diff --git a/.env.example b/.env.example
index df47259..cd3b0bd 100644
--- a/.env.example
+++ b/.env.example
@@ -51,9 +51,14 @@ BOOKSRUN_FTP_REMOTE_PATH=
 INGRAM_API_KEY=
 INGRAM_ACCOUNT_ID=
 
-# --- Payments (Helcim) ---
-HELCIM_API_TOKEN=
-HELCIM_ACCOUNT_ID=
+# --- Payments (official WooCommerce Stripe gateway) ---
+# Use test keys in dev/staging and live keys only in production. The deploy
+# writes these values to gitignored Docker secret files before configuring
+# the plugin. Webhook signing secret is optional but strongly recommended.
+STRIPE_MODE=test
+STRIPE_PUBLISHABLE_KEY=
+STRIPE_SECRET_KEY=
+STRIPE_WEBHOOK_SECRET=
 
 # --- Marketing ---
 MAILERLITE_API_KEY=
diff --git a/README.md b/README.md
index 42edd38..4765b11 100644
--- a/README.md
+++ b/README.md
@@ -101,39 +101,34 @@ After that, the starter site's content and Customizer settings persist in
 the database like any other WordPress content — a redeploy or a fresh
 `deploy.sh` run doesn't touch it or need to repeat it.
 
-### Payments: Helcim (preauth/capture)
+### Payments: WooCommerce Stripe (authorize/capture)
 
-The Helcim gateway is a **custom `WC_Payment_Gateway`** shipped inside
-`bookstore-core` (`Payments\HelcimGateway`, built directly against
-HelcimPay.js) — not the off-the-shelf `helcim-commerce-for-woocommerce`
-plugin, which `deploy.sh` deliberately does not install (it only
-supports immediate charges; see design doc Appendix B). Checkout
-authorizes (holds) the card; the charge only actually happens once the
-supplier order succeeds (`Order\SupplierOrderJob`) — see that class and
-`Payments\HelcimClient`'s docblocks for the full sequence.
+Deployment installs and activates the official `woocommerce-gateway-stripe`
+extension and enables its **Issue an authorization on checkout, and capture
+later** setting. Stripe owns card collection, Checkout Block integration,
+webhooks, authorization, capture, and cancellation; `bookstore-core` never
+handles card data or Stripe API credentials.
 
-The gateway needs a Helcim **sandbox API token**, which isn't something a
-public API can hand out, so it's a one-time manual step per environment:
+Set `STRIPE_MODE`, `STRIPE_PUBLISHABLE_KEY`, `STRIPE_SECRET_KEY`, and (when
+available) `STRIPE_WEBHOOK_SECRET` in `.env.<environment>`, then deploy. The
+deploy script writes them to gitignored Docker secret files and configures the
+official gateway without printing the credentials. Stripe stays disabled when
+either API key is missing. Use test keys until checkout, webhooks, capture, and
+cancellation have been exercised end to end.
 
-1. Sign up for a free Helcim account.
-2. Helcim dashboard → **Integrations → API Configuration** → create an API
-   token.
-3. Put it in `HELCIM_API_TOKEN` in `.env.<environment>`, then re-run
-   `make deploy ENV=<environment>`.
+For manual API-key connections, create a Stripe webhook endpoint for
+`https://<store-host>/wc-api/wc_stripe`, subscribe it to the events recommended
+by the WooCommerce Stripe settings screen, and place its `whsec_...` signing
+secret in `STRIPE_WEBHOOK_SECRET`. The workflow has seven days from checkout
+to capture an online card authorization. Manually entered keys do not provide
+Stripe-to-WooCommerce payment-method synchronization or every feature of the
+OAuth connection.
 
-`deploy.sh` writes the token to a gitignored secrets file the same way it
-already does for `HARDCOVER_API_TOKEN` (see `secrets/<env>/` above), and
-`Payments\HelcimGatewayConfig::ensure_configured_from_env()` seeds the
-gateway's WooCommerce settings (sandbox mode, disabled by default — a
-human still enables it at checkout once ready) the first time it finds a
-token. **Until a token exists, `Payments\HelcimClient` runs in fake
-mode** — every preauth/capture/reverse call returns a synthetic approved
-response instead of hitting the real API, so the whole checkout ->
-preauth -> fraud review -> supplier order -> capture/reverse flow is
-testable end-to-end without one (same pattern as the synthetic
-`gutenberg_test` supplier). Go-live (switching from sandbox to Helcim's
-live environment) is a deliberate manual step on the settings screen,
-not something this repo automates.
+An authorized Stripe order arrives as **On hold**. `Order\SupplierOrderJob`
+runs the local fraud extension point, confirms the distributor order, and
+then changes the order to **Processing**, which makes the Stripe extension
+capture the authorization. A distributor failure changes the order to
+**Cancelled** so Stripe releases the hold, then routes it to **Needs Review**.
 
