v0.1.0

Added

• quidz.money: integer minor units with a currency, ISO 4217 exponents for zero-decimal and
  three-decimal currencies, and arithmetic that raises across currencies.
• quidz.clock: the single wall-clock boundary, with a FakeClock that records what was slept
  so no test needs a real sleep.
• quidz.verify: Stripe signature verification over the raw request bytes, with multiple active
  v1 secrets for rotation, every non-v1 scheme discarded, and a 300 second default tolerance
  checked at receipt time. Adyen HMAC verification over the colon-joined signing string, with
  \ and : escaped inside field values and the hexadecimal key decoded before use.
• quidz.events: Stripe and Adyen payloads to one CanonicalEvent, with delivery identity taken
  from stable identity fields and the Adyen (eventCode, success) pair mapped as a pair.
• quidz.model: the payment aggregate, amount conservation invariants, a monotonic state rank,
  and a status derived from the amounts rather than stored.
• quidz.store: SQLite schema with two composite unique constraints, WAL plus busy_timeout
  plus foreign_keys plus synchronous pragmas, and write_tx as BEGIN IMMEDIATE that
  refuses to nest.
• quidz.inbox: claim with a lease, park, drain, and a global retry budget; the claim row and
  the ledger effect commit in one transaction.
• quidz.ledger: transactional application of one canonical event, with the duplicate path
  decided by the unique index rather than by a prior SELECT.
• quidz.reconcile: the thirteen-member drift taxonomy, the two-source classifier, a fail-closed
  gate scoped to the affected payments with materiality thresholds and an audited break-glass,
  and stable JSON and text report renderers.
• quidz.dlq: typed reason codes, full-jitter bounded backoff from an unpredictable generator
  that only a test seeds, and an unknown default that is retryable with a cap.
• quidz.sim: a synthetic provider with seven break modes, a payment list and a settlement
  report, generating no card-like data.
• quidz.metrics: twelve operational counters as an allowlist.
• quidz.cli: quidz demo, quidz replay and quidz reconcile, with the exit-code contract
  documented in the README.
• quidz.app: an optional FastAPI adapter behind the server extra, the only module permitted
  to import a web framework.
• 140 tests, deterministic and network-free, including an import-boundary scan, a forced INSERT
  race across eight threads, and a 20 permutation seeded replay of one event stream.
• mypy --strict over the package and the tests on every interpreter leg, so the py.typed
  marker the wheel ships is a checked promise rather than an asserted one.