Rename 360.py and 51dalili.py into the daily/ folder and add a one-line Env comment to daily/51dalili.py. Add a new daily/erke.py implementing Hongxing Erke sign-in: environment-driven ERKE_CONF support, signature calculation, ErkeAPI class with get_integral and sign_in methods, logging, multi-account handling, and a summary output. Remove an old QingLong-specific Erke script file (non-ASCII filename).