 ### Admin access restriction (production)
 
@@ -212,11 +207,11 @@ with a bigger `--limit` continues forward instead of rescanning. Pricing
 
 ## Checkout + order engine (Week 3, payment flow revised)
 
-A synchronous pre-authorization supplier/margin recheck runs right
-before the card is held (`Order\CheckoutRecheck`, price/margin only —
-never charges anything). The custom Helcim gateway (see "Payments:
-Helcim" above) then holds the card and, once the fraud check
-(`Payments\FraudCheck`) passes, moves the order to `bsc-authorized`
+A synchronous supplier/margin recheck runs right before payment
+(`Order\CheckoutRecheck`, price/margin only — never charges anything).
+The official WooCommerce Stripe extension then holds the card and its
+On-hold transition runs the fraud check (`Payments\FraudCheck`) before
+moving the order to `bsc-authorized`
 (held, not charged). `Order\SupplierOrderJob` picks it up from there:
 submits to the supplier, and only on success **captures** the hold (the
 card is actually charged for the first time here) before moving to
diff --git a/deploy/backup.sh b/deploy/backup.sh
index b2b1a91..4df9bf2 100755
--- a/deploy/backup.sh
+++ b/deploy/backup.sh
@@ -43,7 +43,7 @@ $COMPOSE run --rm -T -u www-data wordpress tar -czf - -C /var/www/html/wp-conten
   > "$BACKUP_DIR/uploads-${TIMESTAMP}.tar.gz"
 
