fix: captcha retry with 30s delay on OCR failure, max 2 attempts

back/src/wos/wos.service.ts

@@ -113,6 +113,12 @@ export class WosService {
     fid: string,
     code: string,
   ): Promise<{ success: boolean; message: string; err_code?: number }> {
+    for (let attempt = 1; attempt <= 2; attempt++) {
+      if (attempt > 1) {
+        this.logger.warn(`[${fid}] ${code} 캡차 오인식, 30초 대기 후 재시도`);
+        await new Promise((r) => setTimeout(r, 30000));
+      }
+
       let captchaCode: string;
       try {
         captchaCode = await this.solveCaptcha(fid);
@@ -129,15 +135,20 @@ export class WosService {
       );
 
       const data = response.data;
-    this.logger.log(`[${fid}] ${code} captcha=${captchaCode} → code=${data.code} err=${data.err_code} msg=${data.msg}`);
+      this.logger.log(`[${fid}] ${code} attempt=${attempt} captcha=${captchaCode} → code=${data.code} err=${data.err_code} msg=${data.msg}`);
 
+      if (data.code === 0) return { success: true, message: SUCCESS_MSG };
+      if (data.err_code === 40103 && attempt < 2) continue;
       return {
-      success: data.code === 0,
-      message: data.code === 0 ? SUCCESS_MSG : (data.msg || `실패 (${data.err_code})`),
+        success: false,
+        message: data.msg || `실패 (${data.err_code})`,
         err_code: data.err_code,
       };
     }
 
+    return { success: false, message: '알 수 없는 오류' };
+  }
+
   async redeemAll(fid: string) {
     const activeCoupons = await this.wosCouponRepo.find({
       where: { is_expired: false },