Remove account-contract example

A custom account contract can't be transacted through with the current
tooling: the standard EmbeddedWallet resolves a tx's `from` to a built-in
schnorr/ecdsa account by type and has no hook to register a custom account,
so the example could only ever deploy — never actually be used. Rather than
ship a deploy-only example that misleads (or maintain fragile low-level PXE
plumbing), remove it along with its CI workflow and doc references.

The repo now covers 5 working examples, all green in CI.

Author: critesjosh

.github/workflows/account-contract-tests.yml

@@ -21,7 +21,6 @@ This is a collection of Aztec smart contract examples written in Noir, designed
 
 ```
 aztec-examples/
-├── account-contract/        # Custom password-based account contract + TS deploy
 ├── custom-note/             # Defining a custom private note type
 ├── note-send-proof/         # Off-chain note-hash proofs + Vite frontend
 │   ├── circuits/           # Vanilla Noir circuit (aztec-nargo)
@@ -259,10 +258,9 @@ GitHub Actions workflows automatically test examples on pull requests to `next`
 - `prediction-market-tests.yml`
 - `note-send-proof-tests.yml`
 - `test-wallet-webapp-tests.yml`
-- `account-contract-tests.yml`
 - `custom-note-tests.yml`
 
-Each workflow installs the pinned Aztec CLI (`AZTEC_VERSION`), starts a local network when the example's tests need one, compiles circuits/contracts, and runs that example's tests (uploading logs on failure). The `custom-note` workflow is contract-only, so it just compiles; the `account-contract` workflow compiles the contract and runs its deploy script against a local network as a smoke test.
+Each workflow installs the pinned Aztec CLI (`AZTEC_VERSION`), starts a local network when the example's tests need one, compiles circuits/contracts, and runs that example's tests (uploading logs on failure). The `custom-note` workflow is contract-only, so it just compiles.
 
 ## Common Issues and Solutions
 

CLAUDE.md

@@ -6,7 +6,7 @@ A collection of example Aztec smart contracts and circuits written in Noir, desi
 
 ## Overview
 
-This repository contains practical examples demonstrating various features of Aztec's zero-knowledge smart contract platform, from custom notes and account contracts to advanced proof verification patterns.
+This repository contains practical examples demonstrating various features of Aztec's zero-knowledge smart contract platform, from custom notes to advanced proof verification patterns.
 
 You can find additional examples in the Aztec monorepo [docs examples folder](https://github.com/AztecProtocol/aztec-packages/tree/next/docs/examples), including:
 
@@ -18,10 +18,6 @@ You can find additional examples in the Aztec monorepo [docs examples folder](ht
 
 All examples target **Aztec v5.0.0-rc.1**.
 
-### [account-contract](./account-contract)
-
-A custom account contract whose authorization is a password (poseidon2 hash) check instead of a signature, plus TypeScript to deploy and transact through it. Demonstrates the v5 `AccountContract` / `Account` / entrypoint interfaces.
-
 ### [custom-note](./custom-note)
 
 Defining a custom private note type with the `#[note]` macro and inserting it from a contract.