 echo "==> archiving environment config"
-# Every API key (Booksrun/Ingram/Helcim/MailerLite/Hardcover), the WP admin
+# Every API key (Booksrun/Ingram/Stripe/MailerLite/Hardcover), the WP admin
 # bootstrap credentials, and both DB passwords live ONLY in this one
 # gitignored host file — losing the host without this backed up loses all of
 # it, even with the DB dump and uploads intact. Same trust model as the DB
diff --git a/deploy/deploy.sh b/deploy/deploy.sh
index e7c45e1..1b9de8f 100755
--- a/deploy/deploy.sh
+++ b/deploy/deploy.sh
@@ -67,14 +67,36 @@ printf '%s' "$DB_ROOT_PASSWORD_VALUE" > "$SECRETS_DIR/db_root_password"
 # exact bug ENVIRONMENT-unset guards elsewhere in this file exist to prevent).
 HARDCOVER_API_TOKEN_VALUE="$(env_get "$ENV_FILE" HARDCOVER_API_TOKEN)"
 printf '%s' "$HARDCOVER_API_TOKEN_VALUE" > "$SECRETS_DIR/hardcover_api_token"
-# Same reasoning/pattern as Hardcover above — optional, written unconditionally.
-# Payments\HelcimGatewayConfig::is_configured() is false (and the
-# gateway falls back to fake mode — see HelcimClient) until a real
-# sandbox token lands in HELCIM_API_TOKEN.
-HELCIM_API_TOKEN_VALUE="$(env_get "$ENV_FILE" HELCIM_API_TOKEN)"
-printf '%s' "$HELCIM_API_TOKEN_VALUE" > "$SECRETS_DIR/helcim_api_token"
-if [[ -z "$HELCIM_API_TOKEN_VALUE" ]]; then
-  echo "    (HELCIM_API_TOKEN not set in ${ENV_FILE} — Helcim gateway will install but stay unconfigured)"
+# Stripe credentials are supplied through .env but mounted into the
+# containers as files so secret values never become container environment
+# variables. The official gateway copies them into its WordPress settings.
+STRIPE_MODE_VALUE="$(env_get "$ENV_FILE" STRIPE_MODE)"
+STRIPE_MODE_VALUE="${STRIPE_MODE_VALUE:-test}"
+case "$STRIPE_MODE_VALUE" in
+  test|live) ;;
+  *) echo "STRIPE_MODE must be 'test' or 'live'" >&2; exit 1 ;;
+esac
+STRIPE_PUBLISHABLE_KEY_VALUE="$(env_get "$ENV_FILE" STRIPE_PUBLISHABLE_KEY)"
+STRIPE_SECRET_KEY_VALUE="$(env_get "$ENV_FILE" STRIPE_SECRET_KEY)"
+STRIPE_WEBHOOK_SECRET_VALUE="$(env_get "$ENV_FILE" STRIPE_WEBHOOK_SECRET)"
+printf '%s' "$STRIPE_PUBLISHABLE_KEY_VALUE" > "$SECRETS_DIR/stripe_publishable_key"
+printf '%s' "$STRIPE_SECRET_KEY_VALUE" > "$SECRETS_DIR/stripe_secret_key"
+printf '%s' "$STRIPE_WEBHOOK_SECRET_VALUE" > "$SECRETS_DIR/stripe_webhook_secret"
+if [[ -z "$STRIPE_PUBLISHABLE_KEY_VALUE" || -z "$STRIPE_SECRET_KEY_VALUE" ]]; then
+  echo "    (Stripe keys not set in ${ENV_FILE} — Stripe will remain disabled)"
+else
+  if [[ "$STRIPE_PUBLISHABLE_KEY_VALUE" != pk_${STRIPE_MODE_VALUE}_* ]]; then
+    echo "STRIPE_PUBLISHABLE_KEY does not match STRIPE_MODE=${STRIPE_MODE_VALUE}" >&2
+    exit 1
+  fi
+  if [[ "$STRIPE_SECRET_KEY_VALUE" != sk_${STRIPE_MODE_VALUE}_* && "$STRIPE_SECRET_KEY_VALUE" != rk_${STRIPE_MODE_VALUE}_* ]]; then
+    echo "STRIPE_SECRET_KEY does not match STRIPE_MODE=${STRIPE_MODE_VALUE}" >&2
+    exit 1
+  fi
+fi
+if [[ -n "$STRIPE_WEBHOOK_SECRET_VALUE" && "$STRIPE_WEBHOOK_SECRET_VALUE" != whsec_* ]]; then
+  echo "STRIPE_WEBHOOK_SECRET must start with whsec_" >&2
+  exit 1
 fi
 # Same pattern again — optional, written unconditionally.
 # Integration\BooksRunAdapter::is_configured() is false until a real key
@@ -90,7 +112,7 @@ printf '%s' "$BOOKSRUN_FTP_PASSWORD_VALUE" > "$SECRETS_DIR/booksrun_ftp_password
 # unreadable to them. The containing directory (700, above) is what
 # actually keeps other host users out; these just need to be world-readable
 # within that already-restricted directory.
-chmod 644 "$SECRETS_DIR/db_password" "$SECRETS_DIR/db_root_password" "$SECRETS_DIR/hardcover_api_token" "$SECRETS_DIR/helcim_api_token" "$SECRETS_DIR/booksrun_api_key" "$SECRETS_DIR/booksrun_ftp_password"
+chmod 644 "$SECRETS_DIR/db_password" "$SECRETS_DIR/db_root_password" "$SECRETS_DIR/hardcover_api_token" "$SECRETS_DIR/stripe_publishable_key" "$SECRETS_DIR/stripe_secret_key" "$SECRETS_DIR/stripe_webhook_secret" "$SECRETS_DIR/booksrun_api_key" "$SECRETS_DIR/booksrun_ftp_password"
 
 echo "==> building and starting ${ENVIRONMENT}"
 $COMPOSE up -d --build
@@ -133,15 +155,34 @@ echo "==> installing/activating theme (Blocksy — free; Book Store starter site
 $WP theme install blocksy --activate
 
 echo "==> installing/activating required plugins"
-# helcim-commerce-for-woocommerce (the off-the-shelf, immediate-charge-
-# only plugin) is deliberately NOT installed here anymore — Payments\
-# HelcimGateway (shipped inside bookstore-core) replaces it with a
-# preauth-then-capture flow built directly against HelcimPay.js. See
-# design doc Appendix B's revised decision.
-$WP plugin install woocommerce redis-cache blocksy-companion --activate
+$WP plugin install woocommerce woocommerce-gateway-stripe redis-cache blocksy-companion --activate
 $WP plugin activate bookstore-core
 $WP redis enable || true
 
