Standard (no-login) CMS filings are mailed in one Priority Mail envelope per
destination agency, batched each postal working-day morning to save postage.
- migration 089: paper_filing_batches table + esign_records.paper_batch_id /
filing_destination_key (idempotent: a filing is batched at most once).
- batch_cover_sheet.py: per-agency cover sheet (sender/dest/date/manifest) +
merged print-job PDF (cover + all enclosed signed filings).
- daily_paper_batch.py worker: gather signed+unbatched cms855/cms10114 filings,
group by destination (MAC by state via mac_routing; Fargo for CMS-10114),
build cover+merged PDF per agency, persist batch, mark filings batched.
Self-gates on postal working days (skips weekends + federal/USPS holidays).
Phase 1 = human prints+mails; phase 2 = wire print-mail API.
- worker-crons: pw-paper-batch systemd timer (Mon-Fri 13:30 UTC, self-gated).
- test_paper_batch.py: 15/15 pass (working-day gating, routing, cover+merge).
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