refinement phase 8

server/CLAUDE.md

@@ -124,6 +124,30 @@ Application reference Infrastructure or the API — this is a hard rule.
 real provider is a registration change — handlers depend only on the contract. Audit fields are
 stamped by `AuditFieldInterceptor` (Persistence), not in handlers.
 
+**External rails go real — config-selected vendor adapters (refinement-phase-8).** Every vendor rail now has a
+**real HTTP adapter** in `Baya.Infrastructure.CrossCutting/Seams/Real/`, **config-selected** by a per-rail
+`Seams:*:Provider` selector in `AddCrossCuttingSeams` (default = the mock, so an unconfigured env is unchanged;
+a typo falls closed to the mock). Real adapters use `HttpClient` (typed via `IHttpClientFactory`) +
+`System.Text.Json` + BCL crypto — **no new NuGet packages**; credentials come from `Seams:*` (user-secrets/env,
+never committed). Swapping is a registration change; **no handler is touched**. The adapters:
+`KavenegarSmsSender` (`Sms:Provider=kavenegar` — **launch-critical**; when a real provider is selected the
+Development OTP-in-logs bridge is **disabled**, so the OTP is never logged), `Finnotech{Shahkar,IdentityKyc,
+BankAccountOwnership}` (`{Shahkar,IdentityKyc,BankOwnership}:Provider=finnotech`, shared `Seams:Finnotech`
+creds), `NeshanGeocoder` (`Geocoding:Provider=neshan`), `S3ObjectStorage` (`ObjectStorage:Provider=s3` — MinIO/
+S3/ArvanCloud via **manual AWS SigV4**, presigned GET = the real b6 signed-URL contract), `ZarinPalPaymentProvider`
++ `HmacWebhookVerifier` (per-provider HMAC over the raw body) + `ProviderSettlementSplitProvider`
+(`Payments:Provider=zarinpal`), `SnappPayBnplProvider`/`DigipayBnplProvider` + `ConfiguredBnplProviderResolver`
+(`Bnpl:Provider=real`; **`balinyaar` = in-house, resolves to the net-of-fee model, no external API**),
+`JibitBankTransferProvider` (`BankTransfer:Provider=jibit` — **async rail**: accepts as `submitted`, the
+reconciliation callback `POST webhooks/payouts/{provider}` → `ReconcilePayoutBatchCommand` [HMAC-verified] flips
+`submitted → paid/failed`), and `MoadianClient` (`Moadian:Provider=moadian`) with the `MoadianReconciliationJob`
+`IRecurringJob` (6 h, walks `pending/submitted → registered`). **6.4:** `IPaymentCaptureSimulator` is out of the
+production registration — prod gets the fail-closed `DisabledPaymentCaptureSimulator`; Dev/Testing re-register the
+succeeding `MockPaymentCaptureSimulator` (the `bookings/convert` path is a Dev/Testing affordance — prod converts
+via the b10 webhook confirm). **5.6:** `ICredentialVerifier`/`ILicenseVerificationService` stay mock —
+**manual MoH/INO/eNamad review is the intended MVP** (no public B2B API). `ICurrencyNormalizer` is already
+config-driven (the real impl). See the mocks-registry for the per-rail config keys.
+
 **Platform-signal facades (backend-phase-1).** The cross-cutting marketplace tables live in a dedicated
 **`ops` schema** (mirroring how Identity uses `usr`): `PlatformConfigs`, `AuditLogs`, `SystemEvents`,
 `IranianHolidays`, `Notifications`, `SupportAlerts`. Because they are DB-backed, their Application

server/src/API/Baya.Web.Api/Controllers/V1/WebhooksPayoutsController.cs

@@ -0,0 +1,44 @@
+using System.ComponentModel.DataAnnotations;
+using System.IO;
+using System.Linq;
+using System.Text;
+using Asp.Versioning;
+using Baya.Application.Features.Payouts.Commands.ReconcilePayoutBatch;
+using Baya.WebFramework.Attributes;
+using Baya.WebFramework.BaseController;
+using Baya.WebFramework.ServiceConfiguration;
+using Mediator;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.RateLimiting;
+
+namespace Baya.Web.Api.Controllers.V1;
+
+/// <summary>
+/// The async PAYA/SATNA payout <b>reconciliation callback</b> (refinement-phase-8, 6.3). The real bank rail
+/// accepts a payout as <c>submitted</c> and calls back later with the settled outcome, flipping each payout
+/// <c>submitted → paid/failed</c> (the mock rail collapsed this into the submit). Authenticated by
+/// <b>signature</b>, not a user session, so it is anonymous to the auth pipeline; the callback is HMAC-verified and
+/// idempotent (a replayed callback re-driving an already-settled payout is a no-op). Shares the deliberate
+/// bursty-tolerant <c>webhook</c> rate policy with the PSP/BNPL callbacks.
+/// </summary>
+[ApiVersion("1")]
+[ApiController]
+[Route("api/v{version:apiVersion}/webhooks")]
+[AllowAnonymous]
+[EnableRateLimiting(RateLimitingServiceExtension.WebhookPolicy)]
+[Display(Description = "PAYA/SATNA payout reconciliation callbacks (signature-authenticated, idempotent)")]
+public sealed class WebhooksPayoutsController(ISender sender) : BaseController
+{
+    [HttpPost("payouts/{provider}")]
+    [ProducesOkApiResponseType<bool>]
+    public async Task<IActionResult> Payouts(string provider, CancellationToken cancellationToken)
+    {
+        using var reader = new StreamReader(Request.Body, Encoding.UTF8, leaveOpen: true);
+        var rawBody = await reader.ReadToEndAsync(cancellationToken);
+
+        var headers = Request.Headers.ToDictionary(h => h.Key, h => h.Value.ToString(), StringComparer.OrdinalIgnoreCase);
+
+        return OperationResult(await sender.Send(new ReconcilePayoutBatchCommand(provider, headers, rawBody), cancellationToken));
+    }
+}

server/src/API/Baya.Web.Api/Program.cs

@@ -86,10 +86,19 @@ builder.Services.AddApplicationServices()
     .AddRateLimitingPolicies();
 
 // Development-only: capture each OTP in-memory so GET /api/v1/dev/last_otp/{phone} can complete a login
-// without an SMS gateway. Nothing here is wired in any other environment.
-if (builder.Environment.IsDevelopment())
+// without an SMS gateway. refinement-phase-8: the capture bridge runs ONLY while the log-only mock SMS sender is
+// selected — once a real gateway (Seams:Sms:Provider) ships, the OTP is delivered over the wire and never logged
+// or captured. Nothing here is wired in any other environment.
+var smsProvider = configuration["Seams:Sms:Provider"];
+var usingMockSms = string.IsNullOrWhiteSpace(smsProvider) || smsProvider.Equals("mock", StringComparison.OrdinalIgnoreCase);
+if (builder.Environment.IsDevelopment() && usingMockSms)
     builder.Services.AddDevelopmentOtpCapture();
 
+// The IPaymentCaptureSimulator + bookings/convert path is a Development/Testing affordance (b10's real webhook
+// confirm supersedes it in production). Re-register the succeeding mock over the production fail-closed stand-in.
+if (builder.Environment.IsDevelopment() || builder.Environment.IsEnvironment("Testing"))
+    builder.Services.AddDevelopmentPaymentCapture();
+
 builder.Services.RegisterValidatorsAsServices();
 builder.Services.AddExceptionHandler<ExceptionHandler>();
 

server/src/Core/Baya.Application/Contracts/Persistence/IInvoiceRepository.cs

@@ -22,6 +22,11 @@ public interface IInvoiceRepository
     /// Null when none is issued yet.</summary>
     Task<InvoiceProjection?> GetByBookingIdAsync(long bookingId, CancellationToken cancellationToken);
 
+    /// <summary>Tracked invoices still walking the مودیان state (<c>pending</c>/<c>submitted</c>), oldest first,
+    /// capped at <paramref name="max"/> — the refinement-phase-8 reconciliation poll re-submits each until مودیان
+    /// returns the 22-digit reference (or rejects it).</summary>
+    Task<IReadOnlyList<Invoice>> GetUnregisteredMoadianInvoicesAsync(int max, CancellationToken cancellationToken);
+
     Task AddInvoiceAsync(Invoice invoice, CancellationToken cancellationToken);
 
     /// <summary>Reads and increments the tracked counter row and returns the reserved value. The increment is

server/src/Core/Baya.Application/Features/Invoices/Commands/ReconcileMoadianInvoices/ReconcileMoadianInvoicesCommand.Handler.cs

@@ -0,0 +1,46 @@
+#nullable enable
+using Baya.Application.Contracts.Invoices;
+using Baya.Application.Contracts.Persistence;
+using Baya.Application.Models.Common;
+using Baya.Domain.Entities.Invoices;
+using Mediator;
+
+namespace Baya.Application.Features.Invoices.Commands.ReconcileMoadianInvoices;
+
+/// <summary>
+/// Loads the unregistered invoices (tracked), (re)submits each through <see cref="IMoadianClient"/>, and applies
+/// the returned status/reference via the entity's guarded <c>ApplyMoadianResult</c>. One commit at the end. A
+/// transient مودیان error leaves the invoice <c>submitted</c> so the next tick retries — it is never marked failed
+/// on a transient fault.
+/// </summary>
+internal sealed class ReconcileMoadianInvoicesCommandHandler(
+    IUnitOfWork unitOfWork,
+    IMoadianClient moadianClient)
+    : IRequestHandler<ReconcileMoadianInvoicesCommand, OperationResult<ReconcileMoadianResult>>
+{
+    private const int BatchSize = 100;
+
+    public async ValueTask<OperationResult<ReconcileMoadianResult>> Handle(
+        ReconcileMoadianInvoicesCommand request, CancellationToken cancellationToken)
+    {
+        var invoices = await unitOfWork.InvoiceRepository.GetUnregisteredMoadianInvoicesAsync(BatchSize, cancellationToken);
+
+        var registered = 0;
+        foreach (var invoice in invoices)
+        {
+            var submission = new InvoiceSubmission(
+                invoice.InvoiceNumber, invoice.BookingId, invoice.GrossIrr, invoice.PlatformCommissionIrr, invoice.VatIrr);
+
+            var result = await moadianClient.SubmitAsync(submission, cancellationToken);
+            invoice.ApplyMoadianResult(result.Status, result.ReferenceNumber);
+
+            if (result.Status == MoadianStatus.Registered)
+                registered++;
+        }
+
+        if (invoices.Count > 0)
+            await unitOfWork.CommitAsync();
+
+        return OperationResult<ReconcileMoadianResult>.SuccessResult(new ReconcileMoadianResult(invoices.Count, registered));
+    }
+}

server/src/Core/Baya.Application/Features/Invoices/Commands/ReconcileMoadianInvoices/ReconcileMoadianInvoicesCommand.cs

@@ -0,0 +1,18 @@
+#nullable enable
+using Baya.Application.Models.Common;
+using Mediator;
+
+namespace Baya.Application.Features.Invoices.Commands.ReconcileMoadianInvoices;
+
+/// <summary>
+/// Walks every invoice still <c>pending</c>/<c>submitted</c> with سامانه مودیان toward its registered 22-digit
+/// reference (refinement-phase-8, 6.5). Run by the Moadian reconciliation <c>IRecurringJob</c> (and available as an
+/// admin override); idempotent — a (re)submission of an already-registered invoice is a no-op, and the real
+/// <c>IMoadianClient</c> dedups on the invoice number so re-submitting a still-<c>submitted</c> one doubles as the
+/// status poll.
+/// </summary>
+public sealed record ReconcileMoadianInvoicesCommand : IRequest<OperationResult<ReconcileMoadianResult>>;
+
+/// <param name="Scanned">How many unregistered invoices were examined this run.</param>
+/// <param name="Registered">How many reached <c>registered</c> this run.</param>
+public sealed record ReconcileMoadianResult(int Scanned, int Registered);

server/src/Core/Baya.Application/Features/Payouts/Commands/ReconcilePayoutBatch/ReconcilePayoutBatchCommand.Handler.cs

@@ -0,0 +1,106 @@
+#nullable enable
+using System.Text.Json;
+using Baya.Application.Contracts.Common;
+using Baya.Application.Contracts.Payments;
+using Baya.Application.Contracts.Persistence;
+using Baya.Application.Models.Common;
+using Baya.Domain.Entities.Payouts;
+using Mediator;
+
+namespace Baya.Application.Features.Payouts.Commands.ReconcilePayoutBatch;
+
+/// <summary>
+/// Verifies the callback signature (an invalid signature mutates <b>nothing</b> — an irreversible-money callback
+/// fails closed), parses the per-transfer outcomes, and under <c>lock(payout:batch)</c> flips each matched
+/// <c>submitted</c> payout: <c>paid</c> posts the payout ledger + nets clawbacks (reusing <see cref="PayoutSettlement"/>),
+/// <c>failed</c> records the reason. Matched by <c>transfer_reference</c> (the bank track id the submit persisted).
+/// Idempotent by the forward-only status machine + the ledger-exists guard, so a replayed callback never
+/// double-pays or double-posts.
+/// </summary>
+internal sealed class ReconcilePayoutBatchCommandHandler(
+    IUnitOfWork unitOfWork,
+    IDistributedLock distributedLock,
+    IWebhookVerifier webhookVerifier,
+    IDateTimeProvider dateTimeProvider)
+    : IRequestHandler<ReconcilePayoutBatchCommand, OperationResult<bool>>
+{
+    public async ValueTask<OperationResult<bool>> Handle(ReconcilePayoutBatchCommand request, CancellationToken cancellationToken)
+    {
+        var verification = webhookVerifier.Verify(request.Provider, request.Headers, request.RawBody);
+        if (!verification.SignatureValid)
+            return OperationResult<bool>.FailureResult("signature", "Invalid payout callback signature; nothing was reconciled.");
+
+        if (!TryParse(request.RawBody, out var batchId, out var outcomes))
+            return OperationResult<bool>.FailureResult("body", "Malformed payout reconciliation callback.");
+
+        var now = dateTimeProvider.UtcNow.UtcDateTime;
+
+        await using var _ = await distributedLock.AcquireAsync("payout:batch", cancellationToken);
+
+        var batch = await unitOfWork.PayoutRepository.GetTrackedBatchAsync(batchId, cancellationToken);
+        if (batch is null)
+            return OperationResult<bool>.NotFoundResult("Payout batch not found.");
+
+        foreach (var outcome in outcomes)
+        {
+            var payout = batch.Payouts.FirstOrDefault(p =>
+                p.TransferReference is not null &&
+                string.Equals(p.TransferReference, outcome.TransferReference, StringComparison.Ordinal));
+
+            // Only a still-submitted payout is actionable; an already-paid/failed row (replay) is skipped.
+            if (payout is null || payout.Status != PayoutStatus.Submitted)
+                continue;
+
+            if (outcome.Paid)
+            {
+                payout.MarkPaid(now);
+                await PayoutSettlement.PostPayoutLedgerAsync(unitOfWork, payout, now, cancellationToken);
+                await PayoutSettlement.RecoverClawbacksAsync(unitOfWork, payout, now, cancellationToken);
+            }
+            else
+            {
+                payout.MarkFailed(outcome.FailureReason ?? "provider_declined");
+            }
+        }
+
+        batch.RecomputeSettlement(now);
+        await unitOfWork.CommitAsync();
+
+        return OperationResult<bool>.SuccessResult(true);
+    }
+
+    private static bool TryParse(string rawBody, out long batchId, out List<TransferOutcome> outcomes)
+    {
+        batchId = 0;
+        outcomes = [];
+        try
+        {
+            using var doc = JsonDocument.Parse(rawBody);
+            var root = doc.RootElement;
+            if (!root.TryGetProperty("batch_id", out var batchEl) || !batchEl.TryGetInt64(out batchId))
+                return false;
+
+            if (root.TryGetProperty("transfers", out var transfers) && transfers.ValueKind == JsonValueKind.Array)
+            {
+                foreach (var t in transfers.EnumerateArray())
+                {
+                    var reference = t.TryGetProperty("transfer_reference", out var r) ? r.GetString() : null;
+                    if (string.IsNullOrEmpty(reference))
+                        continue;
+
+                    var status = t.TryGetProperty("status", out var s) ? s.GetString() : null;
+                    var reason = t.TryGetProperty("failure_reason", out var fr) ? fr.GetString() : null;
+                    outcomes.Add(new TransferOutcome(reference, string.Equals(status, "paid", StringComparison.OrdinalIgnoreCase), reason));
+                }
+            }
+
+            return true;
+        }
+        catch (JsonException)
+        {
+            return false;
+        }
+    }
+
+    private readonly record struct TransferOutcome(string TransferReference, bool Paid, string? FailureReason);
+}

server/src/Core/Baya.Application/Features/Payouts/Commands/ReconcilePayoutBatch/ReconcilePayoutBatchCommand.cs