+# The distributor workflow depends on Stripe authorizing at checkout and
+# capturing later when SupplierOrderJob moves the order to Processing.
+# Read the mounted files inside the container so credentials never appear in
+# this command line or deployment logs.
+echo "==> configuring Stripe from ${ENV_FILE} (authorize and capture later)"
+$WP eval '
+$read_secret = static function (string $env): string {
+    $path = getenv($env);
+    return $path && is_readable($path) ? trim((string) file_get_contents($path)) : "";
+};
+$mode = getenv("STRIPE_MODE") === "live" ? "live" : "test";
+$publishable = $read_secret("STRIPE_PUBLISHABLE_KEY_FILE");
+$secret = $read_secret("STRIPE_SECRET_KEY_FILE");
+$webhook = $read_secret("STRIPE_WEBHOOK_SECRET_FILE");
+$settings = get_option("woocommerce_stripe_settings", []);
+$settings["enabled"] = $publishable !== "" && $secret !== "" ? "yes" : "no";
+$settings["capture"] = "no";
+$settings["testmode"] = $mode === "test" ? "yes" : "no";
+$settings[$mode === "test" ? "test_publishable_key" : "publishable_key"] = $publishable;
+$settings[$mode === "test" ? "test_secret_key" : "secret_key"] = $secret;
+$settings[$mode === "test" ? "test_webhook_secret" : "webhook_secret"] = $webhook;
+update_option("woocommerce_stripe_settings", $settings);
+'
+
 echo "==> enabling WooCommerce HPOS (custom order tables)"
 $WP option update woocommerce_custom_orders_table_enabled yes
 $WP option update woocommerce_custom_orders_table_data_sync_enabled yes
diff --git a/docker-compose.yml b/docker-compose.yml
index 0735cbf..fa89336 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -26,7 +26,7 @@
 # remain exposed to the same class of bug — nothing consumes them yet
 # (bookstore-core is still a stub for those), so when that code is written
 # it should read `_FILE` variants the same way HARDCOVER_API_TOKEN,
-# HELCIM_API_TOKEN (Week 3), and BOOKSRUN_API_KEY/BOOKSRUN_FTP_PASSWORD
+# BOOKSRUN_API_KEY/BOOKSRUN_FTP_PASSWORD
 # (Week 4) now do below.
 x-bookstore-env: &bookstore-env
   WORDPRESS_DB_HOST: db
@@ -45,10 +45,12 @@ x-bookstore-env: &bookstore-env
   ACTIVE_SUPPLIER_ADAPTERS: ${ACTIVE_SUPPLIER_ADAPTERS:-gutenberg_test}
   INGRAM_API_KEY: ${INGRAM_API_KEY:-}
   INGRAM_ACCOUNT_ID: ${INGRAM_ACCOUNT_ID:-}
-  HELCIM_ACCOUNT_ID: ${HELCIM_ACCOUNT_ID:-}
   MAILERLITE_API_KEY: ${MAILERLITE_API_KEY:-}
   HARDCOVER_API_TOKEN_FILE: /run/secrets/hardcover_api_token
-  HELCIM_API_TOKEN_FILE: /run/secrets/helcim_api_token
+  STRIPE_MODE: ${STRIPE_MODE:-test}
+  STRIPE_PUBLISHABLE_KEY_FILE: /run/secrets/stripe_publishable_key
+  STRIPE_SECRET_KEY_FILE: /run/secrets/stripe_secret_key
+  STRIPE_WEBHOOK_SECRET_FILE: /run/secrets/stripe_webhook_secret
   BOOKSRUN_API_KEY_FILE: /run/secrets/booksrun_api_key
   # Week 4: bulk FTP inventory feed connection details — BOOKSRUN_FTP_HOST
   # empty means Import\BooksRunOfferSync::is_ftp_configured() is false and
@@ -109,7 +111,9 @@ services:
       - ./wp-content/mu-plugins:/var/www/html/wp-content/mu-plugins
       - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/db_password:/run/secrets/db_password:ro
       - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/hardcover_api_token:/run/secrets/hardcover_api_token:ro
-      - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/helcim_api_token:/run/secrets/helcim_api_token:ro
+      - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/stripe_publishable_key:/run/secrets/stripe_publishable_key:ro
+      - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/stripe_secret_key:/run/secrets/stripe_secret_key:ro
+      - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/stripe_webhook_secret:/run/secrets/stripe_webhook_secret:ro
       - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/booksrun_api_key:/run/secrets/booksrun_api_key:ro
       - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/booksrun_ftp_password:/run/secrets/booksrun_ftp_password:ro
     healthcheck:
@@ -166,7 +170,9 @@ services:
       - ./docker/cron/entrypoint.sh:/usr/local/bin/cron-entrypoint.sh:ro
       - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/db_password:/run/secrets/db_password:ro
       - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/hardcover_api_token:/run/secrets/hardcover_api_token:ro
-      - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/helcim_api_token:/run/secrets/helcim_api_token:ro
+      - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/stripe_publishable_key:/run/secrets/stripe_publishable_key:ro
+      - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/stripe_secret_key:/run/secrets/stripe_secret_key:ro
+      - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/stripe_webhook_secret:/run/secrets/stripe_webhook_secret:ro
       - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/booksrun_api_key:/run/secrets/booksrun_api_key:ro
       - ./secrets/${ENVIRONMENT:?ENVIRONMENT must be set}/booksrun_ftp_password:/run/secrets/booksrun_ftp_password:ro
 
