fix: support universal multi-call deploys

[loglapa]

Fixes #23629

Summary

• let wallet implementations select the entrypoint used for transactions without a signing account
• use DefaultMultiCallEntrypoint for CLI wallet NO_FROM simulation and submission paths
• cover universal deployment without -f using a sponsored FPC in the CLI wallet flow

Testing

• yarn build
• yarn workspace @aztec/wallet-sdk test base-wallet/base_wallet.test.ts
• LOG_LEVEL=error yarn-project/end-to-end/scripts/run_test.sh compose ../cli-wallet/test/flows/universal_deploy.sh
• yarn format cli-wallet
• yarn format wallet-sdk
• yarn lint cli-wallet
• yarn lint wallet-sdk

The build and package checks ran in aztecprotocol/devbox:3.0. The compose flow exercised the local Aztec network and sponsored FPC end to end.

[loglapa]

Rebased onto the current merge-train/spartan tip. Validation in aztecprotocol/devbox:3.0: immutable install, full TypeScript build, wallet-sdk tests (30/30), cli-wallet test command (no Jest tests in that package), format check, lint, and git diff --check all pass. The repository-wide bootstrap reaches the unchanged ipc-runtime prerequisite and stops because this devbox warns that Rust 1.89.0 is not installed; the yarn-project build and changed tests are green. The failed external check only reports the missing ci-external/ci-external-once label; a maintainer needs to add it because contributors cannot add repository labels.