feat(billing): add prepaid payments and receipts (Phase 5 Payments)#975

law-chain-hot wants to merge 6 commits into

codex/billing-v3-pr4-billing-uiboxlite-ai/boxlite:codex/billing-v3-pr4-billing-uifrom

codex/billing-v3-pr5-paymentboxlite-ai/boxlite:codex/billing-v3-pr5-paymentCopy head branch name to clipboard