feat(auth): implement branded HTML templates for auth emails

Add a standardized HTML shell for verification and password reset emails.
Update system wordings with new email copy, buttons, and fallback links.
Strip standalone action links from content to use styled buttons.

system-wordings.ts

@@ -1087,14 +1087,20 @@ export const systemWordingMessages = {
   },
   email: {
     auth: {
+      kicker: 'Account security',
+      linkFallback: 'If the button does not work, copy and paste this link into your browser:',
+      footer: 'You received this automated email because an account action was requested for Pokopia Wiki.',
       verificationSubject: 'Verify your Pokopia Wiki email',
+      verificationActionLabel: 'Verify email',
       verificationHtml:
-        '<p>Open the link below to verify your email:</p><p><a href="{url}">Verify email</a></p><p>The link expires in {hours} hours.</p>',
-      verificationText: 'Open this link to verify your Pokopia Wiki email: {url}\nThe link expires in {hours} hours.',
+        '<p>Welcome to Pokopia Wiki. Confirm this email address to finish setting up your account and unlock verified editing.</p><p><a href="{url}">Verify email</a></p><p>This secure link expires in {hours} hours.</p>',
+      verificationText: 'Verify your Pokopia Wiki email: {url}\nThis secure link expires in {hours} hours.',
       passwordResetSubject: 'Reset your Pokopia Wiki password',
+      passwordResetActionLabel: 'Reset password',
       passwordResetHtml:
-        '<p>Open the link below to reset your password:</p><p><a href="{url}">Reset password</a></p><p>The link expires in {hours} hours.</p>',
-      passwordResetText: 'Open this link to reset your Pokopia Wiki password: {url}\nThe link expires in {hours} hours.'
+        '<p>Use this secure link to choose a new password for your Pokopia Wiki account.</p><p><a href="{url}">Reset password</a></p><p>This link expires in {hours} hours. If you did not request this, you can ignore this email.</p>',
+      passwordResetText:
+        'Reset your Pokopia Wiki password: {url}\nThis link expires in {hours} hours. If you did not request this, you can ignore this email.'
     }
   },
   },
@@ -2155,12 +2161,20 @@ export const systemWordingMessages = {
     },
     email: {
       auth: {
+        kicker: '账号安全',
+        linkFallback: '如果按钮无法打开，请复制以下链接到浏览器：',
+        footer: '这封自动邮件来自 Pokopia Wiki，用于处理你的账号操作。',
         verificationSubject: '验证你的 Pokopia Wiki 邮箱',
-        verificationHtml: '<p>请点击下面的链接完成邮箱验证：</p><p><a href="{url}">验证邮箱</a></p><p>链接将在 {hours} 小时后失效。</p>',
-        verificationText: '请打开以下链接完成 Pokopia Wiki 邮箱验证：{url}\n链接将在 {hours} 小时后失效。',
+        verificationActionLabel: '验证邮箱',
+        verificationHtml:
+          '<p>欢迎来到 Pokopia Wiki。请确认这个邮箱地址，完成账号设置并解锁已验证编辑权限。</p><p><a href="{url}">验证邮箱</a></p><p>安全链接将在 {hours} 小时后失效。</p>',
+        verificationText: '请打开以下链接完成 Pokopia Wiki 邮箱验证：{url}\n安全链接将在 {hours} 小时后失效。',
         passwordResetSubject: '重置你的 Pokopia Wiki 密码',
-        passwordResetHtml: '<p>请点击下面的链接重置密码：</p><p><a href="{url}">重置密码</a></p><p>链接将在 {hours} 小时后失效。</p>',
-        passwordResetText: '请打开以下链接重置 Pokopia Wiki 密码：{url}\n链接将在 {hours} 小时后失效。'
+        passwordResetActionLabel: '重置密码',
+        passwordResetHtml:
+          '<p>请使用这个安全链接为你的 Pokopia Wiki 账号设置新密码。</p><p><a href="{url}">重置密码</a></p><p>链接将在 {hours} 小时后失效。如果这不是你本人操作，可以忽略这封邮件。</p>',
+        passwordResetText:
+          '请打开以下链接重置 Pokopia Wiki 密码：{url}\n链接将在 {hours} 小时后失效。如果这不是你本人操作，可以忽略这封邮件。'
       }
     }
   }