重构 seed 为 WC2026 72 场小组赛与 48 强优胜盘；新增 production 模式仅保留 admin 与赛事示例；提供 prod-init-db 全量重置脚本；管理端 i18n 分包与赛事归档能力。 Co-authored-by: Cursor <cursoragent@cursor.com>
新增 SMS 验证码注册、8 国手机号选择与 Redis 频控；优化登录/注册 UI 及图形验证码样式。 Co-authored-by: Cursor <cursoragent@cursor.com>
Add shared error codes with zh/en/ms messages, coded app exceptions, and locale-aware global filter. Frontends send X-Locale so error text matches the active UI language. Co-authored-by: Cursor <cursoragent@cursor.com>
