zeekay 4ebae9e600 feat: Postgres-backed double-entry ledger, virtual wallets, reconciliation ...

- pkg/ledger: Store interface + PgStore (pgx, NUMERIC amounts) + MemStore
  Atomic multi-posting transactions, idempotency via reference,
  revert support, multi-ledger tenant isolation, immutable moves
  with post-commit volumes for balance computation (11 tests)

- pkg/wallet: Virtual wallets backed by ledger sub-accounts
  Credit/debit, hold/confirm/void mechanics using
  wallets:{id}:hold:{hold_id} pattern (7 tests)

- pkg/reconciliation: Auto-matching engine
  Compare ledger balances vs provider balances,
  compute drift per asset, policy-based (4 tests)

- compose.yml: hanzoai/sql + hanzoai/kv (not upstream images)

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..

service_test.go

feat: Postgres-backed double-entry ledger, virtual wallets, reconciliation

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service.go

feat: Postgres-backed double-entry ledger, virtual wallets, reconciliation

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types.go

feat: Postgres-backed double-entry ledger, virtual wallets, reconciliation

2026-03-02 09:00:00 -08:00