Use client from node create_wallet function

Author: GideonBature

integration_test/tests/wallet.rs

@@ -155,10 +155,12 @@ fn wallet__dump_wallet() {
 fn wallet__encrypt_wallet() {
     let node = Node::with_wallet(Wallet::None, &[]);
 
-    // NOTE: `create_wallet` from node returns the `/wallet/<name>` path required in v17–v20 for encrypt wallet RPC.
-    node.create_wallet("test-wallet").expect("createwallet");
+    // NOTE: Create a new wallet and returns a dedicated client instance for it.
+    // This client will send RPCs to the `/wallet/test-wallet` endpoint.
+    let wallet_client = node.create_wallet("test-wallet").expect("createwallet");
 
-    let _: EncryptWallet = node.client.encrypt_wallet("test-passphrase").expect("encryptwallet");
+    // Use the dedicated client to encrypt the new wallet
+    let _: EncryptWallet = wallet_client.encrypt_wallet("test-passphrase").expect("encryptwallet");
 }
 
 #[test]