refactor(api): Sentry dedup 邏輯移至 Service 層 (leWOOOgo 模組化)

Phase 10.2.1 - 2026-03-27 台北時區
- 將 check_sentry_dedup() 從 Router 移至 SentryService.check_dedup()
- Router 層禁止直接存取 Redis (遵循 leWOOOgo 積木化原則)
- 保持 10 分鐘 TTL 去重窗口

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/api/src/api/v1/sentry_webhook.py

@@ -29,6 +29,7 @@ from src.models.approval import (
     RiskLevel,
 )
 from src.services.approval_db import get_approval_service
+from src.services.sentry_service import get_sentry_service
 from src.services.telegram_gateway import get_telegram_gateway
 from src.utils.timezone import now_taipei_iso
 
@@ -48,6 +49,9 @@ SENTRY_LEVEL_TO_RISK = {
     "info": RiskLevel.LOW,
 }
 
+# 去重配置 (Phase 10.2.1 - 2026-03-27)
+SENTRY_DEDUP_TTL = 600  # 10 分鐘內不重複發送同一 issue
+
 
 class SentryIssuePayload(BaseModel):
     """Sentry Issue Alert Payload (簡化版)"""
@@ -94,6 +98,12 @@ async def handle_sentry_error(
 
         # 提取錯誤資訊
         issue_data = payload.get("data", {}).get("issue", {})
+
+        # Phase 10.2.1: 去重檢查 (10 分鐘內不重複發送)
+        issue_id = issue_data.get("id")
+        sentry_service = get_sentry_service()
+        if not await sentry_service.check_dedup(issue_id, ttl=SENTRY_DEDUP_TTL):
+            return {"status": "deduplicated", "issue_id": issue_id, "ttl": SENTRY_DEDUP_TTL}
         event_data = payload.get("data", {}).get("event", {})
 
         error_context = {