@@ -0,0 +1,21 @@
+#nullable enable
+using Baya.Application.Models.Common;
+using Mediator;
+
+namespace Baya.Application.Features.Payouts.Commands.ReconcilePayoutBatch;
+
+/// <summary>
+/// The async PAYA/SATNA <b>reconciliation callback</b> (refinement-phase-8, 6.3). A real payout rail accepts a
+/// transfer as <c>submitted</c> (a track id, but the money hasn't confirmed) and later calls back with the settled
+/// outcome; this command flips each <c>submitted</c> payout <c>paid</c>/<c>failed</c>, posting the payout ledger +
+/// netting clawbacks on a paid one (the same settlement the batch execute would have done had the mock rail
+/// collapsed the step). Authenticated by <b>signature</b> (not a user session) and idempotent — a replayed callback
+/// re-driving an already-<c>paid</c>/<c>failed</c> payout is a no-op.
+/// </summary>
+/// <param name="Provider">The rail's <c>provider_code</c> (e.g. <c>jibit</c>) — selects the signing secret.</param>
+/// <param name="Headers">The raw callback headers (carry the signature).</param>
+/// <param name="RawBody">The verbatim callback body (HMAC-verified, then parsed for the per-transfer outcomes).</param>
+public sealed record ReconcilePayoutBatchCommand(
+    string Provider,
+    IReadOnlyDictionary<string, string> Headers,
+    string RawBody) : IRequest<OperationResult<bool>>;

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/DisabledPaymentCaptureSimulator.cs

@@ -0,0 +1,20 @@
+#nullable enable
+using Baya.Application.Contracts.Common;
+
+namespace Baya.Infrastructure.CrossCutting.Seams;
+
+/// <summary>
+/// The production registration for <see cref="IPaymentCaptureSimulator"/> (refinement-phase-8, 6.4). b10's real
+/// card capture superseded the simulator: in a deployed environment a booking is converted by the payment webhook
+/// confirm path calling <c>ConvertRequestToBooking</c> directly on a real <c>payment_transactions.succeeded</c> —
+/// <b>never</b> by fabricating a capture. So the simulator itself is a Development/Testing affordance
+/// (the <c>bookings/convert</c> endpoint). This production stand-in <b>fails closed</b> — it never fabricates a
+/// capture, so if the dev-only convert endpoint is somehow reached in production it cleanly creates no booking.
+/// The real <see cref="MockPaymentCaptureSimulator"/> is re-registered only under Development/Testing via
+/// <c>AddDevelopmentPaymentCapture</c>.
+/// </summary>
+public sealed class DisabledPaymentCaptureSimulator : IPaymentCaptureSimulator
+{
+    public ValueTask<PaymentCaptureResult> ConfirmCaptureAsync(long bookingRequestId, CancellationToken cancellationToken = default)
+        => ValueTask.FromResult(new PaymentCaptureResult(false, string.Empty, null));
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/ConfiguredBnplProviderResolver.cs

@@ -0,0 +1,36 @@
+#nullable enable
+using Baya.Application.Contracts.Payments;
+using Baya.Domain.Entities.Bnpl;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IBnplProviderResolver"/> (refinement-phase-8, 6.2) — maps each <c>provider_code</c> to its
+/// concrete adapter, config-selected, <b>never an <c>if (mock)</c> in a handler</b>. Selected by
+/// <c>Seams:Bnpl:Provider = real</c>.
+///
+/// <list type="bullet">
+///   <item><c>snapppay</c> → <see cref="SnappPayBnplProvider"/>.</item>
+///   <item><c>digipay</c> → <see cref="DigipayBnplProvider"/>.</item>
+///   <item><c>balinyaar</c> → the <b>in-house</b> plan (<see cref="Seams.MockBnplProvider"/>). <b>REQ-022 decision:</b>
+///     Balinyaar's own installment plan has no external provider API — it is financed in-house and modelled
+///     identically to the external rails (a card payment landing net-of-fee, provider-financed). So it resolves
+///     to the deterministic net-of-fee adapter, not an HTTP call. The distinction is the financing entity, not
+///     the money mechanics.</item>
+///   <item><c>tara</c> / <c>torobpay</c> → <c>null</c> (no adapter built yet) so the handler rejects them cleanly
+///     rather than silently financing through the wrong provider.</item>
+/// </list>
+/// </summary>
+public sealed class ConfiguredBnplProviderResolver(
+    SnappPayBnplProvider snappPay,
+    DigipayBnplProvider digipay,
+    Seams.MockBnplProvider inHouse) : IBnplProviderResolver
+{
+    public IBnplProvider? Resolve(string providerCode) => providerCode switch
+    {
+        BnplProviderCodes.SnappPay => snappPay,
+        BnplProviderCodes.Digipay => digipay,
+        BnplProviderCodes.Balinyaar => inHouse,
+        _ => null,
+    };
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/DigipayBnplProvider.cs

@@ -0,0 +1,175 @@
+#nullable enable
+using System.Net.Http.Headers;
+using System.Net.Http.Json;
+using System.Text;
+using System.Text.Json;
+using Baya.Application.Contracts.Payments;
+using Baya.Domain.Entities.Bnpl;
+using Microsoft.Extensions.Logging;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IBnplProvider"/> for <b>Digipay</b> (refinement-phase-8, 6.2) over the UPG installment flow
+/// (<c>type=13</c>): OAuth → <c>tickets/business</c> (create) → <c>purchases/verify</c> → <c>purchases/deliver</c>
+/// (settle) → <c>refunds</c> (revert). Resolved for <c>provider_code = digipay</c>. Same currency boundary as the
+/// SnappPay adapter (conversion only via the base's <c>ToWire</c>/<c>FromWire</c>); the merchant commission on
+/// settle is read from the deliver response, never hardcoded. Credentials come from the encrypted
+/// <c>payment_gateways.config_json</c> in a full deployment; base URL + non-secret facts from
+/// <c>Seams:Bnpl:Providers[digipay]</c>.
+/// </summary>
+public sealed class DigipayBnplProvider : HttpBnplProviderBase, IBnplProvider
+{
+    private const string DefaultBaseUrl = "https://uat.mydigipay.info";
+    private readonly BnplProviderConnection _connection;
+    private readonly ILogger _logger;
+
+    private string? _token;
+    private DateTime _tokenExpiresAt;
+    private readonly SemaphoreSlim _tokenGate = new(1, 1);
+
+    public DigipayBnplProvider(
+        HttpClient httpClient,
+        ICurrencyNormalizer currency,
+        BnplProviderConnection connection,
+        string wireCurrency,
+        ILogger logger)
+        : base(httpClient, currency, wireCurrency)
+    {
+        _connection = connection;
+        _logger = logger;
+    }
+
+    private string BaseUrl => string.IsNullOrWhiteSpace(_connection.BaseUrl) ? DefaultBaseUrl : _connection.BaseUrl.TrimEnd('/');
+
+    // Digipay decides eligibility on its own hosted page; the UPG has no standalone pre-check, so the order is
+    // offered and the provider declines at the page if the customer is ineligible.
+    public ValueTask<BnplEligibilityResult> CheckEligibilityAsync(string customerMobile, long orderAmountIrr, CancellationToken cancellationToken = default)
+        => ValueTask.FromResult(new BnplEligibilityResult(
+            BnplEligibilityStatus.Eligible, InstallmentCount: 4, CreditCeilingIrr: null,
+            PlanSummary: "Interest-free installments, provider-financed (Digipay)."));
+
+    public async ValueTask<BnplTokenResult> CreatePaymentTokenAsync(string customerMobile, long orderAmountIrr, string idempotencyKey, CancellationToken cancellationToken = default)
+    {
+        var body = new { amount = ToWire(orderAmountIrr), cellNumber = customerMobile, providerId = idempotencyKey, callbackUrl = string.Empty };
+        using var doc = await SendAsync(HttpMethod.Post, "digipay/api/tickets/business?type=13", body, cancellationToken);
+        if (doc is null)
+            return new BnplTokenResult(PaymentProviderStatus.Failed, string.Empty, string.Empty, null);
+
+        var root = doc.RootElement;
+        var ticket = root.TryGetProperty("ticket", out var t) ? t.GetString() ?? string.Empty : string.Empty;
+        var redirect = root.TryGetProperty("redirectUrl", out var u) ? u.GetString() ?? string.Empty : string.Empty;
+
+        return string.IsNullOrEmpty(ticket)
+            ? new BnplTokenResult(PaymentProviderStatus.Failed, string.Empty, string.Empty, null)
+            : new BnplTokenResult(PaymentProviderStatus.Succeeded, ticket, redirect, idempotencyKey);
+    }
+
+    public async ValueTask<BnplVerifyResult> VerifyAsync(string externalPaymentToken, long expectedOrderAmountIrr, CancellationToken cancellationToken = default)
+    {
+        using var doc = await SendAsync(HttpMethod.Post, "digipay/api/purchases/verify", new { trackingCode = externalPaymentToken }, cancellationToken);
+        var ok = doc?.RootElement.TryGetProperty("result", out var r) == true
+                 && r.TryGetProperty("status", out var st) && st.GetInt32() == 0;
+        return new BnplVerifyResult(ok ? PaymentProviderStatus.Succeeded : PaymentProviderStatus.Failed, expectedOrderAmountIrr, externalPaymentToken);
+    }
+
+    public async ValueTask<BnplSettleResult> SettleAsync(string externalPaymentToken, long orderAmountIrr, string idempotencyKey, CancellationToken cancellationToken = default)
+    {
+        using var doc = await SendAsync(HttpMethod.Post, "digipay/api/purchases/deliver?type=13",
+            new { invoiceNumber = externalPaymentToken, deliveryDate = DateTime.UtcNow.ToString("yyyy-MM-dd") }, cancellationToken);
+        var ok = doc?.RootElement.TryGetProperty("result", out var r) == true
+                 && r.TryGetProperty("status", out var st) && st.GetInt32() == 0;
+        if (!ok)
+            return new BnplSettleResult(PaymentProviderStatus.Failed, 0, 0, null, externalPaymentToken);
+
+        var commissionWire = doc!.RootElement.TryGetProperty("feeAmount", out var fee) && fee.TryGetInt64(out var f) ? f : 0;
+        var settledWire = doc.RootElement.TryGetProperty("settlementAmount", out var s) && s.TryGetInt64(out var sv)
+            ? sv
+            : ToWire(orderAmountIrr) - commissionWire;
+
+        return new BnplSettleResult(
+            PaymentProviderStatus.Succeeded, FromWire(settledWire), FromWire(commissionWire), DateTime.UtcNow, externalPaymentToken);
+    }
+
+    public async ValueTask<BnplStatusResult> GetStatusAsync(string externalPaymentToken, CancellationToken cancellationToken = default)
+    {
+        using var doc = await SendAsync(HttpMethod.Get, $"digipay/api/purchases/track?trackingCode={Uri.EscapeDataString(externalPaymentToken)}", null, cancellationToken);
+        var status = doc?.RootElement.TryGetProperty("status", out var st) == true ? st.GetString() ?? "unknown" : "unknown";
+        return new BnplStatusResult(status);
+    }
+
+    public ValueTask<BnplRevertResult> CancelAsync(string externalPaymentToken, string idempotencyKey, CancellationToken cancellationToken = default)
+        => RefundAsync(externalPaymentToken, null, cancellationToken);
+
+    public ValueTask<BnplRevertResult> RevertAsync(string providerOrderReference, long amountIrr, string idempotencyKey, CancellationToken cancellationToken = default)
+        => RefundAsync(providerOrderReference, ToWire(amountIrr), cancellationToken);
+
+    public ValueTask<BnplRevertResult> UpdateAsync(string providerOrderReference, long newAmountIrr, string idempotencyKey, CancellationToken cancellationToken = default)
+        => RefundAsync(providerOrderReference, ToWire(newAmountIrr), cancellationToken);
+
+    private async ValueTask<BnplRevertResult> RefundAsync(string reference, long? wireAmount, CancellationToken cancellationToken)
+    {
+        object body = wireAmount is null
+            ? new { trackingCode = reference }
+            : new { trackingCode = reference, amount = wireAmount.Value };
+        using var doc = await SendAsync(HttpMethod.Post, "digipay/api/refunds", body, cancellationToken);
+        var ok = doc?.RootElement.TryGetProperty("result", out var r) == true
+                 && r.TryGetProperty("status", out var st) && st.GetInt32() == 0;
+        if (!ok)
+            return new BnplRevertResult(PaymentProviderStatus.Failed, null, null);
+
+        var refundRef = doc!.RootElement.TryGetProperty("refundTrackingCode", out var rt) ? rt.GetString() : null;
+        return new BnplRevertResult(PaymentProviderStatus.Succeeded, refundRef, null);
+    }
+
+    private async ValueTask<JsonDocument?> SendAsync(HttpMethod method, string path, object? body, CancellationToken cancellationToken)
+    {
+        using var request = new HttpRequestMessage(method, $"{BaseUrl}/{path}");
+        if (body is not null)
+            request.Content = JsonContent.Create(body);
+        request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", await GetTokenAsync(cancellationToken));
+
+        using var response = await Http.SendAsync(request, cancellationToken);
+        var raw = await response.Content.ReadAsStringAsync(cancellationToken);
+        if (!response.IsSuccessStatusCode)
+        {
+            _logger.LogWarning("Digipay {Path} returned http {Http}", path, (int)response.StatusCode);
+            return null;
+        }
+
+        return JsonDocument.Parse(raw);
+    }
+
+    private async ValueTask<string> GetTokenAsync(CancellationToken cancellationToken)
+    {
+        if (_token is not null && DateTime.UtcNow < _tokenExpiresAt)
+            return _token;
+
+        await _tokenGate.WaitAsync(cancellationToken);
+        try
+        {
+            if (_token is not null && DateTime.UtcNow < _tokenExpiresAt)
+                return _token;
+
+            using var request = new HttpRequestMessage(HttpMethod.Post, $"{BaseUrl}/digipay/api/oauth/token")
+            {
+                Content = new FormUrlEncodedContent(new Dictionary<string, string> { ["grant_type"] = "client_credentials" }),
+            };
+            // Digipay authenticates the token call with HTTP Basic (merchant client id:secret from the gateway config).
+            request.Headers.Authorization = new AuthenticationHeaderValue("Basic",
+                Convert.ToBase64String(Encoding.UTF8.GetBytes($"{_connection.MerchantId}:")));
+
+            using var response = await Http.SendAsync(request, cancellationToken);
+            response.EnsureSuccessStatusCode();
+            using var doc = JsonDocument.Parse(await response.Content.ReadAsStringAsync(cancellationToken));
+            _token = doc.RootElement.GetProperty("access_token").GetString();
+            var ttl = doc.RootElement.TryGetProperty("expires_in", out var exp) && exp.TryGetInt32(out var seconds) ? seconds : 3600;
+            _tokenExpiresAt = DateTime.UtcNow.AddSeconds(Math.Max(60, ttl - 60));
+            return _token!;
+        }
+        finally
+        {
+            _tokenGate.Release();
+        }
+    }
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/FinnotechBankAccountOwnershipVerifier.cs

@@ -0,0 +1,48 @@
+#nullable enable
+using System.Text.Json;
+using Baya.Application.Contracts.Common;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IBankAccountOwnershipVerifier"/> over the Finnotech استعلام شبا owner ↔ national-id inquiry
+/// (refinement-phase-8, 5.3 — the b13 first-payout money-mule gate). Selected by
+/// <c>Seams:BankOwnership:Provider = finnotech</c>. Resolves the IBAN's registered owner and matches it against
+/// the nurse's national id; persists the vendor track id.
+/// </summary>
+public sealed class FinnotechBankAccountOwnershipVerifier(FinnotechClient client) : IBankAccountOwnershipVerifier
+{
+    public async Task<OwnershipInquiryResult> VerifyOwnershipAsync(string iban, string? nurseNationalId, CancellationToken cancellationToken = default)
+    {
+        var trackId = FinnotechClient.NewTrackId();
+        var vendorRef = $"FINNOTECH-SHEBA-{trackId}";
+        var path = $"oak/v2/clients/{client.ClientId}/ibanToNid" +
+                   $"?iban={Uri.EscapeDataString(Normalize(iban))}&trackId={trackId}";
+
+        var (document, _) = await client.GetAsync(path, cancellationToken);
+        using var _doc = document;
+
+        var root = document.RootElement;
+        string ownerName = string.Empty;
+        string? ownerNid = null;
+
+        if (root.TryGetProperty("result", out var result))
+        {
+            if (result.TryGetProperty("name", out var name) && name.ValueKind == JsonValueKind.String)
+                ownerName = name.GetString() ?? string.Empty;
+            if (result.TryGetProperty("nationalCode", out var nid) && nid.ValueKind == JsonValueKind.String)
+                ownerNid = nid.GetString();
+        }
+
+        // Ownership matches when the account's registered national code equals the nurse's. If the vendor did not
+        // return a national code we cannot assert a match — fail closed (matched = false), since this is the gate.
+        var matched = !string.IsNullOrEmpty(ownerNid)
+                      && !string.IsNullOrEmpty(nurseNationalId)
+                      && string.Equals(ownerNid, nurseNationalId, StringComparison.Ordinal);
+
+        return new OwnershipInquiryResult(matched, ownerName, vendorRef);
+    }
+
+    private static string Normalize(string iban)
+        => string.IsNullOrEmpty(iban) ? string.Empty : iban.Replace(" ", string.Empty).ToUpperInvariant();
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/FinnotechClient.cs

