question: update contracto to match interface

src/voting/Question.sol

@@ -3,56 +3,17 @@ pragma solidity ^0.8.20;
 
 import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
 import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
+import { IQuestion } from "./interfaces/IQuestion.sol";
+import { IPoints } from "../points/interfaces/IPoints.sol";
 
-abstract contract Question is Ownable {
-	// Type declarations
-	enum Status {
-		Null,
-		Active,
-		Ended
-	}
-
-	struct Option {
-		string title;
-		string description;
-		address proposer;
-	}
-
-	struct OptionView {
-		string title;
-		string description;
-		address proposer;
-		uint256 voteCount;
-		uint256 pointsAccrued;
-		bool userVoted;
-	}
-
-	struct QuestionView {
-		string title;
-		string description;
-		uint256 deadline;
-		uint256 totalVoteCount;
-		OptionView[] options;
-		Status status;
-	}
-
+abstract contract Question is Ownable, IQuestion {
 	// State variables
 	string public title;
 	string public description;
 	uint256 public deadline;
-	IERC20 public immutable points;
+	IPoints public immutable points;
 	Option[] private options;
 
-	// Events
-	event QuestionUpdated(string newTitle, string newDescription, uint256 newDeadline);
-	event Voted(address indexed voter, uint256 indexed optionId, uint256 timestamp);
-	event NewOption(address indexed proposer, uint256 indexed optionId, string title);
-
-	// Errors
-	error VotingEnded();
-	error AlreadyVoted();
-	error InvalidOption();
-
 	// Constructor
 	constructor(
 		address initialOwner,
@@ -64,14 +25,14 @@ abstract contract Question is Ownable {
 		title = _title;
 		description = _description;
 		deadline = _deadline;
-		points = IERC20(_pointsAddress);
+		points = IPoints(_pointsAddress);
 
 		// Add an empty option at index 0
 		options.push(Option("", "", msg.sender));
 	}
 
 	// External functions
-	function vote(uint256 optionId) external virtual {
+	function vote(uint256 optionId) external {
 		if (block.timestamp >= deadline) revert VotingEnded();
 		if (optionId == 0 || optionId > options.length) revert InvalidOption();
 
@@ -98,16 +59,16 @@ abstract contract Question is Ownable {
 	}
 
 	// External view functions
-	function getOptions() external view virtual returns (Option[] memory) {
+	function getOptions() external view returns (Option[] memory) {
 		return options;
 	}
 
-	function getOption(uint256 optionId) external view virtual returns (Option memory) {
+	function getOption(uint256 optionId) external view returns (Option memory) {
 		if (optionId >= options.length) revert InvalidOption();
 		return options[optionId];
 	}
 
-	function getQuestionView(address user) external view virtual returns (QuestionView memory) {
+	function getQuestionView(address user) external view returns (QuestionView memory) {
 		uint256 totalVotes = 0;
 		OptionView[] memory optionViews = new OptionView[](options.length);
 
@@ -131,7 +92,8 @@ abstract contract Question is Ownable {
 				deadline: deadline,
 				totalVoteCount: totalVotes,
 				options: optionViews,
-				status: getStatus()
+				status: getStatus(),
+				owner: owner()
 			});
 	}
 
@@ -140,7 +102,7 @@ abstract contract Question is Ownable {
 
 	function _vote(uint256 optionId) internal virtual;
 
-	function _addOption(string memory _title, string memory _description) internal virtual {
+	function _addOption(string memory _title, string memory _description) internal {
 		uint256 optionId = options.length;
 		options.push(Option(_title, _description, msg.sender));
 		emit NewOption(msg.sender, optionId, _title);