diff --git a/docs/online_bookstore_prelaunch_implementation_plan.docx b/docs/online_bookstore_prelaunch_implementation_plan.docx
index 9683856..cda8bc0 100644
Binary files a/docs/online_bookstore_prelaunch_implementation_plan.docx and b/docs/online_bookstore_prelaunch_implementation_plan.docx differ
diff --git a/wp-content/plugins/bookstore-core/assets/js/helcim-checkout-block.js b/wp-content/plugins/bookstore-core/assets/js/helcim-checkout-block.js
deleted file mode 100644
index 565d2c6..0000000
--- a/wp-content/plugins/bookstore-core/assets/js/helcim-checkout-block.js
+++ /dev/null
@@ -1,182 +0,0 @@
-/**
- * Blocks/Store API payment method for Payments\HelcimGateway (id
- * bsc_helcim). Registered via wc.wcBlocksRegistry.registerPaymentMethod
- * since this store only serves Cart/Checkout blocks — see
- * Payments\HelcimBlocksIntegration's docblock.
- *
- * Flow: customer clicks "Enter card details" -> POST /init (server talks
- * to Helcim, returns checkoutToken+secretToken) -> load HelcimPay.js,
- * render its iframe -> customer completes card entry -> HelcimPay.js
- * postMessages the result to window -> POST /confirm (server validates
- * the hash and stashes the preauth server-side, keyed to this session —
- * see Payments\CheckoutSession) -> only then does onPaymentSetup allow
- * WooCommerce to actually submit the order, which is what triggers
- * HelcimGateway::process_payment() to pick up that stashed preauth.
- *
- * Fake mode (no real Helcim token configured yet — see HelcimClient's
- * docblock): skips loading the real HelcimPay.js iframe entirely in
- * favor of a "Simulate card entry" button that drives the exact same
- * /init + /confirm calls, so this whole flow is testable today.
- */
-(function () {
-    var registerPaymentMethod = window.wc.wcBlocksRegistry.registerPaymentMethod;
-    var el = window.wp.element.createElement;
-    var useState = window.wp.element.useState;
-    var useEffect = window.wp.element.useEffect;
-    var settings = window.bscHelcimData || {};
-    var label = settings.title || 'Credit Card';
-
-    function restPost(path, body) {
-        return fetch(settings.restUrl + path, {
-            method: 'POST',
-            headers: {
-                'Content-Type': 'application/json',
-                'X-WP-Nonce': settings.nonce,
-            },
-            body: JSON.stringify(body || {}),
-            credentials: 'same-origin',
-        }).then(function (response) {
-            return response.json().then(function (data) {
-                if (!response.ok) {
-                    throw new Error(data.error || 'Payment request failed.');
-                }
-                return data;
-            });
-        });
-    }
-
-    function loadHelcimPayScript() {
-        return new Promise(function (resolve, reject) {
-            if (window.appendHelcimPayIframe) {
-                resolve();
-                return;
-            }
-            var script = document.createElement('script');
-            script.src = 'https://secure.helcim.app/helcim-pay/services/start.js';
-            script.onload = resolve;
-            script.onerror = function () {
-                reject(new Error('Could not load HelcimPay.js.'));
-            };
-            document.body.appendChild(script);
-        });
-    }
-
-    /** Exact event shape per Helcim's own documented example: event.data = {eventName, eventStatus, eventMessage}. */
-    function waitForHelcimResult(checkoutToken) {
-        return new Promise(function (resolve, reject) {
-            var identifierKey = 'helcim-pay-js-' + checkoutToken;
-            function handleMessage(event) {
-                if (!event.data || event.data.eventName !== identifierKey) {
-                    return;
-                }
-                if (event.data.eventStatus === 'SUCCESS') {
-                    window.removeEventListener('message', handleMessage);
-                    resolve(event.data.eventMessage);
-                } else if (event.data.eventStatus === 'ABORTED') {
-                    window.removeEventListener('message', handleMessage);
-                    reject(new Error('Card entry failed or was cancelled.'));
-                }
