chore(account-demo): rebuild vendor bundle against viem#5004 (latest)

Rebuild vendor/aa/index.js from the sibling viem checkout at the PR #5004
head (feat/eip-8130-production @ 0964604), picking up the native-AA send
surface refactor: sendCalls -> sendTransaction, prepareTransaction ->
prepareTransactionRequest, sendTransactionSync, the eip8130Actions/
eip8168Actions decorators + eip8130ChainConfig, and the Keystore rename
(keystoreAbi/keystoreAddress). Sync package-lock after merging main.

Demo typechecks clean, 216 tests pass, and the production build succeeds.

Author: chunter-cb