fix: 统一 fetch 封装，所有 API 请求自动处理 401 跳转登录页

fix(core): move import threading before watchdog thread init to fix gunicorn startup crash

fix(db): add quote stripping to MARIADB_HOST as well to resolve Name or service not known err

fix(db): strip quotes from MariaDB environment variables to prevent PaaS platform parsing crashes

fix(scheduler): prevent silent death of APScheduler thread, add watchdog and scale thread pool

Update app.py

fix: misfire_grace_time 3600s→300s，补执行窗口缩短到5分钟

fix: 修复定时任务静默丢失BUG

Update script.js

Update script.js

Update script.js

Update dashboard.html

Update dashboard.html

Update script.js

Update script.js