// SPDX-License-Identifier: MIT pragma solidity ^0.8.30; contract HelloArchitect { string private greeting; // Event emitted when the greeting is changed event GreetingChanged(string newGreeting); // Constructor that sets the initial greeting to "Hello Architect!" constructor() { greeting = "Hello Architect!"; } // Setter function to update the greeting function setGreeting(string memory newGreeting) public { greeting = newGreeting; emit GreetingChanged(newGreeting); } // Getter function to r...