-                // 'HIDE' (modal closed without ABORTED/SUCCESS) is ignored here deliberately.
-            }
-            window.addEventListener('message', handleMessage);
-        });
-    }
-
-    function runRealFlow() {
-        var checkoutToken, secretToken;
-        return restPost('/init', {})
-            .then(function (init) {
-                checkoutToken = init.checkoutToken;
-                secretToken = init.secretToken;
-                return loadHelcimPayScript();
-            })
-            .then(function () {
-                window.appendHelcimPayIframe(checkoutToken);
-                return waitForHelcimResult(checkoutToken);
-            })
-            .then(function (eventMessage) {
-                return restPost('/confirm', {
-                    rawDataResponse: eventMessage.data || eventMessage,
-                    checkoutToken: checkoutToken,
-                    secretToken: secretToken,
-                });
-            });
-    }
-
-    function runFakeFlow() {
-        return restPost('/init', {}).then(function () {
-            return restPost('/confirm', {});
-        });
-    }
-
-    function Content(props) {
-        var stateHook = useState('idle'); // idle | working | ready | error
-        var status = stateHook[0];
-        var setStatus = stateHook[1];
-        var errorHook = useState('');
-        var error = errorHook[0];
-        var setError = errorHook[1];
-
-        useEffect(
-            function () {
-                var unsubscribe = props.eventRegistration.onPaymentSetup(function () {
-                    if (status !== 'ready') {
-                        return {
-                            type: props.emitResponse.responseTypes.ERROR,
-                            message: 'Please complete card entry before placing your order.',
-                        };
-                    }
-                    return { type: props.emitResponse.responseTypes.SUCCESS };
-                });
-                return unsubscribe;
-            },
-            [status, props.eventRegistration, props.emitResponse]
-        );
-
-        function handleClick() {
-            setStatus('working');
-            setError('');
-            var flow = settings.fakeMode ? runFakeFlow() : runRealFlow();
-            flow
-                .then(function () {
-                    setStatus('ready');
-                })
-                .catch(function (e) {
-                    setStatus('error');
-                    setError(e.message);
-                });
-        }
-
-        return el(
-            'div',
-            { className: 'bsc-helcim-payment-method' },
-            settings.description ? el('p', {}, settings.description) : null,
-            status === 'ready'
-                ? el('p', {}, '✓ Card authorized — ready to place order.')
-                : el(
-                      'button',
-                      { type: 'button', onClick: handleClick, disabled: status === 'working' },
-                      status === 'working'
-                          ? 'Verifying card…'
-                          : settings.fakeMode
-                          ? 'Simulate card entry (dev/fake mode)'
-                          : 'Enter card details'
-                  ),
-            error ? el('p', { style: { color: 'red' } }, error) : null
-        );
-    }
-
-    registerPaymentMethod({
-        name: 'bsc_helcim',
-        label: label,
-        content: el(Content),
-        edit: el(Content),
-        canMakePayment: function () {
-            return true;
-        },
-        ariaLabel: label,
-        supports: {
-            features: ['products'],
-        },
-    });
-})();
diff --git a/wp-content/plugins/bookstore-core/bookstore-core.php b/wp-content/plugins/bookstore-core/bookstore-core.php
index c9af1c2..c28d6ee 100644
--- a/wp-content/plugins/bookstore-core/bookstore-core.php
+++ b/wp-content/plugins/bookstore-core/bookstore-core.php
@@ -4,7 +4,7 @@
  * Description: Owns catalog, pricing, supplier routing, and order-state business logic for the bookstore. See docs/ for the technical design document.
  * Version: 0.2.0
  * Requires PHP: 8.1
- * Requires Plugins: woocommerce
+ * Requires Plugins: woocommerce, woocommerce-gateway-stripe
  * Author: Bookstore
  */
 
