fix(destination-receiver): return full webrequest response from SmartlogDestinationReceiver and migrate to WebrequestClient; update tests, dependencies, docs, and npmextra metadata

test/test.destination-receiver.node.ts

@@ -53,10 +53,7 @@ tap.test('should attempt to send logs to the receiver endpoint', async () => {
   // Create a mock version of the webrequest.postJson method to avoid actual HTTP calls
   const originalPostJson = testDestination['webrequest'].postJson;
   testDestination['webrequest'].postJson = async () => {
-    return {
-      body: { status: 'ok' },
-      statusCode: 200
-    };
+    return { status: 'ok' };
   };
 
   try {