feat(ai): 添加 AI 用户陪练（流式）功能

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2025-09-02 f8f1d6a91b32077c69dd97334559fe3165ff79b6

 src/main/java/cc/mrbird/febs/mall/service/IMemberProfitService.java

@@ -39,4 +39,6 @@
     * 店补/董事
     */
    void storeAndDirectorProfit(Date profitDate);

    void getOrderCoupon(Long orderId);
}