feat(medications): 添加药品分析日志记录功能

src/medications/services/medication-analysis.service.ts

@@ -43,10 +43,12 @@ export class MedicationAnalysisService {
    * @returns 流式文本响应
    */
   async analyzeMedication(medicationId: string, userId: string): Promise<Readable> {
+    this.logger.log(`开始分析药品: ${medicationId}`)
     try {
       // 1. 获取药品信息
       const medication = await this.medicationsService.findOne(medicationId, userId);
       
+      this.logger.log(`获取到药品信息: ${JSON.stringify(medication, null, 2)}`)
       // 2. 构建专业医药分析提示
       const prompt = this.buildMedicationAnalysisPrompt(medication);