"
 
@@ -13,6 +14,8 @@ const (
 
 type PubSub = pubsub.PubSub
 
+var ErrInvalidScheme = errors.New("invalid scheme")
+
 func New(config Config) (PubSub, error) {
 	if config.URL == "" {
 		config.URL = "memory://"
@@ -37,7 +40,7 @@ func New(config Config) (PubSub, error) {
 			Prefix: topicPrefix,
 		}, opts...)
 	default:
-		return nil, fmt.Errorf("invalid scheme: %s", u.Scheme)
+		return nil, fmt.Errorf("%w: %s", ErrInvalidScheme, u.Scheme)
 	}
 
 	if err != nil {