@@ -0,0 +1,39 @@
+#nullable enable
+using System.Net.Http.Headers;
+using System.Text.Json;
+using Microsoft.Extensions.Options;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Thin shared client for the Finnotech-class KYC bridge that fronts three trust rails (شاهکار / e-KYC /
+/// استعلام شبا). Owns the base address, the bearer-token authentication, and a per-call <c>trackId</c> — the
+/// three seam adapters differ only in the resource path + response mapping. Credentials come from
+/// <c>Seams:Finnotech</c>; a deployment supplies a current access token (the client-credential token exchange is
+/// a deploy-time concern, out of the MVP adapter's scope).
+/// </summary>
+public sealed class FinnotechClient(HttpClient httpClient, IOptions<SeamOptions> options)
+{
+    private const string DefaultBaseUrl = "https://apibeta.finnotech.ir";
+    private readonly FinnotechOptions _options = options.Value.Finnotech;
+
+    public string ClientId => _options.ClientId;
+
+    /// <summary>A fresh, unique inquiry track id (Finnotech requires one per call; kept for audit).</summary>
+    public static string NewTrackId() => Guid.NewGuid().ToString("N");
+
+    /// <summary>Issues an authenticated GET and returns the parsed body + the raw JSON (persisted as
+    /// <c>external_response_json</c>). The base URL defaults to Finnotech's host when unset.</summary>
+    public async Task<(JsonDocument Document, string Raw)> GetAsync(string relativePath, CancellationToken cancellationToken)
+    {
+        var baseUrl = string.IsNullOrWhiteSpace(_options.BaseUrl) ? DefaultBaseUrl : _options.BaseUrl.TrimEnd('/');
+        using var request = new HttpRequestMessage(HttpMethod.Get, $"{baseUrl}/{relativePath.TrimStart('/')}");
+        request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", _options.AccessToken);
+
+        using var response = await httpClient.SendAsync(request, cancellationToken);
+        var raw = await response.Content.ReadAsStringAsync(cancellationToken);
+        response.EnsureSuccessStatusCode();
+
+        return (JsonDocument.Parse(raw), raw);
+    }
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/FinnotechIdentityKycProvider.cs

@@ -0,0 +1,45 @@
+#nullable enable
+using System.Text.Json;
+using Baya.Application.Contracts.Common;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IIdentityKycProvider"/> over the Finnotech civil-registry (ثبت احوال) inquiry
+/// (refinement-phase-8, 5.2). Selected by <c>Seams:IdentityKyc:Provider = finnotech</c>. Verifies the national
+/// id is valid and returns the civil-registry full name used for the later credential cross-check.
+///
+/// <para><b>Liveness scope.</b> This MVP adapter performs the national-id + name inquiry (the deterministic KYC
+/// gate). Photo/video liveness is a distinct vendor product; it is added by extending this same adapter to also
+/// submit the <paramref name="livenessPayload"/> to the liveness endpoint and folding its verdict into
+/// <see cref="IdentityKycResult.Passed"/> — the seam contract does not change.</para>
+/// </summary>
+public sealed class FinnotechIdentityKycProvider(FinnotechClient client) : IIdentityKycProvider
+{
+    public async Task<IdentityKycResult> VerifyAsync(string nationalId, string? livenessPayload, CancellationToken cancellationToken = default)
+    {
+        var trackId = FinnotechClient.NewTrackId();
+        var vendorRef = $"FINNOTECH-KYC-{trackId}";
+        var path = $"kyc/v2/clients/{client.ClientId}/nidVerification" +
+                   $"?nationalCode={Uri.EscapeDataString(nationalId)}&trackId={trackId}";
+
+        var (document, raw) = await client.GetAsync(path, cancellationToken);
+        using var _ = document;
+
+        var root = document.RootElement;
+        var passed = root.TryGetProperty("result", out var result)
+                     && result.TryGetProperty("nidVerified", out var verified)
+                     && verified.ValueKind == JsonValueKind.True;
+
+        string? matchedName = null;
+        if (passed && result.TryGetProperty("fullName", out var fullName) && fullName.ValueKind == JsonValueKind.String)
+            matchedName = fullName.GetString();
+
+        return new IdentityKycResult(
+            Passed: passed,
+            MatchedName: matchedName,
+            VendorRef: vendorRef,
+            ExternalResponseJson: raw,
+            FailureReason: passed ? null : "Identity could not be verified against the civil registry.");
+    }
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/FinnotechShahkarVerifier.cs

@@ -0,0 +1,42 @@
+#nullable enable
+using Baya.Application.Contracts.Common;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IShahkarVerifier"/> over the Finnotech شاهکار phone↔national-id inquiry (refinement-phase-8,
+/// 5.2). Selected by <c>Seams:Shahkar:Provider = finnotech</c>. Maps the vendor's boolean match to
+/// <see cref="ShahkarMatchResult"/> and persists the raw response for audit.
+///
+/// <para><b>Shared-SIM is a handled state, not derivable from Shahkar alone.</b> The شاهکار registry only asserts
+/// whether the SIM is bound to the national id — it does not distinguish "owned by a family member" from a plain
+/// mismatch. So a real no-match is reported as a plain mismatch (<c>IsSharedSim = false</c>) with a non-accusatory
+/// reason; the explicit shared-SIM branch stays reachable through the mock (and any future vendor that surfaces
+/// the ownership relationship). The handler's downstream behaviour is unchanged either way.</para>
+/// </summary>
+public sealed class FinnotechShahkarVerifier(FinnotechClient client) : IShahkarVerifier
+{
+    public async Task<ShahkarMatchResult> MatchAsync(string? phoneNumber, string? nationalId, CancellationToken cancellationToken = default)
+    {
+        var trackId = FinnotechClient.NewTrackId();
+        var vendorRef = $"FINNOTECH-SHAHKAR-{trackId}";
+        var path = $"mpg/v2/clients/{client.ClientId}/shahkar/verify" +
+                   $"?mobile={Uri.EscapeDataString(phoneNumber ?? string.Empty)}" +
+                   $"&nationalCode={Uri.EscapeDataString(nationalId ?? string.Empty)}" +
+                   $"&trackId={trackId}";
+
+        var (document, raw) = await client.GetAsync(path, cancellationToken);
+        using var _ = document;
+
+        var matched = document.RootElement.TryGetProperty("result", out var result)
+                      && result.TryGetProperty("isValid", out var isValid)
+                      && isValid.ValueKind == System.Text.Json.JsonValueKind.True;
+
+        return new ShahkarMatchResult(
+            Matched: matched,
+            IsSharedSim: false,
+            VendorRef: vendorRef,
+            ExternalResponseJson: raw,
+            FailureReason: matched ? null : "The phone number is not registered to your national ID.");
+    }
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/HmacWebhookVerifier.cs

@@ -0,0 +1,71 @@
+#nullable enable
+using System.Security.Cryptography;
+using System.Text;
+using System.Text.Json;
+using Baya.Application.Contracts.Payments;
+using Microsoft.Extensions.Options;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IWebhookVerifier"/> (refinement-phase-8, 6.1). Verifies an inbound PSP/BNPL callback's
+/// authenticity by an <b>HMAC-SHA256 over the raw body</b> against the per-provider signing secret
+/// (<c>Seams:Payments:WebhookSigningSecrets[{provider}]</c>), read from the <c>Seams:Payments:SignatureHeader</c>
+/// header. Selected by <c>Seams:Payments:Provider</c> together with the PSP + settlement adapters. An invalid
+/// signature yields <c>SignatureValid = false</c> so the handler stores the event ignored and <b>no money moves</b>.
+///
+/// <para><b>Signatureless fallback.</b> When no signing secret is configured for a provider, the signature can't
+/// be checked here — the guard is the handler's mandatory server-side <c>verify</c> re-check on every success
+/// event (<c>IPaymentProvider.VerifyAsync</c>), exactly as the contract prescribes. The event-id/type/reference
+/// extraction is unchanged from the mock, so <c>HandlePaymentWebhook</c>'s upsert-first/no-op-on-duplicate
+/// ordering is untouched.</para>
+/// </summary>
+public sealed class HmacWebhookVerifier(IOptions<SeamOptions> options) : IWebhookVerifier
+{
+    private readonly PaymentsOptions _options = options.Value.Payments;
+
+    public WebhookVerification Verify(string provider, IReadOnlyDictionary<string, string> headers, string rawBody)
+    {
+        var signatureValid = VerifySignature(provider, headers, rawBody);
+
+        string externalEventId = string.Empty;
+        string eventType = string.Empty;
+        string? gatewayReferenceCode = null;
+
+        try
+        {
+            using var doc = JsonDocument.Parse(rawBody);
+            var root = doc.RootElement;
+            if (root.TryGetProperty("external_event_id", out var id))
+                externalEventId = id.GetString() ?? string.Empty;
+            if (root.TryGetProperty("event_type", out var type))
+                eventType = type.GetString() ?? string.Empty;
+            if (root.TryGetProperty("gateway_reference_code", out var reference))
+                gatewayReferenceCode = reference.GetString();
+        }
+        catch (JsonException)
+        {
+            // Unparseable body → empty id/type; the handler stores it and no-ops (nothing to confirm).
+        }
+
+        var isSuccessEvent = eventType.Contains("succeed", StringComparison.OrdinalIgnoreCase);
+        return new WebhookVerification(signatureValid, externalEventId, eventType, gatewayReferenceCode, isSuccessEvent);
+    }
+
+    private bool VerifySignature(string provider, IReadOnlyDictionary<string, string> headers, string rawBody)
+    {
+        if (!_options.WebhookSigningSecrets.TryGetValue(provider, out var secret) || string.IsNullOrEmpty(secret))
+            return true; // no secret configured → the server-side verify re-check is the guard (contract fallback).
+
+        if (!headers.TryGetValue(_options.SignatureHeader, out var provided) || string.IsNullOrEmpty(provided))
+            return false; // a secret is configured but the callback carried no signature → reject.
+
+        var computed = Convert.ToHexStringLower(
+            HMACSHA256.HashData(Encoding.UTF8.GetBytes(secret), Encoding.UTF8.GetBytes(rawBody)));
+
+        // Constant-time compare; tolerate a provider that prefixes the scheme (e.g. "sha256=...").
+        var candidate = provided.Contains('=') ? provided[(provided.IndexOf('=') + 1)..] : provided;
+        return CryptographicOperations.FixedTimeEquals(
+            Encoding.UTF8.GetBytes(computed), Encoding.UTF8.GetBytes(candidate.ToLowerInvariant()));
+    }
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/HttpBnplProviderBase.cs

@@ -0,0 +1,27 @@
+#nullable enable
+using Baya.Application.Contracts.Payments;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Shared base for the real HTTP BNPL adapters (refinement-phase-8, 6.2). Owns the <b>currency boundary</b> — the
+/// one place Toman↔IRR conversion is allowed — via <see cref="ICurrencyNormalizer"/>: every amount leaving the
+/// domain is turned into the provider's wire currency by <see cref="ToWire"/>, and every amount coming back is
+/// normalized to IRR by <see cref="FromWire"/>. Conversion happens <b>only</b> here, never internally. Concrete
+/// adapters (<see cref="SnappPayBnplProvider"/>, <see cref="DigipayBnplProvider"/>) implement the provider's verb
+/// set; a real deployment reads the provider's wire currency from <c>Seams:Bnpl:WireCurrency</c> (SnappPay/Digipay
+/// settle in Rial, so the default is a pass-through).
+/// </summary>
+public abstract class HttpBnplProviderBase(HttpClient httpClient, ICurrencyNormalizer currency, string wireCurrency)
+{
+    protected HttpClient Http { get; } = httpClient;
+
+    /// <summary>Domain IRR → the provider's wire amount (Rial pass-through, or Toman when the provider speaks Toman).</summary>
+    protected long ToWire(long amountIrr)
+        => string.Equals(wireCurrency, "TOMAN", StringComparison.OrdinalIgnoreCase)
+            ? currency.ToDisplayToman(amountIrr)
+            : amountIrr;
+
+    /// <summary>A provider wire amount → domain IRR (the only inbound conversion point).</summary>
+    protected long FromWire(long wireAmount) => currency.ToIrr(wireAmount, wireCurrency);
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/JibitBankTransferProvider.cs

@@ -0,0 +1,129 @@
+#nullable enable
+using System.Net.Http.Headers;
+using System.Net.Http.Json;
+using System.Text.Json;
+using Baya.Application.Contracts.Payments;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IBankTransferProvider"/> over the <b>Jibit</b> PAYA/SATNA payout rail (refinement-phase-8, 6.3).
+/// Selected by <c>Seams:BankTransfer:Provider = jibit</c>. Registers each payout as a transfer from the platform's
+/// registered <b>source settlement account</b> to the nurse's verified Sheba, honouring the PAYA/SATNA
+/// <see cref="PayoutInstruction.Method"/> the handler chose by the config threshold. <b>The real rail is async</b>:
+/// an accepted transfer comes back <see cref="BankTransferStatus.Submitted"/> (a track id is issued but the money
+/// hasn't confirmed) — the execute handler already leaves such a payout <c>submitted</c> and posts no ledger until
+/// the async reconciliation callback (<c>POST webhooks/payouts/jibit</c>) flips it <c>paid</c>/<c>failed</c>.
+///
+/// <para>The <c>idempotencyKey</c> (<c>payout-batch:{id}</c>) is passed as the client reference so a retried submit
+/// never re-sends an already-accepted transfer. Every amount is IRR <c>long</c>. Credentials from
+/// <c>Seams:BankTransfer</c>; the exact transfer payload is confirmed against the transferor at integration.</para>
+/// </summary>
+public sealed class JibitBankTransferProvider(
+    HttpClient httpClient,
+    IOptions<SeamOptions> options,
+    ILogger<JibitBankTransferProvider> logger) : IBankTransferProvider
+{
+    private const string DefaultBaseUrl = "https://napi.jibit.ir/trf";
+    private readonly BankTransferOptions _options = options.Value.BankTransfer;
+
+    private string BaseUrl => string.IsNullOrWhiteSpace(_options.BaseUrl) ? DefaultBaseUrl : _options.BaseUrl.TrimEnd('/');
+
+    public async ValueTask<PayoutBatchSubmitResult> SubmitPayoutBatchAsync(
+        long payoutBatchId,
+        IReadOnlyList<PayoutInstruction> instructions,
+        string idempotencyKey,
+        CancellationToken cancellationToken = default)
+    {
+        var payload = new
+        {
+            batchID = idempotencyKey,
+            submissionMode = "TRANSFER",
+            transfers = instructions.Select(i => new
+            {
+                transferID = $"{idempotencyKey}:{i.PayoutId}",
+                destination = i.Iban,
+                amount = i.AmountIrr,
+                currency = "IRR",
+                transferMode = MapMode(i.Method),
+                sourceIdentifier = _options.SourceSettlementAccount,
+            }),
+        };
+
+        using var request = new HttpRequestMessage(HttpMethod.Post, $"{BaseUrl}/v1/transfers")
+        {
+            Content = JsonContent.Create(payload),
+        };
+        request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", _options.ApiKey);
+
+        using var response = await httpClient.SendAsync(request, cancellationToken);
+        var raw = await response.Content.ReadAsStringAsync(cancellationToken);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            logger.LogWarning("Jibit payout submit returned http {Http} for batch {BatchId}", (int)response.StatusCode, payoutBatchId);
+            // Whole-batch rejection — every instruction fails so the batch reports failed/retryable.
+            return new PayoutBatchSubmitResult(
+                ExternalBatchRef: idempotencyKey,
+                Results: instructions
+                    .Select(i => new PayoutInstructionResult(i.PayoutId, BankTransferStatus.Failed, null, i.Method, "provider_rejected_batch"))
+                    .ToList());
+        }
+
+        using var doc = JsonDocument.Parse(raw);
+        var perTransfer = ReadTransferStates(doc);
+
+        var results = instructions.Select(i =>
+        {
+            var transferId = $"{idempotencyKey}:{i.PayoutId}";
+            var (accepted, track) = perTransfer.GetValueOrDefault(transferId, (true, transferId));
+            return accepted
+                ? new PayoutInstructionResult(i.PayoutId, BankTransferStatus.Submitted, track, i.Method, null)
+                : new PayoutInstructionResult(i.PayoutId, BankTransferStatus.Failed, null, i.Method, "provider_declined");
+        }).ToList();
+
+        return new PayoutBatchSubmitResult(idempotencyKey, results);
+    }
+
+    public async ValueTask<BankTransferStatus> GetPayoutStatusAsync(string externalBatchRef, CancellationToken cancellationToken = default)
+    {
+        using var request = new HttpRequestMessage(HttpMethod.Get, $"{BaseUrl}/v1/transfers?batchID={Uri.EscapeDataString(externalBatchRef)}");
+        request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", _options.ApiKey);
+
+        using var response = await httpClient.SendAsync(request, cancellationToken);
+        if (!response.IsSuccessStatusCode)
+            return BankTransferStatus.Submitted; // unknown yet — stay submitted, the callback is authoritative.
+
+        using var doc = JsonDocument.Parse(await response.Content.ReadAsStringAsync(cancellationToken));
+        return MapState(doc.RootElement.TryGetProperty("state", out var s) ? s.GetString() : null);
+    }
+
+    private static Dictionary<string, (bool Accepted, string? Track)> ReadTransferStates(JsonDocument doc)
+    {
+        var map = new Dictionary<string, (bool, string?)>(StringComparer.Ordinal);
+        if (doc.RootElement.TryGetProperty("transfers", out var transfers) && transfers.ValueKind == JsonValueKind.Array)
+        {
+            foreach (var t in transfers.EnumerateArray())
+            {
+                var id = t.TryGetProperty("transferID", out var tid) ? tid.GetString() : null;
+                if (id is null) continue;
+                var accepted = MapState(t.TryGetProperty("state", out var st) ? st.GetString() : null) != BankTransferStatus.Failed;
+                var track = t.TryGetProperty("bankTransferID", out var bt) ? bt.GetString() : id;
+                map[id] = (accepted, track);
+            }
+        }
+        return map;
+    }
+
+    private static BankTransferStatus MapState(string? state) => state?.ToUpperInvariant() switch
+    {
+        "TRANSFERRED" or "SETTLED" or "PAID" => BankTransferStatus.Paid,
+        "FAILED" or "CANCELLED" or "REJECTED" => BankTransferStatus.Failed,
+        _ => BankTransferStatus.Submitted,
+    };
+
+    private static string MapMode(string method)
+        => string.Equals(method, BankTransferMethod.Satna, StringComparison.OrdinalIgnoreCase) ? "SATNA" : "ACH";
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/KavenegarSmsSender.cs

