Store initial_lots on roll groups, submit market roll as CTP pending legs with cancel closing empty groups, and backfill first-lots for existing active groups.
Co-authored-by: Cursor <cursoragent@cursor.com>
Move business code under modules/, env template to config/, PM2 single qihuo process, and _legacy shims for old imports.
Co-authored-by: Cursor <cursoragent@cursor.com>