fix(account): set default displayName to Anonymous User

- Change default displayName from formatted wallet address to Anonymous User
- Users can customize their name later via user dropdown
- Provides cleaner default user experience
- Matches professional platform standards

Author: josegomez-dev

contexts/auth/AccountContext.tsx

@@ -119,7 +119,7 @@ export const AccountProvider: React.FC<AccountProviderProps> = ({ children }) =>
       // Add timeout to prevent hanging
       const accountCreationPromise = accountService.createAccount(
         walletData.publicKey,
-        walletData.publicKey,
+        walletData.publicKey, // publicKey parameter (not used for displayName anymore)
         walletData.network
       );
 

lib/services/account-service.ts

@@ -45,7 +45,7 @@ export class AccountService {
     // Match the exact structure from firebase-service.ts and Firebase example
     const newAccount = {
       id: accountId,
-      displayName: publicKey.slice(0, 6) + '...' + publicKey.slice(-4), // Default display name
+      displayName: 'Anonymous User', // Default display name
       walletAddress,
       network: network.toUpperCase(), // Match "TESTNET" format from example
       level: 1,