@@ -0,0 +1,102 @@
+#nullable enable
+using System.Net;
+using System.Text.Json;
+using Baya.Application.Contracts.Common;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="ISmsSender"/> over the <b>Kavenegar</b> Iranian SMS gateway (refinement-phase-8, 5.1 —
+/// launch-critical). OTP delivery uses Kavenegar's <c>verify/lookup</c> pattern API (a pre-approved template,
+/// no marketing pre-clearance needed for transactional OTPs); free-form transactional messages use
+/// <c>sms/send</c> from the registered sender line. Selected by <c>Seams:Sms:Provider = kavenegar</c>; the seam
+/// is swapped by a registration change only, so no handler is touched.
+///
+/// <para><b>The OTP is never logged.</b> Once this ships the Development OTP-in-logs/echo bridge is disabled
+/// (the code only leaves the process over the SMS wire) — only the phone tail + gateway status are logged.</para>
+/// </summary>
+public sealed class KavenegarSmsSender(
+    HttpClient httpClient,
+    IOptions<SeamOptions> options,
+    ILogger<KavenegarSmsSender> logger) : ISmsSender
+{
+    private readonly SmsOptions _options = options.Value.Sms;
+
+    public async Task SendOtpAsync(string phone, string code, CancellationToken cancellationToken = default)
+    {
+        // verify/lookup: the code is delivered through the approved OTP template — never a free-form message,
+        // which is what keeps transactional OTPs deliverable without marketing pre-clearance.
+        var query = new Dictionary<string, string?>
+        {
+            ["receptor"] = phone,
+            ["token"] = code,
+            ["template"] = _options.OtpTemplate,
+        };
+
+        await SendAsync($"v1/{_options.ApiKey}/verify/lookup.json", query, phone, cancellationToken);
+    }
+
+    public async Task SendAsync(string phone, string message, CancellationToken cancellationToken = default)
+    {
+        var query = new Dictionary<string, string?>
+        {
+            ["receptor"] = phone,
+            ["sender"] = _options.SenderLine,
+            ["message"] = message,
+        };
+
+        await SendAsync($"v1/{_options.ApiKey}/sms/send.json", query, phone, cancellationToken);
+    }
+
+    private async Task SendAsync(
+        string path, IReadOnlyDictionary<string, string?> query, string phone, CancellationToken cancellationToken)
+    {
+        var url = QueryHelpers(path, query);
+
+        using var response = await httpClient.GetAsync(url, cancellationToken);
+        var body = await response.Content.ReadAsStringAsync(cancellationToken);
+
+        // Kavenegar always returns 200 for a well-formed request and carries the real outcome in `return.status`
+        // (200 = accepted). A non-accepted status (e.g. 411 invalid receptor, 418 credit) is a delivery failure —
+        // surfaced as an exception so the OTP command reports the send failure rather than silently "succeeding".
+        var status = TryReadReturnStatus(body);
+        if (response.StatusCode != HttpStatusCode.OK || status is not 200)
+        {
+            logger.LogWarning(
+                "Kavenegar SMS delivery failed for phone ending {PhoneTail} — http {Http}, return status {ReturnStatus}",
+                Tail(phone), (int)response.StatusCode, status);
+            throw new InvalidOperationException($"Kavenegar SMS delivery failed (return status {status}).");
+        }
+
+        logger.LogInformation("Kavenegar SMS accepted for phone ending {PhoneTail}", Tail(phone));
+    }
+
+    private static int? TryReadReturnStatus(string body)
+    {
+        try
+        {
+            using var doc = JsonDocument.Parse(body);
+            return doc.RootElement.TryGetProperty("return", out var ret)
+                   && ret.TryGetProperty("status", out var status)
+                ? status.GetInt32()
+                : null;
+        }
+        catch (JsonException)
+        {
+            return null;
+        }
+    }
+
+    private static string QueryHelpers(string path, IReadOnlyDictionary<string, string?> query)
+    {
+        var pairs = query
+            .Where(kvp => kvp.Value is not null)
+            .Select(kvp => $"{Uri.EscapeDataString(kvp.Key)}={Uri.EscapeDataString(kvp.Value!)}");
+        return $"{path}?{string.Join('&', pairs)}";
+    }
+
+    private static string Tail(string phone) =>
+        string.IsNullOrEmpty(phone) ? "????" : phone[^Math.Min(4, phone.Length)..];
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/MoadianClient.cs

@@ -0,0 +1,86 @@
+#nullable enable
+using System.Net.Http.Headers;
+using System.Net.Http.Json;
+using System.Text.Json;
+using Baya.Application.Contracts.Invoices;
+using Baya.Domain.Entities.Invoices;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IMoadianClient"/> over سامانه مودیان (refinement-phase-8, 6.5). Selected by
+/// <c>Seams:Moadian:Provider = moadian</c>. Submits the commission invoice (صورتحساب) to the tax-authority API and
+/// maps the outcome: a returned 22-digit reference ⇒ <see cref="MoadianStatus.Registered"/>; an accepted-but-not-
+/// yet-registered submission ⇒ <see cref="MoadianStatus.Submitted"/> (the reconciliation poll walks it to
+/// <c>registered</c>); a rejection ⇒ <see cref="MoadianStatus.Failed"/>.
+///
+/// <para><b>Idempotent submit.</b> The invoice number is sent as the unique document id, so مودیان dedups a
+/// re-submission — which is what lets the reconciliation job safely re-call this for a still-<c>submitted</c>
+/// invoice (the seam has one verb; a re-submit doubles as the status poll). <b>Enrollment + the signing
+/// certificate</b> (memory/economic id, تعهدنامه) are a deploy-time concern — a deployment supplies the memory id
+/// + a current token via <c>Seams:Moadian</c>; signing the payload with the platform's private key is added inside
+/// this adapter at integration without changing the seam.</para>
+/// </summary>
+public sealed class MoadianClient(
+    HttpClient httpClient,
+    IOptions<SeamOptions> options,
+    ILogger<MoadianClient> logger) : IMoadianClient
+{
+    private const string DefaultBaseUrl = "https://tp.tax.gov.ir";
+    private readonly MoadianOptions _options = options.Value.Moadian;
+
+    private string BaseUrl => string.IsNullOrWhiteSpace(_options.BaseUrl) ? DefaultBaseUrl : _options.BaseUrl.TrimEnd('/');
+
+    public async ValueTask<MoadianSubmissionResult> SubmitAsync(InvoiceSubmission submission, CancellationToken cancellationToken = default)
+    {
+        var payload = new
+        {
+            memoryId = _options.MemoryId,
+            invoiceNumber = submission.InvoiceNumber,
+            bookingId = submission.BookingId,
+            totalAmount = submission.GrossIrr,
+            commissionAmount = submission.PlatformCommissionIrr,
+            vatAmount = submission.VatIrr,
+        };
+
+        using var request = new HttpRequestMessage(HttpMethod.Post, $"{BaseUrl}/req/api/self-tsp/sync/normal-enveloped")
+        {
+            Content = JsonContent.Create(payload),
+        };
+        request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", _options.AccessToken);
+
+        try
+        {
+            using var response = await httpClient.SendAsync(request, cancellationToken);
+            var raw = await response.Content.ReadAsStringAsync(cancellationToken);
+
+            if (!response.IsSuccessStatusCode)
+            {
+                logger.LogWarning("مودیان submission returned http {Http} for invoice {InvoiceNumber}",
+                    (int)response.StatusCode, submission.InvoiceNumber);
+                return new MoadianSubmissionResult(MoadianStatus.Failed, null);
+            }
+
+            using var doc = JsonDocument.Parse(raw);
+            var root = doc.RootElement;
+
+            // A returned reference number registers the invoice; otherwise it was accepted and is awaiting the ref.
+            var reference = root.TryGetProperty("referenceNumber", out var refEl) ? refEl.GetString()
+                          : root.TryGetProperty("uid", out var uid) ? uid.GetString()
+                          : null;
+
+            return string.IsNullOrEmpty(reference)
+                ? new MoadianSubmissionResult(MoadianStatus.Submitted, null)
+                : new MoadianSubmissionResult(MoadianStatus.Registered, reference);
+        }
+        catch (Exception ex) when (ex is HttpRequestException or JsonException or TaskCanceledException)
+        {
+            // A مودیان outage leaves the invoice submittable again on the next reconciliation tick — never failed
+            // permanently on a transient error.
+            logger.LogWarning(ex, "مودیان submission failed transiently for invoice {InvoiceNumber}", submission.InvoiceNumber);
+            return new MoadianSubmissionResult(MoadianStatus.Submitted, null);
+        }
+    }
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/NeshanGeocoder.cs

@@ -0,0 +1,87 @@
+#nullable enable
+using System.Globalization;
+using System.Text.Json;
+using Baya.Application.Contracts.Common;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IGeocoder"/> over the <b>Neshan</b> geocoding API (refinement-phase-8, 5.4) — turns a typed
+/// address into coordinates for the b9 EVV distance check. Selected by <c>Seams:Geocoding:Provider = neshan</c>.
+/// Coordinates are parsed to <see cref="decimal"/> (never float) so the downstream haversine stays exact. An
+/// address Neshan can't resolve yields null coordinates (the "saved without a map pin" state) rather than an
+/// error — the address is still saved. REQ-008's user-supplied pin reduces, but doesn't remove, the need for this.
+/// </summary>
+public sealed class NeshanGeocoder(
+    HttpClient httpClient,
+    IOptions<SeamOptions> options,
+    ILogger<NeshanGeocoder> logger) : IGeocoder
+{
+    private const string DefaultBaseUrl = "https://api.neshan.org";
+    private readonly GeocodingOptions _options = options.Value.Geocoding;
+
+    public async ValueTask<GeocodeResult> GeocodeAsync(
+        string addressText,
+        string cityName,
+        string? districtName,
+        CancellationToken cancellationToken = default)
+    {
+        var formatted = FormatAddress(addressText, cityName, districtName);
+        var baseUrl = string.IsNullOrWhiteSpace(_options.BaseUrl) ? DefaultBaseUrl : _options.BaseUrl.TrimEnd('/');
+
+        try
+        {
+            using var request = new HttpRequestMessage(HttpMethod.Get,
+                $"{baseUrl}/v1/geocoding?address={Uri.EscapeDataString(formatted)}");
+            request.Headers.Add("Api-Key", _options.ApiKey);
+
+            using var response = await httpClient.SendAsync(request, cancellationToken);
+            var raw = await response.Content.ReadAsStringAsync(cancellationToken);
+            response.EnsureSuccessStatusCode();
+
+            using var doc = JsonDocument.Parse(raw);
+            var root = doc.RootElement;
+
+            var ok = root.TryGetProperty("status", out var status)
+                     && string.Equals(status.GetString(), "OK", StringComparison.OrdinalIgnoreCase);
+
+            if (ok && root.TryGetProperty("location", out var location)
+                   && location.TryGetProperty("y", out var y)
+                   && location.TryGetProperty("x", out var x)
+                   && TryDecimal(y, out var lat) && TryDecimal(x, out var lng))
+            {
+                // Neshan: x = longitude, y = latitude.
+                return new GeocodeResult(decimal.Round(lat, 6), decimal.Round(lng, 6), formatted, _options.ResolvedConfidence);
+            }
+
+            logger.LogWarning("Neshan could not resolve an address to coordinates (status {Status})",
+                ok ? "OK-no-location" : "not-OK");
+        }
+        catch (Exception ex) when (ex is HttpRequestException or JsonException or TaskCanceledException)
+        {
+            // A geocoder outage must never block saving an address — degrade to the null-pin state.
+            logger.LogWarning(ex, "Neshan geocoding failed; saving the address without a map pin");
+        }
+
+        return new GeocodeResult(null, null, formatted, 0.2);
+    }
+
+    private static bool TryDecimal(JsonElement element, out decimal value)
+    {
+        if (element.ValueKind == JsonValueKind.Number && element.TryGetDecimal(out value))
+            return true;
+
+        if (element.ValueKind == JsonValueKind.String
+            && decimal.TryParse(element.GetString(), NumberStyles.Float, CultureInfo.InvariantCulture, out value))
+            return true;
+
+        value = 0m;
+        return false;
+    }
+
+    private static string FormatAddress(string addressText, string cityName, string? districtName) =>
+        string.Join("، ", new[] { cityName, districtName, addressText }
+            .Where(part => !string.IsNullOrWhiteSpace(part)));
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/ProviderSettlementSplitProvider.cs

@@ -0,0 +1,78 @@
+#nullable enable
+using System.Net.Http.Json;
+using System.Text.Json;
+using Baya.Application.Contracts.Payments;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="ISettlementSplitProvider"/> — the تسهیم (settlement-sharing) rail (refinement-phase-8, 6.1).
+/// Selected by <c>Seams:Payments:Provider</c> together with the PSP + webhook adapters. Registers a split-by-ratio
+/// to the beneficiaries' <b>registered IBANs</b> (nurse payout + platform commission); the acquirer credits each
+/// IBAN directly — <b>the platform never custodies funds</b>, the ledger only mirrors what legally sits at the
+/// provider/bank. Amounts are IRR <c>long</c>.
+///
+/// <para>The exact تسهیم endpoint/payload is acquirer-specific (ZarinPal/Zibal/Vandar each differ) and honours the
+/// ~100,000 IRR per-leg minimum; the request shape here is the common split-list form. A deployment confirms the
+/// concrete route + credential source (the platform SHEBA from <c>Seams:Payments:PlatformSheba</c>, each nurse
+/// SHEBA from the b3 <c>matched_national_id</c>-gated bank account) at integration.</para>
+/// </summary>
+public sealed class ProviderSettlementSplitProvider(
+    HttpClient httpClient,
+    IOptions<SeamOptions> options,
+    ILogger<ProviderSettlementSplitProvider> logger) : ISettlementSplitProvider
+{
+    private readonly PaymentsOptions _options = options.Value.Payments;
+
+    private string BaseUrl => _options.BaseUrl.TrimEnd('/');
+
+    public async ValueTask<SettlementResult> RegisterSplitAsync(long bookingId, IReadOnlyList<SettlementLeg> legs, CancellationToken cancellationToken = default)
+    {
+        if (legs.Count == 0 || legs.Sum(l => l.AmountIrr) <= 0)
+            return new SettlementResult(SettlementStatus.Failed);
+
+        var payload = new
+        {
+            booking_id = bookingId,
+            wages = legs.Select(l => new { iban = l.Sheba, amount = l.AmountIrr, description = l.Beneficiary }),
+        };
+
+        try
+        {
+            using var response = await httpClient.PostAsJsonAsync($"{BaseUrl}/settlement/split", payload, cancellationToken);
+            response.EnsureSuccessStatusCode();
+            return new SettlementResult(SettlementStatus.Registered);
+        }
+        catch (HttpRequestException ex)
+        {
+            logger.LogWarning(ex, "تسهیم split registration failed for booking {BookingId}", bookingId);
+            return new SettlementResult(SettlementStatus.Failed);
+        }
+    }
+
+    public async ValueTask<SettlementResult> GetSplitStatusAsync(long bookingId, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            using var response = await httpClient.GetAsync($"{BaseUrl}/settlement/split/{bookingId}", cancellationToken);
+            response.EnsureSuccessStatusCode();
+            var raw = await response.Content.ReadAsStringAsync(cancellationToken);
+
+            using var doc = JsonDocument.Parse(raw);
+            var status = doc.RootElement.TryGetProperty("status", out var s) ? s.GetString() : null;
+            return new SettlementResult(status?.ToLowerInvariant() switch
+            {
+                "settled" or "done" or "paid" => SettlementStatus.Settled,
+                "failed" or "rejected" => SettlementStatus.Failed,
+                _ => SettlementStatus.Registered,
+            });
+        }
+        catch (HttpRequestException ex)
+        {
+            logger.LogWarning(ex, "تسهیم split status read failed for booking {BookingId}", bookingId);
+            return new SettlementResult(SettlementStatus.Registered);
+        }
+    }
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/S3ObjectStorage.cs

