v0.9.1

Changed

• Upstream @novasamatech/* → ^0.8.6. Pulls in RFC-0021 coin top-ups (triangle-js-sdks#194), the PaymentTopUpSource codec fix (#198 — PrivateKey/Coins keys are now 64-byte sr25519 secrets, not 32-byte ed25519), the deriveProductEntropyFromSource export for RFC-0007 Option 1 hosts (#205), and host-chat / host-papp internals. All existing handlers (theme, payments, signing, statement-store) continue to work without code changes.

Added

• PaymentTopUpSource.Coins(Vector<Sr25519SecretKey>) flows through to paymentLog.source. handlePaymentTopUp already forwarded params.source as-is, so the new variant lands in the log entry as { tag: 'Coins', value: Uint8Array[] }. Each key in the vector is 64 bytes after the upstream codec fix.
• setPaymentTopUpBehavior(behavior) test control for driving products through the RFC-0021 PartialPayment error path. Behavior is 'ok' (default), { type: 'partial', credited } (credit credited and reject with PaymentTopUpErr.PartialPayment({ credited }), mirroring how a real host reports that only some coins could be claimed), or { type: 'reject', reason: 'InvalidSource' | 'InsufficientFunds' }. The paymentLog entry always records the attempted amount and source regardless of outcome.
• PaymentTopUpBehavior type exported from the package root so tests can type the argument.

Internal

• Integration tests for the coins round-trip and the partial-payment behavior. The partial-payment test asserts both the rejected promise's payload.credited and that the balance was bumped by exactly that amount.
• Test product gained paymentTopUpCoins(amount, keysHex[]) helper.