feat(scheduler): 增加库存预警每日 9:30 定时邮件发送任务

inventory-backend/requirements.txt

@@ -17,4 +17,8 @@ qrcode[pil]>=7.4.2
 # [新增] 必须添加，用于处理 token 登录
 Flask-JWT-Extended==4.6.0
 # [新增] Excel 处理库 (解决 No module named 'openpyxl' 报错)
-openpyxl>=3.1.2
+openpyxl>=3.1.2
+# [新增] 定时任务调度器 (库存预警每日邮件)
+APScheduler==3.10.4
+# [新增] 时区处理 (APScheduler 需要)
+pytz

inventory-backend/run.py

@@ -1,9 +1,39 @@
 # inventory-backend/run.py
 from app import create_app
 
-# Gunicorn 或 uWSGI 会寻找名为 'app' 的实例
 app = create_app()
 
+# =========================================================
+# 启动时注册库存预警定时任务（每天 9:30 北京时）
+# =========================================================
+from apscheduler.schedulers.background import BackgroundScheduler
+from apscheduler.triggers.cron import CronTrigger
+import pytz
+
+beijing_tz = pytz.timezone('Asia/Shanghai')
+
+
+def _run_warning_job():
+    with app.app_context():
+        try:
+            from app.services.inventory_task import InventoryWarningService
+            result = InventoryWarningService.check_and_send_warning_emails()
+            print(f"[Scheduler] 库存预警扫描完成: red={result['red_count']}, yellow={result['yellow_count']}")
+        except Exception as e:
+            print(f"[Scheduler] 库存预警任务失败: {e}")
+
+
+scheduler = BackgroundScheduler(timezone=beijing_tz)
+scheduler.add_job(
+    func=_run_warning_job,
+    trigger=CronTrigger(hour=9, minute=30, tzinfo=beijing_tz),
+    id='inventory_warning_daily',
+    name='库存预警每日邮件发送',
+    replace_existing=True
+)
+scheduler.start()
+print("✅ 库存预警定时任务已启动（每天 9:30 北京时间执行）")
+
 if __name__ == '__main__':
     # =================================================
     # 路由打印调试 (启动时会在控制台列出所有 URL)