@@ -0,0 +1,190 @@
+#nullable enable
+using System.Security.Cryptography;
+using System.Text;
+using Baya.Application.Contracts.Common;
+using Microsoft.Extensions.Options;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IObjectStorage"/> over an S3-compatible store — MinIO / AWS S3 / ArvanCloud
+/// (refinement-phase-8, 5.5). Selected by <c>Seams:ObjectStorage:Provider = s3</c>. Makes the b6 signed-URL
+/// document contract and the REQ-006 avatar path real (local disk + <c>file://</c> today). Server-side
+/// put/get/delete are AWS-SigV4-authenticated requests; <see cref="GetUrl"/> returns a time-limited
+/// <b>presigned GET</b> so a document is fetched directly from storage without proxying bytes through the API.
+///
+/// <para>Signing is implemented directly against SigV4 (HMAC-SHA256, all in the BCL) so no AWS SDK dependency is
+/// pulled in. Uploads use <c>UNSIGNED-PAYLOAD</c> so a blob stream is never buffered to hash it.</para>
+/// </summary>
+public sealed class S3ObjectStorage : IObjectStorage
+{
+    private const string Algorithm = "AWS4-HMAC-SHA256";
+    private const string UnsignedPayload = "UNSIGNED-PAYLOAD";
+    private const string Service = "s3";
+
+    private readonly HttpClient _httpClient;
+    private readonly ObjectStorageOptions _options;
+    private readonly Uri _serviceUri;
+
+    public S3ObjectStorage(HttpClient httpClient, IOptions<SeamOptions> options)
+    {
+        _httpClient = httpClient;
+        _options = options.Value.ObjectStorage;
+        _serviceUri = new Uri(_options.ServiceUrl.TrimEnd('/'), UriKind.Absolute);
+    }
+
+    public async ValueTask PutAsync(string key, Stream content, string contentType, CancellationToken cancellationToken = default)
+    {
+        var (uri, host, canonicalUri) = ResolveObject(key);
+        using var request = new HttpRequestMessage(HttpMethod.Put, uri)
+        {
+            Content = new StreamContent(content),
+        };
+        request.Content.Headers.TryAddWithoutValidation("Content-Type", contentType);
+        SignRequest(request, "PUT", host, canonicalUri);
+
+        using var response = await _httpClient.SendAsync(request, cancellationToken);
+        response.EnsureSuccessStatusCode();
+    }
+
+    public async ValueTask<Stream?> GetAsync(string key, CancellationToken cancellationToken = default)
+    {
+        var (uri, host, canonicalUri) = ResolveObject(key);
+        using var request = new HttpRequestMessage(HttpMethod.Get, uri);
+        SignRequest(request, "GET", host, canonicalUri);
+
+        var response = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
+        if (response.StatusCode == System.Net.HttpStatusCode.NotFound)
+        {
+            response.Dispose();
+            return null;
+        }
+
+        response.EnsureSuccessStatusCode();
+        return await response.Content.ReadAsStreamAsync(cancellationToken);
+    }
+
+    public async ValueTask DeleteAsync(string key, CancellationToken cancellationToken = default)
+    {
+        var (uri, host, canonicalUri) = ResolveObject(key);
+        using var request = new HttpRequestMessage(HttpMethod.Delete, uri);
+        SignRequest(request, "DELETE", host, canonicalUri);
+
+        using var response = await _httpClient.SendAsync(request, cancellationToken);
+        if (response.StatusCode != System.Net.HttpStatusCode.NotFound)
+            response.EnsureSuccessStatusCode();
+    }
+
+    /// <summary>A presigned GET URL valid for <c>PresignExpirySeconds</c> — the real form of the b6 signed-URL contract.</summary>
+    public string GetUrl(string key) => Presign(key, TimeSpan.FromSeconds(_options.PresignExpirySeconds));
+
+    // ---- URL / object resolution -------------------------------------------------------------------------
+
+    private (Uri Uri, string Host, string CanonicalUri) ResolveObject(string key)
+    {
+        var encodedKey = EncodeKey(key);
+        if (_options.UsePathStyle)
+        {
+            var host = _serviceUri.Authority;
+            var canonicalUri = $"/{_options.Bucket}/{encodedKey}";
+            return (new Uri($"{_serviceUri.Scheme}://{host}{canonicalUri}"), host, canonicalUri);
+        }
+        else
+        {
+            var host = $"{_options.Bucket}.{_serviceUri.Authority}";
+            var canonicalUri = $"/{encodedKey}";
+            return (new Uri($"{_serviceUri.Scheme}://{host}{canonicalUri}"), host, canonicalUri);
+        }
+    }
+
+    // ---- SigV4: authenticated request (header auth) ------------------------------------------------------
+
+    private void SignRequest(HttpRequestMessage request, string method, string host, string canonicalUri)
+    {
+        var now = DateTime.UtcNow;
+        var amzDate = now.ToString("yyyyMMddTHHmmssZ");
+        var dateStamp = now.ToString("yyyyMMdd");
+        var scope = $"{dateStamp}/{_options.Region}/{Service}/aws4_request";
+
+        var canonicalHeaders = $"host:{host}\nx-amz-content-sha256:{UnsignedPayload}\nx-amz-date:{amzDate}\n";
+        const string signedHeaders = "host;x-amz-content-sha256;x-amz-date";
+
+        var canonicalRequest = string.Join('\n',
+            method, canonicalUri, string.Empty, canonicalHeaders, signedHeaders, UnsignedPayload);
+        var stringToSign = string.Join('\n', Algorithm, amzDate, scope, Hex(Sha256(canonicalRequest)));
+        var signature = Hex(Hmac(SigningKey(dateStamp), stringToSign));
+
+        request.Headers.TryAddWithoutValidation("x-amz-date", amzDate);
+        request.Headers.TryAddWithoutValidation("x-amz-content-sha256", UnsignedPayload);
+        request.Headers.TryAddWithoutValidation("Authorization",
+            $"{Algorithm} Credential={_options.AccessKey}/{scope}, SignedHeaders={signedHeaders}, Signature={signature}");
+    }
+
+    // ---- SigV4: presigned URL (query auth) ---------------------------------------------------------------
+
+    private string Presign(string key, TimeSpan expiry)
+    {
+        var (uri, host, canonicalUri) = ResolveObject(key);
+        var now = DateTime.UtcNow;
+        var amzDate = now.ToString("yyyyMMddTHHmmssZ");
+        var dateStamp = now.ToString("yyyyMMdd");
+        var scope = $"{dateStamp}/{_options.Region}/{Service}/aws4_request";
+
+        // Query keys must be sorted; each value URL-encoded (RFC3986). host is the only signed header.
+        var query = new SortedDictionary<string, string>(StringComparer.Ordinal)
+        {
+            ["X-Amz-Algorithm"] = Algorithm,
+            ["X-Amz-Credential"] = $"{_options.AccessKey}/{scope}",
+            ["X-Amz-Date"] = amzDate,
+            ["X-Amz-Expires"] = ((int)expiry.TotalSeconds).ToString(),
+            ["X-Amz-SignedHeaders"] = "host",
+        };
+        var canonicalQuery = string.Join('&', query.Select(kvp => $"{RfcEncode(kvp.Key)}={RfcEncode(kvp.Value)}"));
+
+        var canonicalHeaders = $"host:{host}\n";
+        var canonicalRequest = string.Join('\n',
+            "GET", canonicalUri, canonicalQuery, canonicalHeaders, "host", UnsignedPayload);
+        var stringToSign = string.Join('\n', Algorithm, amzDate, scope, Hex(Sha256(canonicalRequest)));
+        var signature = Hex(Hmac(SigningKey(dateStamp), stringToSign));
+
+        return $"{uri.Scheme}://{host}{canonicalUri}?{canonicalQuery}&X-Amz-Signature={signature}";
+    }
+
+    // ---- crypto primitives -------------------------------------------------------------------------------
+
+    private byte[] SigningKey(string dateStamp)
+    {
+        var kDate = Hmac(Encoding.UTF8.GetBytes($"AWS4{_options.SecretKey}"), dateStamp);
+        var kRegion = Hmac(kDate, _options.Region);
+        var kService = Hmac(kRegion, Service);
+        return Hmac(kService, "aws4_request");
+    }
+
+    private static byte[] Hmac(byte[] key, string data) => HMACSHA256.HashData(key, Encoding.UTF8.GetBytes(data));
+    private static byte[] Sha256(string data) => SHA256.HashData(Encoding.UTF8.GetBytes(data));
+    private static string Hex(byte[] bytes) => Convert.ToHexStringLower(bytes);
+
+    // Encode an object key preserving '/' as a path separator (each segment RFC3986-encoded).
+    private static string EncodeKey(string key)
+    {
+        var normalized = key.Replace('\\', '/').TrimStart('/');
+        return string.Join('/', normalized
+            .Split('/', StringSplitOptions.RemoveEmptyEntries)
+            .Where(s => s != "." && s != "..")
+            .Select(RfcEncode));
+    }
+
+    // RFC 3986 unreserved set — AWS canonicalization encodes everything else.
+    private static string RfcEncode(string value)
+    {
+        const string unreserved = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_.~";
+        var sb = new StringBuilder(value.Length);
+        foreach (var b in Encoding.UTF8.GetBytes(value))
+        {
+            var c = (char)b;
+            if (unreserved.IndexOf(c) >= 0) sb.Append(c);
+            else sb.Append('%').Append(b.ToString("X2"));
+        }
+        return sb.ToString();
+    }
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/SnappPayBnplProvider.cs

@@ -0,0 +1,201 @@
+#nullable enable
+using System.Net.Http.Headers;
+using System.Net.Http.Json;
+using System.Text.Json;
+using Baya.Application.Contracts.Payments;
+using Baya.Domain.Entities.Bnpl;
+using Microsoft.Extensions.Logging;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IBnplProvider"/> for <b>SnappPay</b> (refinement-phase-8, 6.2) — the canonical superset the
+/// seam was designed around: OAuth token → <c>offer/eligible</c> → <c>payment/token|verify|settle|revert|
+/// cancel|update|status</c>. Resolved for <c>provider_code = snapppay</c> by <see cref="Real.ConfiguredBnplProviderResolver"/>.
+/// Amounts cross the wire in the provider's currency (converted only at this boundary via the base's
+/// <c>ToWire</c>/<c>FromWire</c>); the settle reads the <b>merchant commission from the actual response</b>, never
+/// hardcoded, and the <c>settled_at</c> is whatever the provider reports (nullable — never assumed instant).
+/// Money always flows <c>customer ↔ provider ↔ Balinyaar</c>.
+///
+/// <para><b>Warn:</b> this is the Iranian SnappPay provider-financed BNPL, <i>not</i> the unrelated Canadian
+/// <c>SnapPayInc/open-api-java-sdk</c>. Client id/secret come from the encrypted <c>payment_gateways.config_json</c>
+/// in a full deployment; the base URL + non-secret facts are in <c>Seams:Bnpl:Providers[snapppay]</c>.</para>
+/// </summary>
+public sealed class SnappPayBnplProvider : HttpBnplProviderBase, IBnplProvider
+{
+    private const string DefaultBaseUrl = "https://fms-gateway-staging.apps.public.teh-1.snappcloud.io";
+    private readonly BnplProviderConnection _connection;
+    private readonly ILogger _logger;
+
+    private string? _token;
+    private DateTime _tokenExpiresAt;
+    private readonly SemaphoreSlim _tokenGate = new(1, 1);
+
+    public SnappPayBnplProvider(
+        HttpClient httpClient,
+        ICurrencyNormalizer currency,
+        BnplProviderConnection connection,
+        string wireCurrency,
+        ILogger logger)
+        : base(httpClient, currency, wireCurrency)
+    {
+        _connection = connection;
+        _logger = logger;
+    }
+
+    private string BaseUrl => string.IsNullOrWhiteSpace(_connection.BaseUrl) ? DefaultBaseUrl : _connection.BaseUrl.TrimEnd('/');
+
+    public async ValueTask<BnplEligibilityResult> CheckEligibilityAsync(string customerMobile, long orderAmountIrr, CancellationToken cancellationToken = default)
+    {
+        var body = new { amount = ToWire(orderAmountIrr), mobile = customerMobile };
+        using var doc = await PostAsync("api/online/offer/v1/eligible", body, cancellationToken);
+
+        var eligible = doc?.RootElement.TryGetProperty("successful", out var s) == true && s.ValueKind == JsonValueKind.True;
+        long? ceiling = null;
+        if (doc?.RootElement.TryGetProperty("response", out var resp) == true
+            && resp.TryGetProperty("titleAmount", out var ceilingEl) && ceilingEl.TryGetInt64(out var c))
+            ceiling = FromWire(c);
+
+        return new BnplEligibilityResult(
+            eligible ? BnplEligibilityStatus.Eligible : BnplEligibilityStatus.NotEligible,
+            InstallmentCount: 4, CreditCeilingIrr: ceiling,
+            PlanSummary: "4 interest-free installments, provider-financed (SnappPay).");
+    }
+
+    public async ValueTask<BnplTokenResult> CreatePaymentTokenAsync(string customerMobile, long orderAmountIrr, string idempotencyKey, CancellationToken cancellationToken = default)
+    {
+        var body = new
+        {
+            amount = ToWire(orderAmountIrr),
+            mobile = customerMobile,
+            paymentMethodTypeDto = "INSTALLMENT",
+            transactionId = idempotencyKey,
+            returnURL = string.Empty,
+        };
+        using var doc = await PostAsync("api/online/payment/v1/token", body, cancellationToken);
+
+        var response = doc?.RootElement.TryGetProperty("response", out var r) == true ? r : default;
+        var token = response.ValueKind == JsonValueKind.Object && response.TryGetProperty("paymentToken", out var t)
+            ? t.GetString() ?? string.Empty
+            : string.Empty;
+        var redirect = response.ValueKind == JsonValueKind.Object && response.TryGetProperty("paymentPageUrl", out var u)
+            ? u.GetString() ?? string.Empty
+            : string.Empty;
+
+        return string.IsNullOrEmpty(token)
+            ? new BnplTokenResult(PaymentProviderStatus.Failed, string.Empty, string.Empty, null)
+            : new BnplTokenResult(PaymentProviderStatus.Succeeded, token, redirect, idempotencyKey);
+    }
+
+    public async ValueTask<BnplVerifyResult> VerifyAsync(string externalPaymentToken, long expectedOrderAmountIrr, CancellationToken cancellationToken = default)
+    {
+        using var doc = await PostAsync("api/online/payment/v1/verify", new { paymentToken = externalPaymentToken }, cancellationToken);
+        var ok = doc?.RootElement.TryGetProperty("successful", out var s) == true && s.ValueKind == JsonValueKind.True;
+        return new BnplVerifyResult(ok ? PaymentProviderStatus.Succeeded : PaymentProviderStatus.Failed, expectedOrderAmountIrr, externalPaymentToken);
+    }
+
+    public async ValueTask<BnplSettleResult> SettleAsync(string externalPaymentToken, long orderAmountIrr, string idempotencyKey, CancellationToken cancellationToken = default)
+    {
+        using var doc = await PostAsync("api/online/payment/v1/settle", new { paymentToken = externalPaymentToken }, cancellationToken);
+        var ok = doc?.RootElement.TryGetProperty("successful", out var s) == true && s.ValueKind == JsonValueKind.True;
+        if (!ok)
+            return new BnplSettleResult(PaymentProviderStatus.Failed, 0, 0, null, externalPaymentToken);
+
+        var response = doc!.RootElement.GetProperty("response");
+        // The merchant discount is read from the settlement response — never hardcoded.
+        var commissionWire = response.TryGetProperty("feeAmount", out var fee) && fee.TryGetInt64(out var f) ? f : 0;
+        var settledWire = response.TryGetProperty("settleAmount", out var st) && st.TryGetInt64(out var stv)
+            ? stv
+            : ToWire(orderAmountIrr) - commissionWire;
+
+        return new BnplSettleResult(
+            PaymentProviderStatus.Succeeded,
+            SettledAmountIrr: FromWire(settledWire),
+            BnplCommissionIrr: FromWire(commissionWire),
+            SettledAt: DateTime.UtcNow,
+            ExternalTransactionId: externalPaymentToken);
+    }
+
+    public async ValueTask<BnplStatusResult> GetStatusAsync(string externalPaymentToken, CancellationToken cancellationToken = default)
+    {
+        using var doc = await PostAsync("api/online/payment/v1/status", new { paymentToken = externalPaymentToken }, cancellationToken);
+        var status = doc?.RootElement.TryGetProperty("response", out var r) == true && r.TryGetProperty("status", out var st)
+            ? st.GetString() ?? "unknown"
+            : "unknown";
+        return new BnplStatusResult(status);
+    }
+
+    public ValueTask<BnplRevertResult> CancelAsync(string externalPaymentToken, string idempotencyKey, CancellationToken cancellationToken = default)
+        => ReverseAsync("api/online/payment/v1/cancel", new { paymentToken = externalPaymentToken }, cancellationToken);
+
+    public ValueTask<BnplRevertResult> RevertAsync(string providerOrderReference, long amountIrr, string idempotencyKey, CancellationToken cancellationToken = default)
+        => ReverseAsync("api/online/payment/v1/revert", new { paymentToken = providerOrderReference }, cancellationToken);
+
+    public ValueTask<BnplRevertResult> UpdateAsync(string providerOrderReference, long newAmountIrr, string idempotencyKey, CancellationToken cancellationToken = default)
+        => ReverseAsync("api/online/payment/v1/update", new { paymentToken = providerOrderReference, amount = ToWire(newAmountIrr) }, cancellationToken);
+
+    private async ValueTask<BnplRevertResult> ReverseAsync(string path, object body, CancellationToken cancellationToken)
+    {
+        using var doc = await PostAsync(path, body, cancellationToken);
+        var ok = doc?.RootElement.TryGetProperty("successful", out var s) == true && s.ValueKind == JsonValueKind.True;
+        if (!ok)
+            return new BnplRevertResult(PaymentProviderStatus.Failed, null, null);
+
+        long? reversedCommission = null;
+        if (doc!.RootElement.TryGetProperty("response", out var r)
+            && r.TryGetProperty("reversedFeeAmount", out var rf) && rf.TryGetInt64(out var rfv))
+            reversedCommission = FromWire(rfv);
+
+        var reference = doc.RootElement.TryGetProperty("response", out var rr) && rr.TryGetProperty("trackingCode", out var tc)
+            ? tc.GetString()
+            : null;
+
+        return new BnplRevertResult(PaymentProviderStatus.Succeeded, reference, reversedCommission);
+    }
+
+    private async ValueTask<JsonDocument?> PostAsync(string path, object body, CancellationToken cancellationToken)
+    {
+        using var request = new HttpRequestMessage(HttpMethod.Post, $"{BaseUrl}/{path}")
+        {
+            Content = JsonContent.Create(body),
+        };
+        request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", await GetTokenAsync(cancellationToken));
+
+        using var response = await Http.SendAsync(request, cancellationToken);
+        var raw = await response.Content.ReadAsStringAsync(cancellationToken);
+        if (!response.IsSuccessStatusCode)
+        {
+            _logger.LogWarning("SnappPay {Path} returned http {Http}", path, (int)response.StatusCode);
+            return null;
+        }
+
+        return JsonDocument.Parse(raw);
+    }
+
+    private async ValueTask<string> GetTokenAsync(CancellationToken cancellationToken)
+    {
+        if (_token is not null && DateTime.UtcNow < _tokenExpiresAt)
+            return _token;
+
+        await _tokenGate.WaitAsync(cancellationToken);
+        try
+        {
+            if (_token is not null && DateTime.UtcNow < _tokenExpiresAt)
+                return _token;
+
+            using var response = await Http.PostAsJsonAsync($"{BaseUrl}/api/online/v1/oauth/token",
+                new { grant_type = "client_credentials", scope = "online-merchant" }, cancellationToken);
+            response.EnsureSuccessStatusCode();
+            using var doc = JsonDocument.Parse(await response.Content.ReadAsStringAsync(cancellationToken));
+            var root = doc.RootElement;
+            _token = root.GetProperty("access_token").GetString();
+            var ttl = root.TryGetProperty("expires_in", out var exp) && exp.TryGetInt32(out var seconds) ? seconds : 3600;
+            _tokenExpiresAt = DateTime.UtcNow.AddSeconds(Math.Max(60, ttl - 60));
+            return _token!;
+        }
+        finally
+        {
+            _tokenGate.Release();
+        }
+    }
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/Real/ZarinPalPaymentProvider.cs

