fix: address remaining code snippet issues from PR review

- Fix FC_NETWORK declaration order and invalid FID in messages guide
- Fix ID_GATEWAY_ADDRESS → ID_REGISTRY_ADDRESS in change-recovery guide
- Fix makeUserData → makeUserDataAdd in register-ens guide
- Fix unquoted fid key in fname API curl example
- Fix latestBlock.blockhash → latestBlock.hash in verify-address guide

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: rishavmukherji

src/app/(docs)/developers/guides/accounts/change-recovery/page.mdx

@@ -35,13 +35,13 @@ await walletClient.writeContract(transferRequest);
 import {
   ID_REGISTRY_EIP_712_TYPES,
   idRegistryABI,
-  ID_GATEWAY_ADDRESS,
+  ID_REGISTRY_ADDRESS,
 } from '@farcaster/hub-web';
 import { walletClient, account } from './clients.ts';
 
 const IdContract = {
   abi: idRegistryABI,
-  address: ID_GATEWAY_ADDRESS,
+  address: ID_REGISTRY_ADDRESS,
   chain: optimism,
 };
 

src/app/(docs)/developers/guides/accounts/register-ens/page.mdx

@@ -63,7 +63,7 @@ const usernameProofMessage = makeUsernameProof(
 
 // Once it's accepted, you can set the username to the ENS name
 
-const usernameMessage = makeUserData(
+const usernameMessage = makeUserDataAdd(
   {
     type: UserDataType.USERNAME,
     value: claim.name,

src/app/(docs)/developers/guides/writing/messages/page.mdx

@@ -26,13 +26,13 @@ import {
 } from '@farcaster/hub-nodejs';
 
 const ACCOUNT_PRIVATE_KEY: Hex = '0x...'; // Your account key's private key
-const FID = -1; // Your fid
+const FID = 123; // Your fid
+const FC_NETWORK = FarcasterNetwork.MAINNET;
 const ed25519Signer = new NobleEd25519Signer(ACCOUNT_PRIVATE_KEY);
 const dataOptions = {
   fid: FID,
   network: FC_NETWORK,
 };
-const FC_NETWORK = FarcasterNetwork.MAINNET;
 ```
 
 ## Casts

src/app/(docs)/developers/guides/writing/verify-address/page.mdx

@@ -42,7 +42,7 @@ const latestBlock = await publicClient.getBlock();
 const fid = 1n;
 const network = FarcasterNetwork.MAINNET;
 const address = alice.address;
-const blockHash = latestBlock.blockhash;
+const blockHash = latestBlock.hash;
 
 const ethSignature = eip712Signer.signVerificationEthAddressClaim({
   fid,
@@ -99,7 +99,7 @@ const latestBlock = await publicClient.getBlock();
 const fid = 1n;
 const network = FarcasterNetwork.MAINNET;
 const address = alice.address;
-const blockHash = latestBlock.blockhash;
+const blockHash = latestBlock.hash;
 
 const ethSignature = eip712Signer.signVerificationEthAddressClaim({
   fid,

src/app/(docs)/reference/fname/api/page.mdx

@@ -111,7 +111,7 @@ e.g.
 curl -X POST https://fnames.farcaster.xyz/transfers \
   -H "Content-Type: application/json" \
   -d \
-'{"name": "farcaster", "owner": "0x...", "signature": "0x...", "from": 0, "to": 1000, "timestamp": 1641234567, fid: 1000}'
+'{"name": "farcaster", "owner": "0x...", "signature": "0x...", "from": 0, "to": 1000, "timestamp": 1641234567, "fid": 1000}'
 ```
 
 Once a name is registered, it still needs a [UserData](https://snapchain.farcaster.xyz/reference/datatypes/messages#2-userdata) message