Feat/admin credentials pr limit (#19)

* feat: reset admin credentials without requiring current password and update related prompts

* feat: update password requirements to a minimum of 6 characters for admin credentials

cmd/vocat/bootstrap_admin.go

@@ -29,8 +29,8 @@ func runBootstrapAdmin(args []string) error {
 		return fmt.Errorf("read password: %w", err)
 	}
 	password = strings.TrimSuffix(strings.TrimSuffix(password, "\n"), "\r")
-	if len(password) < 12 || len(password) > 1024 {
-		return errors.New("bootstrap password must contain between 12 and 1024 characters")
+	if len(password) < 6 || len(password) > 1024 {
+		return errors.New("bootstrap password must contain between 6 and 1024 characters")
 	}
 	adminUsername := strings.TrimSpace(*username)
 	if len(adminUsername) < 1 || len(adminUsername) > 64 || strings.ContainsAny(adminUsername, "\r\n\t") {

cmd/vocat/menu.go

@@ -596,7 +596,7 @@ func (m *menu) msg(key string) string {
 		"prompt":              {"请选择: ", "Select: "},
 		"invalid":             {"无效选项，请重试。按 Ctrl+C 退出。", "Invalid choice, try again. Press Ctrl+C to exit."},
 		"new_username":        {"新用户名（直接回车保留 %s）: ", "New username (Enter to keep %s): "},
-		"new_pw":              {"新密码 (至少 12 位): ", "New password (min 12 chars): "},
+		"new_pw":              {"新密码 (至少 6 位): ", "New password (min 6 chars): "},
 		"confirm_pw":          {"确认新密码: ", "Confirm new password: "},
 		"pw_changed":          {"管理员账号密码已修改，现有 Web 会话已退出。", "Administrator credentials changed; existing Web sessions were signed out."},
 		"current_web_address": {"当前 Web 监听地址: %s", "Current Web listening address: %s"},