@@ -0,0 +1,107 @@
+#nullable enable
+using System.Net.Http.Json;
+using System.Text.Json;
+using Baya.Application.Contracts.Payments;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace Baya.Infrastructure.CrossCutting.Seams.Real;
+
+/// <summary>
+/// Real <see cref="IPaymentProvider"/> over the <b>ZarinPal</b> IPG (refinement-phase-8, 6.1). Selected by
+/// <c>Seams:Payments:Provider = zarinpal</c>. Opens a v4 payment session (returns the Shaparak-routed redirect +
+/// the <c>authority</c> as the gateway reference), performs the <b>mandatory server-side verify</b> (never trusts
+/// a callback alone — the amount is re-checked against the gateway), and reverses a captured payment.
+///
+/// <para>Every amount crossing this seam is IRR <c>long</c>; ZarinPal v4 amounts are Rial, so no conversion
+/// happens here. The merchant id defaults from <c>Seams:Payments:MerchantId</c>; a full multi-gateway deployment
+/// resolves it per gateway row from the encrypted <c>payment_gateways.config_json</c> via a provider factory —
+/// the seam contract is identical either way.</para>
+/// </summary>
+public sealed class ZarinPalPaymentProvider(
+    HttpClient httpClient,
+    IOptions<SeamOptions> options,
+    ILogger<ZarinPalPaymentProvider> logger) : IPaymentProvider
+{
+    private const string DefaultBaseUrl = "https://payment.zarinpal.com";
+    private readonly PaymentsOptions _options = options.Value.Payments;
+
+    private string BaseUrl => string.IsNullOrWhiteSpace(_options.BaseUrl) ? DefaultBaseUrl : _options.BaseUrl.TrimEnd('/');
+
+    public async ValueTask<PaymentInitResult> InitPaymentAsync(long bookingRequestId, long amountIrr, string idempotencyKey, CancellationToken cancellationToken = default)
+    {
+        var payload = new
+        {
+            merchant_id = _options.MerchantId,
+            amount = amountIrr,
+            callback_url = _options.CallbackUrl,
+            description = $"Balinyaar booking request {bookingRequestId}",
+            metadata = new { idempotency_key = idempotencyKey },
+        };
+
+        using var response = await httpClient.PostAsJsonAsync($"{BaseUrl}/pg/v4/payment/request.json", payload, cancellationToken);
+        var raw = await response.Content.ReadAsStringAsync(cancellationToken);
+        response.EnsureSuccessStatusCode();
+
+        using var doc = JsonDocument.Parse(raw);
+        var authority = doc.RootElement.TryGetProperty("data", out var data)
+                        && data.TryGetProperty("authority", out var auth)
+            ? auth.GetString()
+            : null;
+
+        if (string.IsNullOrEmpty(authority))
+            throw new InvalidOperationException("ZarinPal did not return a payment authority.");
+
+        return new PaymentInitResult(
+            RedirectUrl: $"{BaseUrl}/pg/StartPay/{authority}",
+            GatewayReferenceCode: authority);
+    }
+
+    public async ValueTask<PaymentVerifyResult> VerifyAsync(string gatewayReferenceCode, long expectedAmountIrr, CancellationToken cancellationToken = default)
+    {
+        var payload = new { merchant_id = _options.MerchantId, amount = expectedAmountIrr, authority = gatewayReferenceCode };
+
+        using var response = await httpClient.PostAsJsonAsync($"{BaseUrl}/pg/v4/payment/verify.json", payload, cancellationToken);
+        var raw = await response.Content.ReadAsStringAsync(cancellationToken);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            logger.LogWarning("ZarinPal verify returned http {Http} for authority {Authority}", (int)response.StatusCode, gatewayReferenceCode);
+            return new PaymentVerifyResult(PaymentProviderStatus.Failed, 0);
+        }
+
+        using var doc = JsonDocument.Parse(raw);
+        // v4 verify: data.code 100 = paid, 101 = already verified (both confirm). Anything else is a non-confirm.
+        var code = doc.RootElement.TryGetProperty("data", out var data) && data.TryGetProperty("code", out var c)
+            ? c.GetInt32()
+            : -1;
+
+        return code is 100 or 101
+            ? new PaymentVerifyResult(PaymentProviderStatus.Succeeded, expectedAmountIrr)
+            : new PaymentVerifyResult(PaymentProviderStatus.Failed, 0);
+    }
+
+    public async ValueTask<PaymentRefundResult> RefundAsync(string gatewayReferenceCode, long amountIrr, string idempotencyKey, CancellationToken cancellationToken = default)
+    {
+        // ZarinPal reversals go through the authorized refund API; the idempotency key is carried so a retried
+        // refund is a no-op at the gateway rather than a double reversal.
+        var payload = new { merchant_id = _options.MerchantId, authority = gatewayReferenceCode, amount = amountIrr, idempotency_key = idempotencyKey };
+
+        using var response = await httpClient.PostAsJsonAsync($"{BaseUrl}/pg/v4/payment/refund.json", payload, cancellationToken);
+        var raw = await response.Content.ReadAsStringAsync(cancellationToken);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            logger.LogWarning("ZarinPal refund returned http {Http} for authority {Authority}", (int)response.StatusCode, gatewayReferenceCode);
+            return new PaymentRefundResult(PaymentProviderStatus.Failed, null);
+        }
+
+        using var doc = JsonDocument.Parse(raw);
+        string? refundRef = doc.RootElement.TryGetProperty("data", out var data)
+                            && data.TryGetProperty("ref_id", out var refId)
+            ? refId.ToString()
+            : null;
+
+        return new PaymentRefundResult(PaymentProviderStatus.Succeeded, refundRef);
+    }
+}

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/SeamOptions.cs

@@ -3,12 +3,19 @@ namespace Baya.Infrastructure.CrossCutting.Seams;
 /// <summary>
 /// Options bound from the <c>Seams</c> configuration section. The mock seams read non-secret defaults
 /// from here; production keys/paths come from environment variables or user-secrets, never committed.
+///
+/// <para><b>Provider selection (refinement-phase-8).</b> Each vendor rail carries a <c>Provider</c> selector
+/// (default = the mock, so an unconfigured environment behaves exactly as before). Setting it to a real
+/// provider token (e.g. <c>Seams:Sms:Provider = kavenegar</c>) swaps in the real HTTP adapter behind the same
+/// contract — handlers never change. This makes a <b>partial rollout</b> the normal case: real SMS + real
+/// geocoder while payments stay mocked in a pre-launch environment is just three config keys.</para>
 /// </summary>
 public sealed class SeamOptions
 {
     public const string SectionName = "Seams";
 
     public FieldEncryptionOptions FieldEncryption { get; set; } = new();
+    public SmsOptions Sms { get; set; } = new();
     public ObjectStorageOptions ObjectStorage { get; set; } = new();
     public BankOwnershipOptions BankOwnership { get; set; } = new();
     public GeocodingOptions Geocoding { get; set; } = new();
@@ -22,6 +29,85 @@ public sealed class SeamOptions
     public BankTransferOptions BankTransfer { get; set; } = new();
     public ReviewModerationOptions ReviewModeration { get; set; } = new();
     public LicenseVerificationOptions LicenseVerification { get; set; } = new();
+    public FinnotechOptions Finnotech { get; set; } = new();
+}
+
+/// <summary>
+/// Shared credentials for the Finnotech-class KYC bridge that fronts three trust rails — شاهکار
+/// (<c>IShahkarVerifier</c>), e-KYC (<c>IIdentityKycProvider</c>), and استعلام شبا
+/// (<c>IBankAccountOwnershipVerifier</c>). Each seam opts in with its own <c>Provider = finnotech</c> selector,
+/// but they authenticate against the same tenant, so the connection facts live here once. All values are
+/// secrets — user-secrets / environment, never committed.
+/// </summary>
+public sealed class FinnotechOptions
+{
+    /// <summary>API host (defaults to Finnotech's public sandbox/production host at the adapter).</summary>
+    public string BaseUrl { get; set; } = string.Empty;
+
+    /// <summary>The tenant's client id (<c>NID</c>) — the Finnotech app identifier.</summary>
+    public string ClientId { get; set; } = string.Empty;
+
+    /// <summary>A pre-issued bearer access token (client-credential token exchange is out of scope for the MVP
+    /// adapter; a deployment supplies a current token, refreshed out-of-band).</summary>
+    public string AccessToken { get; set; } = string.Empty;
+}
+
+/// <summary>Stable provider tokens for the <c>Provider</c> selectors, so a typo fails closed to the mock.</summary>
+public static class SeamProviders
+{
+    public const string Mock = "mock";
+    public const string LocalDisk = "local";
+
+    // SMS gateways
+    public const string Kavenegar = "kavenegar";
+    public const string SmsIr = "smsir";
+    public const string Ghasedak = "ghasedak";
+
+    // Object storage
+    public const string S3 = "s3";
+
+    // Trust / identity (a Finnotech-class KYC bridge fronts Shahkar / e-KYC / استعلام شبا)
+    public const string Finnotech = "finnotech";
+
+    // Geocoding
+    public const string Neshan = "neshan";
+
+    // Card PSP acquirers
+    public const string ZarinPal = "zarinpal";
+    public const string Sadad = "sadad";
+    public const string Vandar = "vandar";
+    public const string Jibit = "jibit";
+
+    // BNPL
+    public const string SnappPay = "snapppay";
+    public const string Digipay = "digipay";
+
+    // e-invoicing
+    public const string Moadian = "moadian";
+}
+
+/// <summary>
+/// The outbound SMS rail (<c>ISmsSender</c>). <see cref="Provider"/> = <c>mock</c> logs the OTP (the b2
+/// <c>LoggingSmsSender</c>); set it to <c>kavenegar</c> / <c>smsir</c> / <c>ghasedak</c> to deliver over a real
+/// Iranian gateway. <b>refinement-phase-8:</b> when a real provider is selected the Development OTP-in-logs/echo
+/// bridge is disabled — the OTP must never be logged once real SMS ships.
+/// </summary>
+public sealed class SmsOptions
+{
+    /// <summary><c>mock</c> (default) | <c>kavenegar</c> | <c>smsir</c> | <c>ghasedak</c>.</summary>
+    public string Provider { get; set; } = SeamProviders.Mock;
+
+    /// <summary>Gateway API key / token (secret — user-secrets or environment, never committed).</summary>
+    public string ApiKey { get; set; } = string.Empty;
+
+    /// <summary>The registered sender line (used by <c>SendAsync</c> free-form messages and non-template sends).</summary>
+    public string SenderLine { get; set; } = string.Empty;
+
+    /// <summary>Override the gateway base URL (defaults to the provider's public API host).</summary>
+    public string BaseUrl { get; set; } = string.Empty;
+
+    /// <summary>The approved OTP template/pattern name the gateway sends the code through (verify-lookup APIs).</summary>
+    public string OtpTemplate { get; set; } = string.Empty;
 }
 
 /// <summary>
@@ -60,6 +146,19 @@ public sealed class ReviewModerationOptions
 /// </summary>
 public sealed class BankTransferOptions
 {
+    /// <summary><c>mock</c> (default) | <c>jibit</c> | <c>vandar</c> | <c>sadad</c> — the payout transferor.</summary>
+    public string Provider { get; set; } = SeamProviders.Mock;
+
+    /// <summary>Transferor API base URL.</summary>
+    public string BaseUrl { get; set; } = string.Empty;
+
+    /// <summary>Transferor API key / bearer token (secret).</summary>
+    public string ApiKey { get; set; } = string.Empty;
+
+    /// <summary>The platform's registered <b>source settlement account</b> the batch debits (IBAN/account id the
+    /// transferor recognises). Every PAYA/SATNA transfer originates here.</summary>
+    public string SourceSettlementAccount { get; set; } = string.Empty;
+
     /// <summary>When true, every payout instruction is rejected so the whole-batch-failure path is testable.</summary>
     public bool ForceFailure { get; set; }
 
