```

refactor Add sign-in form component with OAuth integration, Zod validation, i18n support, and password visibility toggle following REQ0016 requirements
```

002_source/cms/public/locales/dev/sign_in.json

@@ -0,0 +1,31 @@
+{
+  "sign-in": "Sign in / 登入",
+  "dont-have-an-account": "Don't have an account ?",
+  "continue-with_fh": "以",
+  "continue-with_sh": "繼續",
+  "forgot-password": "Forgot password",
+  "user": "用戶名稱",
+  "password": "密碼",
+  "email-address": "用戶電郵",
+  "first-name-is-required": "名字是必填项",
+  "last-name-is-required": "姓氏不能为空",
+  "email-is-required": "邮箱不能为空",
+  "password-should-be-at-least-6-characters": "密码至少需要6个字符",
+  "you-must-accept-the-terms-and-conditions": "您必须接受条款和条件",
+  "sign-up": "注册",
+  "already-have-an-account": "已有账号？",
+  "or": "或",
+  "create-account": "创建账号",
+  "created-users-are-not-persisted": "已创建的用户不会被保存",
+  "i-have-read-the": "我已阅读",
+  "terms-and-conditions": "用户协议和隐私政策",
+  "e.g.": "例如:",
+  "first-name": "名",
+  "last-name": "姓",
+  "hello": "world",
+  "welcome-title": "Welcome to devias kit pro",
+  "welcome-notes": "A professional template that comes with ready-to-use MUI components developed with one common goal in mind, help you build faster & beautiful applications.",
+  "reset-password": "重置密码",
+  "back-to-login": "返回登录",
+  "send-recovery-link": "发送恢复链接"
+}