Save FPS Configs

FPS Config Records. A dynamic array where each item contains config_field (the configuration field; values come from the configs dynamic enum, such as customer type or risk level; not fixed), option_value (the selectable value for that configuration field, filtered in cascade based on config_field), and fps_change (the FPS score adjustment corresponding to that configuration item; a string numeric value supporting positive/negative signs and decimals).

Audit Frontend Resource. Contains value (an array converting config_field/option_value into Chinese display labels), $behavior (fixed text "Edit client FPS rule configuration"), and $action (always edit), used for backend audit logging.