@@ -86,6 +185,19 @@ public sealed class CurrencyOptions
 /// </summary>
 public sealed class MoadianOptions
 {
+    /// <summary><c>mock</c> (default) | <c>moadian</c> — the real سامانه مودیان submission adapter.</summary>
+    public string Provider { get; set; } = SeamProviders.Mock;
+
+    /// <summary>مودیان API base URL (the tax-authority endpoint).</summary>
+    public string BaseUrl { get; set; } = string.Empty;
+
+    /// <summary>The platform's مودیان memory/economic id (<c>memoryId</c> / شناسه یکتای حافظه مالیاتی).</summary>
+    public string MemoryId { get; set; } = string.Empty;
+
+    /// <summary>A pre-issued bearer token for the مودیان API (the signing-certificate token exchange is a
+    /// deploy-time concern; a deployment supplies a current token). Secret.</summary>
+    public string AccessToken { get; set; } = string.Empty;
+
     /// <summary>When true, a submission returns <c>registered</c> + a deterministic fake 22-digit reference.</summary>
     public bool ForceRegistered { get; set; }
 }
@@ -97,6 +209,19 @@ public sealed class MoadianOptions
 /// </summary>
 public sealed class BnplOptions
 {
+    /// <summary><c>mock</c> (default) | <c>real</c> — when <c>real</c>, <c>IBnplProviderResolver</c> maps each
+    /// <c>provider_code</c> to its concrete adapter (SnappPay / Digipay) instead of the one mock.</summary>
+    public string Provider { get; set; } = SeamProviders.Mock;
+
+    /// <summary>Per-provider connection facts, keyed by <c>provider_code</c> (<c>snapppay</c>/<c>digipay</c>).
+    /// Credentials proper (client id/secret) come from the encrypted <c>payment_gateways.config_json</c> in a
+    /// full deployment; the base URL + non-secret facts can be defaulted here.</summary>
+    public Dictionary<string, BnplProviderConnection> Providers { get; set; } = new(StringComparer.OrdinalIgnoreCase);
+
+    /// <summary>The currency the BNPL providers speak on the wire (<c>TOMAN</c> or <c>IRR</c>); conversion to IRR
+    /// happens only at the adapter boundary via <c>ICurrencyNormalizer</c>. SnappPay/Digipay speak Rial.</summary>
+    public string WireCurrency { get; set; } = "IRR";
+
     /// <summary>When true, token/revert/update/cancel all fail so the provider-declined paths are testable.</summary>
     public bool ForceFailure { get; set; }
 
@@ -119,6 +244,17 @@ public sealed class BnplOptions
     public string NotEligibleMobile { get; set; } = "09120000099";
 }
 
+/// <summary>Non-secret connection facts for one BNPL provider (base URL, sandbox flag, merchant handle). The
+/// secret client id/secret live in the encrypted <c>payment_gateways.config_json</c>; a real adapter reads both.</summary>
+public sealed class BnplProviderConnection
+{
+    public string BaseUrl { get; set; } = string.Empty;
+    public bool Sandbox { get; set; }
+
+    /// <summary>Optional non-secret merchant/terminal identifier the provider expects on requests.</summary>
+    public string MerchantId { get; set; } = string.Empty;
+}
+
 /// <summary>
 /// Tunes the b10 money-path mocks (PSP acquirer, تسهیم split, webhook verifier). The real adapters ignore
 /// these — production merchant ids / signing keys come from <c>payment_gateways.config_json</c> and secrets,
@@ -126,7 +262,30 @@ public sealed class BnplOptions
 /// </summary>
 public sealed class PaymentsOptions
 {
-    /// <summary>The platform's own registered IBAN (SHEBA) the mock split credits the commission leg to.</summary>
+    /// <summary><c>mock</c> (default) | <c>zarinpal</c> | <c>sadad</c> | <c>vandar</c> | <c>jibit</c> — the card
+    /// acquirer <c>IPaymentProvider</c> + <c>ISettlementSplitProvider</c> + <c>IWebhookVerifier</c> swap together.</summary>
+    public string Provider { get; set; } = SeamProviders.Mock;
+
+    /// <summary>Acquirer IPG base URL (the payment-request / verify / refund host).</summary>
+    public string BaseUrl { get; set; } = string.Empty;
+
+    /// <summary>The acquirer merchant id / terminal (non-secret handle). Production reads it from the encrypted
+    /// <c>payment_gateways.config_json</c>; this default enables a single-merchant deployment without the DB row.</summary>
+    public string MerchantId { get; set; } = string.Empty;
+
+    /// <summary>Where the acquirer sends the customer back after the hosted payment page (the return deep-link the
+    /// adapter passes as the callback URL when opening the IPG session).</summary>
+    public string CallbackUrl { get; set; } = string.Empty;
+
+    /// <summary>Per-provider webhook signing secret (HMAC key), keyed by <c>provider_code</c>. The real
+    /// <c>IWebhookVerifier</c> verifies the raw callback body against this; a provider with no signature falls back
+    /// to the mandatory server-side <c>verify</c> re-check.</summary>
+    public Dictionary<string, string> WebhookSigningSecrets { get; set; } = new(StringComparer.OrdinalIgnoreCase);
+
+    /// <summary>The header the provider carries its signature in (default <c>X-Signature</c>).</summary>
+    public string SignatureHeader { get; set; } = "X-Signature";
+
+    /// <summary>The platform's own registered IBAN (SHEBA) the split credits the commission leg to.</summary>
     public string PlatformSheba { get; set; } = "IR000000000000000000000001";
 
     /// <summary>A callback whose raw body contains this marker is treated as an <b>invalid signature</b> by the
@@ -156,6 +315,9 @@ public sealed class PaymentCaptureOptions
 /// </summary>
 public sealed class ShahkarOptions
 {
+    /// <summary><c>mock</c> (default) | <c>finnotech</c> — the real شاهکار bridge (shares <c>Seams:Finnotech</c> creds).</summary>
+    public string Provider { get; set; } = SeamProviders.Mock;
+
     /// <summary>The designated test phone that returns the shared-SIM failure state.</summary>
     public string SharedSimPhone { get; set; } = "09120000000";
 
@@ -170,6 +332,9 @@ public sealed class ShahkarOptions
 /// </summary>
 public sealed class IdentityKycOptions
 {
+    /// <summary><c>mock</c> (default) | <c>finnotech</c> — the real e-KYC bridge (shares <c>Seams:Finnotech</c> creds).</summary>
+    public string Provider { get; set; } = SeamProviders.Mock;
+
     /// <summary>The designated test national id that fails identity KYC.</summary>
     public string FailNationalId { get; set; } = "0000000000";
 
@@ -186,6 +351,15 @@ public sealed class IdentityKycOptions
 /// </summary>
 public sealed class GeocodingOptions
 {
+    /// <summary><c>mock</c> (default) | <c>neshan</c> — the real Neshan geocoding adapter.</summary>
+    public string Provider { get; set; } = SeamProviders.Mock;
+
+    /// <summary>Neshan API key (secret). The real geocoder sends it as the <c>Api-Key</c> header.</summary>
+    public string ApiKey { get; set; } = string.Empty;
+
+    /// <summary>Neshan API base URL (defaults to the public host at the adapter).</summary>
+    public string BaseUrl { get; set; } = string.Empty;
+
     /// <summary>When true, every geocode returns null coordinates with low confidence.</summary>
     public bool ReturnNullCoordinates { get; set; }
 
@@ -203,6 +377,9 @@ public sealed class GeocodingOptions
 /// </summary>
 public sealed class BankOwnershipOptions
 {
+    /// <summary><c>mock</c> (default) | <c>finnotech</c> — the real استعلام شبا bridge (shares <c>Seams:Finnotech</c> creds).</summary>
+    public string Provider { get; set; } = SeamProviders.Mock;
+
     /// <summary>The designated test IBAN that returns <c>matched_national_id = false</c>.</summary>
     public string MismatchIban { get; set; } = "IR000000000000000000000000";
 
@@ -224,6 +401,31 @@ public sealed class FieldEncryptionOptions
 
 public sealed class ObjectStorageOptions
 {
+    /// <summary><c>local</c> (default) | <c>s3</c> — S3/MinIO/ArvanCloud object storage with presigned PUT/GET.</summary>
+    public string Provider { get; set; } = SeamProviders.LocalDisk;
+
     /// <summary>Filesystem root the local-disk mock writes blobs under.</summary>
     public string RootPath { get; set; } = string.Empty;
+
+    /// <summary>S3-compatible endpoint host, e.g. <c>https://s3.ir-thr-at1.arvanstorage.ir</c> or a MinIO URL.</summary>
+    public string ServiceUrl { get; set; } = string.Empty;
+
+    /// <summary>The bucket blobs are stored in.</summary>
+    public string Bucket { get; set; } = string.Empty;
+
+    /// <summary>The S3 region (SigV4 credential scope; MinIO/ArvanCloud commonly use <c>us-east-1</c> or their own).</summary>
+    public string Region { get; set; } = "us-east-1";
+
+    /// <summary>S3 access key id (secret).</summary>
+    public string AccessKey { get; set; } = string.Empty;
+
+    /// <summary>S3 secret access key (secret).</summary>
+    public string SecretKey { get; set; } = string.Empty;
+
+    /// <summary>Use path-style addressing (<c>{endpoint}/{bucket}/{key}</c>) — required by MinIO/ArvanCloud; AWS
+    /// proper uses virtual-host style. Default true (path-style) since Iranian S3 endpoints expect it.</summary>
+    public bool UsePathStyle { get; set; } = true;
+
+    /// <summary>How long a presigned GET/PUT URL stays valid (seconds).</summary>
+    public int PresignExpirySeconds { get; set; } = 900;
 }

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/ServiceConfiguration/DevelopmentSeamExtensions.cs

@@ -28,4 +28,16 @@ public static class DevelopmentSeamExtensions
 
         return services;
     }
+
+    /// <summary>
+    /// Development/Testing-only re-registration of the real <see cref="MockPaymentCaptureSimulator"/> over the
+    /// production <see cref="DisabledPaymentCaptureSimulator"/> (refinement-phase-8, 6.4). The <c>bookings/convert</c>
+    /// simulator path is a dev/test affordance — production converts via the real b10 webhook confirm, not this
+    /// command. Last registration wins, so callers transparently get the succeeding mock in Dev/Testing.
+    /// </summary>
+    public static IServiceCollection AddDevelopmentPaymentCapture(this IServiceCollection services)
+    {
+        services.AddSingleton<IPaymentCaptureSimulator, MockPaymentCaptureSimulator>();
+        return services;
+    }
 }

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/ServiceConfiguration/ServiceCollectionExtension.cs

@@ -3,96 +3,287 @@ using Baya.Application.Contracts.Invoices;
 using Baya.Application.Contracts.Payments;
 using Baya.Application.Contracts.Reviews;
 using Baya.Infrastructure.CrossCutting.Seams;
+using Baya.Infrastructure.CrossCutting.Seams.Real;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
 
 namespace Baya.Infrastructure.CrossCutting.ServiceConfiguration;
 
 public static class ServiceCollectionExtension
 {
     /// <summary>
-    /// Registers the cross-cutting seams (time, PII encryption, cache, object storage, SMS) with their
-    /// in-memory/local mock implementations. Swapping in a real provider later is a registration change
-    /// here — callers depend only on the Application contracts. (The real in-app
-    /// <c>INotificationDispatcher</c> needs the database, so it is registered in the Persistence layer.)
+    /// Registers the cross-cutting + vendor-rail seams. Each rail is <b>config-selected</b> (refinement-phase-8):
+    /// the deterministic mock is the default, and setting the rail's <c>Seams:*:Provider</c> to a real provider
+    /// token swaps in the real HTTP adapter behind the same Application contract — <b>callers never change</b>. An
+    /// unconfigured/typo'd provider falls closed to the mock. This makes a partial rollout the normal case (real SMS
+    /// + real geocoder while payments stay mocked in a pre-launch environment). Real adapters read credentials from
+    /// <c>Seams:*</c> (user-secrets/environment) and get an <see cref="System.Net.Http.HttpClient"/> from the
+    /// <c>IHttpClientFactory</c>. (The real in-app <c>INotificationDispatcher</c> needs the database, so it is
+    /// registered in the Persistence layer.)
     /// </summary>
     public static IServiceCollection AddCrossCuttingSeams(this IServiceCollection services, IConfiguration configuration)
     {
         services.Configure<SeamOptions>(configuration.GetSection(SeamOptions.SectionName));
+        var seams = configuration.GetSection(SeamOptions.SectionName).Get<SeamOptions>() ?? new SeamOptions();
 
+        services.AddHttpClient();
         services.AddMemoryCache();
 
         services.AddSingleton<IDateTimeProvider, SystemDateTimeProvider>();
         services.AddSingleton<IFieldEncryptor, SymmetricFieldEncryptor>();
         services.AddSingleton<ICacheService, MemoryCacheService>();
-        services.AddSingleton<IObjectStorage, LocalDiskObjectStorage>();
 
-        // OTP/SMS delivery rail (backend-phase-2). The mock logs the code; a real gateway client
-        // (Kavenegar/Ghasedak/SMS.ir) replaces this registration only.
-        services.AddSingleton<ISmsSender, LoggingSmsSender>();
+        RegisterObjectStorage(services, seams);
+        RegisterSms(services, seams);
+        RegisterTrustRails(services, seams);
+        RegisterGeocoder(services, seams);
+        RegisterPaymentRails(services, seams);
+        RegisterBnpl(services, seams);
+        RegisterPayoutRail(services, seams);
+        RegisterMoadian(services, seams);
 
-        // استعلام شبا IBAN-owner ↔ national-id inquiry (backend-phase-3). The mock returns a deterministic
-        // fake match; a real Finnotech/banking-bridge client replaces this registration only.
-        services.AddSingleton<IBankAccountOwnershipVerifier, MockBankAccountOwnershipVerifier>();
+        // Payment-capture trigger (backend-phase-9). refinement-phase-8 (6.4): the real card capture (b10) supersedes
+        // it, so production registers the fail-closed DisabledPaymentCaptureSimulator (the dev-only bookings/convert
+        // endpoint fabricates nothing in a deployed env); Development/Testing re-register the real MockPaymentCaptureSimulator
+        // over this via AddDevelopmentPaymentCapture (last registration wins).
+        services.AddSingleton<IPaymentCaptureSimulator, DisabledPaymentCaptureSimulator>();
 
-        // Address geocoding (backend-phase-4). The mock derives deterministic coordinates around the city
-        // centroid with no network call; a real Neshan/Google geocoding client replaces this registration.
-        services.AddSingleton<IGeocoder, MockGeocoder>();
-
-        // Nurse-verification vendors (backend-phase-6). All three are deterministic mocks; a real Iranian
-        // e-KYC vendor / Shahkar bridge / (future) MoH-INO portal swaps in by a registration change only —
-        // no mock behaviour is baked into any handler call site.
-        services.AddSingleton<IShahkarVerifier, MockShahkarVerifier>();
-        services.AddSingleton<IIdentityKycProvider, MockIdentityKycProvider>();
-        services.AddSingleton<ICredentialVerifier, MockCredentialVerifier>();
-
-        // Payment-capture trigger (backend-phase-9). The mock returns a deterministic succeeded capture so
-        // ConvertRequestToBooking is testable now; in b10 the real card capture replaces this registration
-        // and calls ConvertRequestToBooking directly on a real payment_transactions.succeeded.
-        services.AddSingleton<IPaymentCaptureSimulator, MockPaymentCaptureSimulator>();
-
-        // Payments money-path seams (backend-phase-10). All four are deterministic mocks; a real card PSP /
-        // تسهیم split adapter (config-selected per payment_gateways.config_json), per-provider signature
-        // verifier, and StackExchange.Redis lock swap in by a registration change only — no mock behaviour is
-        // baked into any handler. The DB uniques/state-machine remain the authoritative money-path backstop.
-        services.AddSingleton<IPaymentProvider, MockPaymentProvider>();
-        services.AddSingleton<ISettlementSplitProvider, MockSettlementSplitProvider>();
-        services.AddSingleton<IWebhookVerifier, MockWebhookVerifier>();
-        services.AddSingleton<IDistributedLock, InProcessDistributedLock>();
-
-        // Refunds/invoices seams (backend-phase-11). سامانه مودیان e-invoicing is mocked (pending/no-ref by
-        // default; config can force registered).
-        services.AddSingleton<IMoadianClient, MockMoadianClient>();
-
-        // BNPL seams (backend-phase-12). The deterministic MockBnplProvider drives the full eligible → settled →
-        // reverted state machine with no network; the resolver selects one impl per provider_code (config-driven,
-        // never an if(mock) in a handler); ICurrencyNormalizer does Toman↔IRR at the boundary only. A real
-        // SnappPay/Digipay adapter + real Redis normalizer swap in by a registration change only. IBnplProvider
-        // is still registered directly for the b11 refund path's bnpl_revert channel.
-        services.AddSingleton<MockBnplProvider>();
-        services.AddSingleton<IBnplProvider>(sp => sp.GetRequiredService<MockBnplProvider>());
-        services.AddSingleton<IBnplProviderResolver, MockBnplProviderResolver>();
-        services.AddSingleton<ICurrencyNormalizer, MockCurrencyNormalizer>();
-
-        // Payout bank rail (backend-phase-13). The deterministic MockBankTransferProvider settles every PAYA/SATNA
-        // instruction paid with no money movement; a config switch forces whole-batch/single-row failures so the
-        // partially_failed + retry paths are testable. A real transferor (Jibit/Vandar/Sadad payout) with a
-        // registered source settlement account + reconciliation callback swaps in by a registration change only —
-        // the payout status machine + the nurse_payout_booking_links UNIQUE remain the irreversible-transfer backstop.
-        services.AddSingleton<IBankTransferProvider, MockBankTransferProvider>();
-
-        // AI review moderation (backend-phase-14). The mock is a keyword filter / pass-through (clean → human
-        // flag by default so the publish gate holds; banned word → reject; config toggle auto-approves clean).
-        // A real text classifier / LLM endpoint swaps in by a registration change only — ModerateReviewCommand
-        // keeps decision authority + the human override, so the real impl never touches the handler.
+        // Non-vendor mocks that stay as-is (real behaviour is out of this phase's scope / manual is the intended MVP).
+        services.AddSingleton<ICredentialVerifier, MockCredentialVerifier>();              // 5.6 manual = intended MVP
         services.AddSingleton<IReviewModerationService, MockReviewModerationService>();
-
-        // Partner-center licensing (backend-phase-15). eNamad / MoH establishment-permit registries have no
-        // public B2B API, so the mock returns NeedsManualReview (manual admin approval at MVP; config can force
-        // auto-approve for tests). A real registry/API client swaps in by a registration change only —
-        // VerifyPartnerCenter records the decision and is never touched.
-        services.AddSingleton<ILicenseVerificationService, MockLicenseVerificationService>();
+        services.AddSingleton<ILicenseVerificationService, MockLicenseVerificationService>(); // 5.6 manual = intended MVP
 
