CI ruff format --check failed on 13 files. Applied ruff format to bring them in line with project formatting (line wrapping, trailing commas, quote consistency). No functional changes.
- Jupiter: SBP via app.juppiter.tech (FPGate P2P v2.1) - Donut: CARD/SBP/SBP_QR via gw.donut.business (Donut P2P) - HMAC-SHA256 signing verified against spec reference vectors - Sticky terminal-status guard in callback (amount_mismatch/declined/cancelled cannot be re-credited by replayed webhook) - Mirrors existing Antilopay/Etoplatezhi mixin pattern: service, mixin, CRUD, Alembic migration, handlers, keyboards, webhook, cabinet route, status mapping - Adds JUPITER and DONUT settings categories with title/description/prefix - Backfills missing ANTILOPAY and ETOPLATEZHI category metadata
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