Fix lint

client/ssh/config/manager.go

@@ -233,7 +233,6 @@ func (m *Manager) SetupSSHClientConfigWithPeers(domains []string, peerKeys []Pee
 		}
 	}
 
-
 	// Try to create system-wide SSH config
 	if err := os.MkdirAll(m.sshConfigDir, 0755); err != nil {
 		log.Warnf("Failed to create SSH config directory %s: %v", m.sshConfigDir, err)
@@ -334,7 +333,8 @@ func (m *Manager) RemoveSSHClientConfig() error {
 	// Also try to clean up user config
 	homeDir, err := os.UserHomeDir()
 	if err != nil {
-		return nil // Not critical
+		log.Debugf("failed to get user home directory: %v", err)
+		return nil
 	}
 
 	userConfigPath := filepath.Join(homeDir, ".ssh", "config")
@@ -541,7 +541,8 @@ func (m *Manager) RemoveKnownHostsFile() error {
 	// Also try to clean up user known_hosts
 	homeDir, err := os.UserHomeDir()
 	if err != nil {
-		return nil // Not critical
+		log.Debugf("failed to get user home directory: %v", err)
+		return nil
 	}
 
 	userKnownHostsPath := filepath.Join(homeDir, ".ssh", m.userKnownHosts)
@@ -553,4 +554,3 @@ func (m *Manager) RemoveKnownHostsFile() error {
 
 	return nil
 }
-

client/ssh/config/manager_test.go

@@ -207,9 +207,7 @@ func TestManager_DirectoryFallback(t *testing.T) {
 	defer os.RemoveAll(tempDir)
 
 	// Set HOME to temp directory to control user fallback
-	originalHome := os.Getenv("HOME")
-	os.Setenv("HOME", tempDir)
-	defer os.Setenv("HOME", originalHome)
+	t.Setenv("HOME", tempDir)
 
 	// Create manager with non-writable system directories
 	manager := &Manager{
@@ -306,15 +304,7 @@ func TestManager_PeerLimit(t *testing.T) {
 
 func TestManager_ForcedSSHConfig(t *testing.T) {
 	// Set force environment variable
-	originalForce := os.Getenv(EnvForceSSHConfig)
-	os.Setenv(EnvForceSSHConfig, "true")
-	defer func() {
-		if originalForce == "" {
-			os.Unsetenv(EnvForceSSHConfig)
-		} else {
-			os.Setenv(EnvForceSSHConfig, originalForce)
-		}
-	}()
+	t.Setenv(EnvForceSSHConfig, "true")
 
 	// Create temporary directory for test
 	tempDir, err := os.MkdirTemp("", "netbird-ssh-config-test")