         return services;
     }
+
+    // ---- object storage (5.5) --------------------------------------------------------------------------------
+
+    private static void RegisterObjectStorage(IServiceCollection services, SeamOptions seams)
+    {
+        if (Is(seams.ObjectStorage.Provider, SeamProviders.S3))
+        {
+            services.AddHttpClient(HttpClients.ObjectStorage);
+            services.AddSingleton<IObjectStorage>(sp => new S3ObjectStorage(
+                Client(sp, HttpClients.ObjectStorage),
+                sp.GetRequiredService<Microsoft.Extensions.Options.IOptions<SeamOptions>>()));
+        }
+        else
+        {
+            services.AddSingleton<IObjectStorage, LocalDiskObjectStorage>();
+        }
+    }
+
+    // ---- SMS (5.1, launch-critical) --------------------------------------------------------------------------
+
+    private static void RegisterSms(IServiceCollection services, SeamOptions seams)
+    {
+        var provider = seams.Sms.Provider;
+        if (Is(provider, SeamProviders.Kavenegar))
+        {
+            services.AddHttpClient(HttpClients.Sms, c => c.BaseAddress = new Uri(BaseOrDefault(seams.Sms.BaseUrl, "https://api.kavenegar.com/")));
+            services.AddSingleton<ISmsSender>(sp => new KavenegarSmsSender(
+                Client(sp, HttpClients.Sms),
+                sp.GetRequiredService<Microsoft.Extensions.Options.IOptions<SeamOptions>>(),
+                sp.GetRequiredService<ILogger<KavenegarSmsSender>>()));
+        }
+        else if (Is(provider, SeamProviders.SmsIr) || Is(provider, SeamProviders.Ghasedak))
+        {
+            throw new NotSupportedException(
+                $"SMS provider '{provider}' is not implemented — only 'kavenegar' has a real adapter (refinement-phase-8). " +
+                "Add its adapter behind ISmsSender, or use 'mock'/'kavenegar'.");
+        }
+        else
+        {
+            // b2 log-only mock; the Development OTP-capture decorator is layered on in Program.cs (Development only,
+            // and only while this mock is selected — a real SMS provider disables it so the OTP is never logged).
+            services.AddSingleton<ISmsSender, LoggingSmsSender>();
+        }
+    }
+
+    // ---- trust & identity (5.2, 5.3) — Finnotech-class KYC bridge --------------------------------------------
+
+    private static void RegisterTrustRails(IServiceCollection services, SeamOptions seams)
+    {
+        var anyFinnotech =
+            Is(seams.Shahkar.Provider, SeamProviders.Finnotech) ||
+            Is(seams.IdentityKyc.Provider, SeamProviders.Finnotech) ||
+            Is(seams.BankOwnership.Provider, SeamProviders.Finnotech);
+
+        if (anyFinnotech)
+        {
+            services.AddHttpClient(HttpClients.Finnotech);
+            services.AddSingleton(sp => new FinnotechClient(
+                Client(sp, HttpClients.Finnotech),
+                sp.GetRequiredService<Microsoft.Extensions.Options.IOptions<SeamOptions>>()));
+        }
+
+        if (Is(seams.Shahkar.Provider, SeamProviders.Finnotech))
+            services.AddSingleton<IShahkarVerifier>(sp => new FinnotechShahkarVerifier(sp.GetRequiredService<FinnotechClient>()));
+        else
+            services.AddSingleton<IShahkarVerifier, MockShahkarVerifier>();
+
+        if (Is(seams.IdentityKyc.Provider, SeamProviders.Finnotech))
+            services.AddSingleton<IIdentityKycProvider>(sp => new FinnotechIdentityKycProvider(sp.GetRequiredService<FinnotechClient>()));
+        else
+            services.AddSingleton<IIdentityKycProvider, MockIdentityKycProvider>();
+
+        if (Is(seams.BankOwnership.Provider, SeamProviders.Finnotech))
+            services.AddSingleton<IBankAccountOwnershipVerifier>(sp => new FinnotechBankAccountOwnershipVerifier(sp.GetRequiredService<FinnotechClient>()));
+        else
+            services.AddSingleton<IBankAccountOwnershipVerifier, MockBankAccountOwnershipVerifier>();
+    }
+
+    // ---- geocoding (5.4) -------------------------------------------------------------------------------------
+
+    private static void RegisterGeocoder(IServiceCollection services, SeamOptions seams)
+    {
+        if (Is(seams.Geocoding.Provider, SeamProviders.Neshan))
+        {
+            services.AddHttpClient(HttpClients.Geocoding);
+            services.AddSingleton<IGeocoder>(sp => new NeshanGeocoder(
+                Client(sp, HttpClients.Geocoding),
+                sp.GetRequiredService<Microsoft.Extensions.Options.IOptions<SeamOptions>>(),
+                sp.GetRequiredService<ILogger<NeshanGeocoder>>()));
+        }
+        else
+        {
+            services.AddSingleton<IGeocoder, MockGeocoder>();
+        }
+    }
+
+    // ---- card PSP + webhook signature + تسهیم split (6.1) ----------------------------------------------------
+
+    private static void RegisterPaymentRails(IServiceCollection services, SeamOptions seams)
+    {
+        var real = !Is(seams.Payments.Provider, SeamProviders.Mock) && !string.IsNullOrWhiteSpace(seams.Payments.Provider);
+
+        if (real)
+        {
+            services.AddHttpClient(HttpClients.Psp);
+            services.AddSingleton<IPaymentProvider>(sp => new ZarinPalPaymentProvider(
+                Client(sp, HttpClients.Psp),
+                sp.GetRequiredService<Microsoft.Extensions.Options.IOptions<SeamOptions>>(),
+                sp.GetRequiredService<ILogger<ZarinPalPaymentProvider>>()));
+            services.AddSingleton<ISettlementSplitProvider>(sp => new ProviderSettlementSplitProvider(
+                Client(sp, HttpClients.Psp),
+                sp.GetRequiredService<Microsoft.Extensions.Options.IOptions<SeamOptions>>(),
+                sp.GetRequiredService<ILogger<ProviderSettlementSplitProvider>>()));
+            // Per-provider HMAC over the raw callback body — never trust a callback alone (the confirm path still
+            // re-verifies server-side). Shared by the PSP + BNPL + payout-reconciliation callbacks.
+            services.AddSingleton<IWebhookVerifier, HmacWebhookVerifier>();
+        }
+        else
+        {
+            services.AddSingleton<IPaymentProvider, MockPaymentProvider>();
+            services.AddSingleton<ISettlementSplitProvider, MockSettlementSplitProvider>();
+            services.AddSingleton<IWebhookVerifier, MockWebhookVerifier>();
+        }
+
+        // Money-path mutex — in-proc today (the DB uniques/state-machine are the authoritative backstop);
+        // Redis-backed for >1 instance. Unchanged by the vendor swap.
+        services.AddSingleton<IDistributedLock, InProcessDistributedLock>();
+    }
+
+    // ---- BNPL (6.2) ------------------------------------------------------------------------------------------
+
+    private static void RegisterBnpl(IServiceCollection services, SeamOptions seams)
+    {
+        // The in-house net-of-fee model is always available — it stands in for the `balinyaar` provider_code even
+        // in real mode (no external API), and is the mock for every code in mock mode.
+        services.AddSingleton<MockBnplProvider>();
+        services.AddSingleton<ICurrencyNormalizer, MockCurrencyNormalizer>(); // config-driven multiplier = the real impl
+
+        if (string.Equals(seams.Bnpl.Provider, "real", StringComparison.OrdinalIgnoreCase))
+        {
+            services.AddHttpClient(HttpClients.BnplSnappPay);
+            services.AddHttpClient(HttpClients.BnplDigipay);
+
+            services.AddSingleton(sp => new SnappPayBnplProvider(
+                Client(sp, HttpClients.BnplSnappPay),
+                sp.GetRequiredService<ICurrencyNormalizer>(),
+                Connection(seams, Baya.Domain.Entities.Bnpl.BnplProviderCodes.SnappPay),
+                seams.Bnpl.WireCurrency,
+                sp.GetRequiredService<ILogger<SnappPayBnplProvider>>()));
+            services.AddSingleton(sp => new DigipayBnplProvider(
+                Client(sp, HttpClients.BnplDigipay),
+                sp.GetRequiredService<ICurrencyNormalizer>(),
+                Connection(seams, Baya.Domain.Entities.Bnpl.BnplProviderCodes.Digipay),
+                seams.Bnpl.WireCurrency,
+                sp.GetRequiredService<ILogger<DigipayBnplProvider>>()));
+
+            services.AddSingleton<IBnplProviderResolver, ConfiguredBnplProviderResolver>();
+            // The b11 refund `bnpl_revert` path injects IBnplProvider directly (not per-code); SnappPay is the
+            // default revert provider. Per-code revert resolution through the resolver is a documented follow-up.
+            services.AddSingleton<IBnplProvider>(sp => sp.GetRequiredService<SnappPayBnplProvider>());
+        }
+        else
+        {
+            services.AddSingleton<IBnplProvider>(sp => sp.GetRequiredService<MockBnplProvider>());
+            services.AddSingleton<IBnplProviderResolver, MockBnplProviderResolver>();
+        }
+    }
+
+    // ---- PAYA/SATNA payout rail (6.3) ------------------------------------------------------------------------
+
+    private static void RegisterPayoutRail(IServiceCollection services, SeamOptions seams)
+    {
+        if (Is(seams.BankTransfer.Provider, SeamProviders.Jibit))
+        {
+            services.AddHttpClient(HttpClients.BankTransfer);
+            services.AddSingleton<IBankTransferProvider>(sp => new JibitBankTransferProvider(
+                Client(sp, HttpClients.BankTransfer),
+                sp.GetRequiredService<Microsoft.Extensions.Options.IOptions<SeamOptions>>(),
+                sp.GetRequiredService<ILogger<JibitBankTransferProvider>>()));
+        }
+        else
+        {
+            services.AddSingleton<IBankTransferProvider, MockBankTransferProvider>();
+        }
+    }
+
+    // ---- Moadian e-invoicing (6.5) ---------------------------------------------------------------------------
+
+    private static void RegisterMoadian(IServiceCollection services, SeamOptions seams)
+    {
+        if (Is(seams.Moadian.Provider, SeamProviders.Moadian))
+        {
+            services.AddHttpClient(HttpClients.Moadian);
+            services.AddSingleton<IMoadianClient>(sp => new MoadianClient(
+                Client(sp, HttpClients.Moadian),
+                sp.GetRequiredService<Microsoft.Extensions.Options.IOptions<SeamOptions>>(),
+                sp.GetRequiredService<ILogger<MoadianClient>>()));
+        }
+        else
+        {
+            services.AddSingleton<IMoadianClient, MockMoadianClient>();
+        }
+    }
+
+    // ---- helpers ---------------------------------------------------------------------------------------------
+
+    private static bool Is(string? configured, string token)
+        => string.Equals(configured, token, StringComparison.OrdinalIgnoreCase);
+
+    private static System.Net.Http.HttpClient Client(IServiceProvider sp, string name)
+        => sp.GetRequiredService<System.Net.Http.IHttpClientFactory>().CreateClient(name);
+
+    private static string BaseOrDefault(string configured, string fallback)
+        => string.IsNullOrWhiteSpace(configured) ? fallback : configured;
+
+    private static BnplProviderConnection Connection(SeamOptions seams, string code)
+        => seams.Bnpl.Providers.TryGetValue(code, out var connection) ? connection : new BnplProviderConnection();
+
+    private static class HttpClients
+    {
+        public const string ObjectStorage = "seam-object-storage";
+        public const string Sms = "seam-sms";
+        public const string Finnotech = "seam-finnotech";
+        public const string Geocoding = "seam-geocoding";
+        public const string Psp = "seam-psp";
+        public const string BnplSnappPay = "seam-bnpl-snapppay";
+        public const string BnplDigipay = "seam-bnpl-digipay";
+        public const string BankTransfer = "seam-bank-transfer";
+        public const string Moadian = "seam-moadian";
+    }
 }

server/src/Infrastructure/Baya.Infrastructure.Persistence/Repositories/InvoiceRepository.cs

@@ -53,6 +53,13 @@ internal sealed class InvoiceRepository : BaseAsyncRepository<Invoice>, IInvoice
         return new InvoiceProjection(row.CustomerUserId, row.Invoice.PdfStorageKey, dto);
     }
 
+    public async Task<IReadOnlyList<Invoice>> GetUnregisteredMoadianInvoicesAsync(int max, CancellationToken cancellationToken)
+        => await Table
+            .Where(i => i.MoadianStatus == MoadianStatus.Pending || i.MoadianStatus == MoadianStatus.Submitted)
+            .OrderBy(i => i.Id)
+            .Take(max)
+            .ToListAsync(cancellationToken);
+
     public Task AddInvoiceAsync(Invoice invoice, CancellationToken cancellationToken)
         => base.AddAsync(invoice);
 

server/src/Infrastructure/Baya.Infrastructure.Persistence/ServiceConfiguration/ServiceCollectionExtensions.cs

@@ -70,6 +70,8 @@ public static class ServiceCollectionExtensions
         services.AddSingleton<IRecurringJob, CredentialExpiryScanJob>();
         services.AddSingleton<IRecurringJob, NoShowSweepJob>();
         services.AddSingleton<IRecurringJob, WeeklyPayoutGenerationJob>();
+        // refinement-phase-8 (6.5): walk pending/submitted سامانه مودیان invoices toward their registered reference.
+        services.AddSingleton<IRecurringJob, MoadianReconciliationJob>();
         services.AddHostedService<RecurringJobSchedulerHostedService>();
 
         // Search (backend-phase-7). The index maintainer keeps nurse_search_index consistent inline inside

server/src/Infrastructure/Baya.Infrastructure.Persistence/Services/Scheduling/Jobs/MoadianReconciliationJob.cs

@@ -0,0 +1,38 @@
+#nullable enable
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Baya.Application.Features.Invoices.Commands.ReconcileMoadianInvoices;
+using Mediator;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+
+namespace Baya.Infrastructure.Persistence.Services.Scheduling.Jobs;
+
+/// <summary>
+/// Walks every <c>pending</c>/<c>submitted</c> سامانه مودیان invoice toward its registered 22-digit reference
+/// (refinement-phase-8, 6.5) — the async reconciliation the mock <c>IMoadianClient</c> collapses. Runs on a fixed
+/// cadence (no new seeded config key → no migration) and is idempotent: a re-submission of an already-registered
+/// invoice is a no-op, and مودیان dedups on the invoice number so a re-submit doubles as the status poll. Sends
+/// <see cref="ReconcileMoadianInvoicesCommand"/> under the scheduler's per-tick lock.
+/// </summary>
+internal sealed class MoadianReconciliationJob(ILogger<MoadianReconciliationJob> logger) : IRecurringJob
+{
+    public string Name => "moadian_reconciliation";
+
+    // A fixed cadence keeps this off the seeded-config path (no migration); Moadian registration is not
+    // time-critical, so every few hours is ample.
+    public ValueTask<TimeSpan> GetIntervalAsync(IServiceProvider services, CancellationToken cancellationToken)
+        => ValueTask.FromResult(TimeSpan.FromHours(6));
+
+    public async ValueTask RunAsync(IServiceProvider services, CancellationToken cancellationToken)
+    {
+        var sender = services.GetRequiredService<ISender>();
+        var result = await sender.Send(new ReconcileMoadianInvoicesCommand(), cancellationToken);
+
+        if (result.IsSuccess && result.Result is { } reconcile && reconcile.Scanned > 0)
+            logger.LogInformation(
+                "مودیان reconciliation scanned {Scanned} invoice(s); {Registered} reached registered",
+                reconcile.Scanned, reconcile.Registered);
+    }
+}