feat: NPM remote mode for cross-machine deployments

- Add npm_remote setting: when enabled, proxy forwards to server_ip with
  published host ports instead of Docker container names
- Deployer looks up assigned host port via InspectContainerPort in remote mode
- Auto-remove stale containers with same name before creating new ones
- Add Remote NPM toggle with warning on NPM settings page
- DB migration + schema for npm_remote column

internal/deployer/bluegreen.go

@@ -162,7 +162,7 @@ func (d *Deployer) blueGreenDeploy(
 		}
 		d.publishDeployStatus(deployID, project.ID, stage.ID, imageTag, "configuring_proxy", "")
 
-		proxyRouteID, err = d.configureProxy(ctx, deployID, settings, containerName, project.Port, subdomain)
+		proxyRouteID, err = d.configureProxy(ctx, deployID, settings, containerID, containerName, project.Port, subdomain)
 		if err != nil {
 			return containerID, "", instanceID, fmt.Errorf("configure proxy: %w", err)
 		}