fix(codecatalyst): get MDE endpoint from MDE-provided env var

Co-authored-by: C Tidd <[email protected]>
Co-authored-by: C Tidd <[email protected]>

Author: 3 people

.changes/next-release/Feature-666cb5e9-eff1-41d9-bcf8-1d65cda2dd2c.json

@@ -0,0 +1,4 @@
+{
+	"type": "Feature",
+	"description": "Use MDE endpoint set by environment variable"
+}

src/shared/clients/devenvClient.ts

@@ -11,7 +11,7 @@ import { getCodeCatalystDevEnvId } from '../vscode/env'
 import { ExtensionUserActivity } from '../extensionUtilities'
 
 const environmentAuthToken = '__MDE_ENV_API_AUTHORIZATION_TOKEN'
-const environmentEndpoint = 'http://127.0.0.1:1339'
+const environmentEndpoint = process.env['__MDE_ENVIRONMENT_API'] ?? 'http://127.0.0.1:1339'
 
 /**
  * Client to the MDE quasi-IMDS localhost endpoint.