@@ -51,7 +51,6 @@ register_activation_hook(__FILE__, function () {
 
 add_action('plugins_loaded', function () {
     \Bookstore\Core\Schema::maybe_upgrade();
-    \Bookstore\Core\Payments\HelcimGatewayConfig::ensure_configured_from_env();
 });
 
 add_filter('woocommerce_shipping_methods', function (array $methods) {
@@ -59,22 +58,6 @@ add_filter('woocommerce_shipping_methods', function (array $methods) {
     return $methods;
 });
 
-// Preauth-then-capture payment flow against HelcimPay.js directly —
-// design doc Appendix B's revised decision (see includes/Payments/).
-// Replaces the off-the-shelf helcim-commerce-for-woocommerce plugin's
-// immediate-charge gateway, not just adds to it — see deploy.sh, which
-// no longer installs that plugin.
-add_filter('woocommerce_payment_gateways', function (array $gateways) {
-    $gateways[] = \Bookstore\Core\Payments\HelcimGateway::class;
-    return $gateways;
-});
-
-add_action('woocommerce_blocks_payment_method_type_registration', function ($registry) {
-    $registry->register(new \Bookstore\Core\Payments\HelcimBlocksIntegration());
-});
-
-\Bookstore\Core\Payments\CheckoutController::register();
-
 // Membership tiers/benefits: design doc §07 extension (see includes/Membership/).
 \Bookstore\Core\Membership\MemberDiscount::register();
 \Bookstore\Core\Membership\Registration::register();
diff --git a/wp-content/plugins/bookstore-core/includes/Membership/Tier.php b/wp-content/plugins/bookstore-core/includes/Membership/Tier.php
index e777738..765ea64 100644
--- a/wp-content/plugins/bookstore-core/includes/Membership/Tier.php
+++ b/wp-content/plugins/bookstore-core/includes/Membership/Tier.php
@@ -198,7 +198,7 @@ class Tier
      * Seeds guest/free_member with today's real defaults — only if
      * missing by slug, so a human's later edits via the CLI/settings
      * screen are never clobbered on a later plugins_loaded (same
-     * never-overwrite convention as Payments\HelcimGatewayConfig).
+     * never-overwrite convention used by other environment-seeded settings).
      */
     public static function seed_defaults(): void
     {
diff --git a/wp-content/plugins/bookstore-core/includes/Order/CheckoutRecheck.php b/wp-content/plugins/bookstore-core/includes/Order/CheckoutRecheck.php
index b1c7162..8e1dbb9 100644
--- a/wp-content/plugins/bookstore-core/includes/Order/CheckoutRecheck.php
+++ b/wp-content/plugins/bookstore-core/includes/Order/CheckoutRecheck.php
@@ -2,10 +2,6 @@
 
 namespace Bookstore\Core\Order;
 
-use Bookstore\Core\Payments\CheckoutSession;
-use Bookstore\Core\Payments\HelcimApiException;
-use Bookstore\Core\Payments\HelcimClient;
-use Bookstore\Core\Payments\HelcimGateway;
 use Bookstore\Core\Pricing\PricingEngine;
 
