Rename/move scripts (baitianGame.js -> backup/, chinaUnicom.py & bjxd.py -> daily/) and tidy README formatting. Major refactor of bjxd.py: add generic AI support (AI_API_KEY, AI_REQUEST_URL, AI_MODEL, AI_REQUEST_PARAMS) while keeping backward compatibility for HUNYUAN/GLM keys, load .env when available, improve HTTP requests (timeout, headers), use defensive .get() access for JSON fields, enhanced logging and error handling, add article browse exception handling and task flow/delay improvements, and minor behavior tweaks (device header, push notification on no users). Also add new Env declarations for scripts.
