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Add honest accounting and automatic refund mechanism for completed jobs

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Implement honest accounting post-job completion, calculating actual costs, adding margin, and enabling automatic refunds for overpayments via a new endpoint.

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alexpaynex
2026-03-18 19:32:34 +00:00
parent e5bdae7159
commit dfc9ecdc7b
15 changed files with 587 additions and 38 deletions
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lib/db/migrations/0003_refund_mechanism.sql Normal file
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-- Migration: Add refund/honest-accounting columns to jobs table
-- Users are refunded the overpayment (work invoice amount - actual cost) after job completion.
ALTER TABLE jobs
ADD COLUMN IF NOT EXISTS actual_amount_sats INTEGER,
ADD COLUMN IF NOT EXISTS refund_amount_sats INTEGER,
ADD COLUMN IF NOT EXISTS refund_state TEXT,
ADD COLUMN IF NOT EXISTS refund_payment_hash TEXT;
COMMENT ON COLUMN jobs.actual_amount_sats IS 'Actual charge in sats (raw token cost + DO infra + margin), computed post-execution using the locked BTC price';
COMMENT ON COLUMN jobs.refund_amount_sats IS 'Overpayment in sats to return to the user (work_amount_sats - actual_amount_sats, clamped >= 0)';
COMMENT ON COLUMN jobs.refund_state IS 'Refund lifecycle: not_applicable | pending | paid';
COMMENT ON COLUMN jobs.refund_payment_hash IS 'Payment hash of the outgoing Lightning refund payment once sent';