Add telemetry for Python Environments extension use on activation (#25578)

Author: eleanorjboyd

src/client/startupTelemetry.ts

@@ -136,6 +136,7 @@ async function getActivationTelemetryProps(
     const usingGlobalInterpreter = interpreter
         ? isUsingGlobalInterpreterInWorkspace(interpreter.path, serviceContainer)
         : false;
+    const usingEnvironmentsExtension = useEnvExtension();
 
     return {
         condaVersion,
@@ -148,5 +149,6 @@ async function getActivationTelemetryProps(
         usingGlobalInterpreter,
         appName,
         isFirstSession,
+        usingEnvironmentsExtension,
     };
 }

src/client/telemetry/index.ts

@@ -404,6 +404,10 @@ export interface IEventNamePropertyMapping {
          * to approximately guess if it's the first session.
          */
         isFirstSession?: boolean;
+        /**
+         * If user has enabled the Python Environments extension integration
+         */
+        usingEnvironmentsExtension?: boolean;
     };
     /**
      * Telemetry event sent when substituting Environment variables to calculate value of variables