docs & ui: 完善 captcha/aibox 文档，登录注册改为邮箱制

- captcha/README.md: 补充字段级接口文档与错误码表
- aibox/README.md: 对照 main.py 源码核对修正（入口/模型/工具/配置）
- static/public/login.html & register.html: 用户名改为邮箱
- static/public/js/register.js: 合并注册页双邮箱框为单一邮箱字段

static/public/js/register.js

@@ -1,11 +1,9 @@
 const form = document.getElementById('form');
-const usernameInput = document.getElementById('regusername');
 const emailInput = document.getElementById('regemail');
 const codeInput = document.getElementById('code');
 const getCodeButton = document.getElementById('getCode');
 const passwordInput = document.getElementById('regpsw');
 const repeatPasswordInput = document.getElementById('repwd');
-const msgTip = document.getElementById('msgTip');
 const emlTip = document.getElementById('emlTip');
 const pwdTip = document.getElementById('pwdTip');
 const codeTip = document.getElementById('codeTip');
@@ -21,27 +19,16 @@ form.addEventListener('reset', function () {
 });
 
 function clearTipStyle() {
-	msgTip.innerHTML = '';
 	emlTip.innerHTML = '';
 	pwdTip.innerHTML = '';
 	codeTip.innerHTML = '';
 
-	msgTip.classList.remove('tip-red', 'tip-yellow', 'tip-green');
 	emlTip.classList.remove('tip-red', 'tip-yellow', 'tip-green');
 	pwdTip.classList.remove('tip-red', 'tip-yellow', 'tip-green');
 	codeTip.classList.remove('tip-red', 'tip-yellow', 'tip-green');
 }
 clearTipStyle();
 
-function checkUsername() {
-	const result = FormValidators.username(usernameInput.value);
-	msgTip.innerHTML = '';
-	msgTip.classList.remove('tip-red', 'tip-yellow', 'tip-green');
-	msgTip.textContent = result.message;
-	msgTip.classList.add(result.className);
-	return result.valid ? result.value : false;
-}
-
 function checkEmail() {
 	const result = FormValidators.email(emailInput.value);
 	emlTip.innerHTML = '';
@@ -103,15 +90,12 @@ function checkCode() {
 	return code;
 }
 
-usernameInput.addEventListener('focus', checkUsername);
 passwordInput.addEventListener('focus', checkPassword);
 repeatPasswordInput.addEventListener('focus', checkPassword);
 
-usernameInput.addEventListener('input', checkUsername);
 passwordInput.addEventListener('input', checkPassword);
 repeatPasswordInput.addEventListener('input', checkPassword);
 
-usernameInput.addEventListener('blur', checkUsername);
 passwordInput.addEventListener('blur', checkPassword);
 repeatPasswordInput.addEventListener('blur', checkPassword);
 
@@ -146,16 +130,15 @@ getCodeButton.addEventListener('click', function () {
 form.addEventListener('submit', async function (e) {
 	e.preventDefault();
 
-	const username = checkUsername();
 	const email = checkEmail();
 	const password = checkPassword();
 	const code = checkCode();
 
-	if (!username || !email || !password || !code) {
+	if (!email || !password || !code) {
 		return;
 	}
 	const jsonBody = JSON.stringify({
-		username,
+		username: email,
 		password
 	});
 

static/public/login.html

@@ -11,8 +11,8 @@
 			<h2>用户登录</h2>
 			<form id="form" novalidate>
 				<div>
-					<label>用户名/推荐邮箱：</label>
-					<input type="text" id="loginUsername" placeholder="请输入用户名">
+					<label>邮箱：</label>
+					<input type="text" id="loginUsername" placeholder="请输入邮箱">
 					<span id="msgTip"></span>
 					<label>密码：</label>
 					<input type="password" id="loginPassword" placeholder="请输入密码">

static/public/register.html

@@ -11,10 +11,7 @@
 			<h2>注册页面</h2>
 			<form id="form">
 				<div>
-					<label>用户名/推荐邮箱：</label>
-					<input type="text" id="regusername" placeholder="请输入用户名">
-					<span id="msgTip" ></span>
-					<label>邮箱号：</label>
+				<label>邮箱号：</label>
 					<input type="email" id="regemail" placeholder="请输入邮箱号">
 					<div class="code-box">验证码：
 						<input type="text" id="code" placeholder="请输入6位验证码" inputmode="numeric" maxlength="6">