 defined('ABSPATH') || exit;
@@ -13,14 +9,9 @@ defined('ABSPATH') || exit;
 /**
  * Appendix B (revised for the preauth-then-capture rework): "Supplier
  * stock, price, and margin are rechecked live, synchronously,
- * immediately before the customer's card is authorized (held)." The
- * fraud check moved out of run_checks() and into
- * Payments\HelcimGateway::process_payment() — it now runs *after* the
- * preauth exists rather than before, per the new checkout -> preauth ->
- * fraud review -> supplier order -> capture sequence. This class still
- * owns price/margin only, and (new) reversing any preauth that's
- * already been taken if that recheck fails here — see the "wrinkle"
- * note on validate_order_before_payment() below.
+ * immediately before the customer's card is authorized (held)." Fraud
+ * review runs after Stripe places the order on hold. This class owns the
+ * pre-payment price and margin validation only.
  *
  * Two checkout implementations, two different hook sets — confirmed by
  * reading wp-content/plugins/woocommerce/src/StoreApi/Routes/V1/Checkout.php
@@ -144,12 +135,6 @@ class CheckoutRecheck
      * guards — see that class), which is what the design doc's "duplicate
      * webhook/job... do not double-order" requirement is actually about.
      *
-     * New wrinkle from the preauth rework: by the time this hook fires,
-     * the customer has already completed a preauth via the Blocks
-     * checkout JS (Payments\HelcimGateway isn't invoked yet — that only
-     * happens after this hook passes). If the recheck fails here, that
-     * hold is real and live but process_payment() will never run to
-     * clean it up — so run_checks()'s failure path reverses it directly.
      */
     public static function validate_order_before_payment(\WC_Order $order, \WP_Error $validation_errors): void
     {
@@ -174,8 +159,8 @@ class CheckoutRecheck
     /**
      * Shared by both checkout implementations. Returns null on success
      * (audit rows already written) or a customer-facing failure message
-     * (order already routed to the exception status, any preauth already
-     * reversed) on failure. Audit rows are only ever inserted after every
+     * (order already routed to the exception status) on failure. Audit rows
+     * are only ever inserted after every
      * item has passed — never partially, which matters because a failed
      * attempt can be resubmitted against the same draft order under
      * Blocks checkout.
@@ -195,14 +180,13 @@ class CheckoutRecheck
             $quoted_unit = (float) $item->get_total() / $quantity;
 
             if (!$recheck || $recheck->price > $quoted_unit + self::PRICE_CUSHION) {
-                self::reverse_pending_preauth();
                 self::route_to_exception($order, sprintf(
                     'Supplier/margin recheck failed for "%s" at order-finalize (was quoted $%.2f, fresh price $%.2f).',
                     $item->get_name(),
                     $quoted_unit,
                     $recheck->price ?? 0.0
                 ));
-                return 'Sorry, part of your order is no longer available at its listed price. Any card hold has been released — please try again.';
+                return 'Sorry, part of your order is no longer available at its listed price. Please try again.';
             }
 
             $offer = $recheck->offer;
@@ -232,28 +216,6 @@ class CheckoutRecheck
         return null;
     }
 
-    /**
-     * Fraud check already ran (Payments\HelcimGateway::process_payment(),
-     * after the preauth) by the time price/margin ever gets a chance to
-     * fail here — this only fires when the preauth exists but the recheck
-     * itself fails first. Best-effort: nothing was ever charged either
-     * way, and an unreversed hold just expires on its own within Helcim's
-     * 7-day window if this call fails.
-     */
-    private static function reverse_pending_preauth(): void
-    {
-        $pending = CheckoutSession::pending_preauth();
-        if (!$pending) {
-            return;
-        }
-        CheckoutSession::clear_pending_preauth();
-        try {
-            HelcimClient::reverse($pending['preauth_transaction_id'], HelcimGateway::client_ip());
-        } catch (HelcimApiException $e) {
-            error_log('bsc_helcim: reverse failed after a failed price/margin recheck: ' . $e->getMessage());
-        }
-    }
-
     private static function route_to_exception(\WC_Order $order, string $reason): void
     {
         $order->update_status(OrderStatuses::EXCEPTION, $reason);
diff --git a/wp-content/plugins/bookstore-core/includes/Order/SupplierOrderJob.php b/wp-content/plugins/bookstore-core/includes/Order/SupplierOrderJob.php
index acbab78..5184489 100644
--- a/wp-content/plugins/bookstore-core/includes/Order/SupplierOrderJob.php
+++ b/wp-content/plugins/bookstore-core/includes/Order/SupplierOrderJob.php
@@ -3,9 +3,7 @@
 namespace Bookstore\Core\Order;
 
 use Bookstore\Core\Catalog\SupplierOffer;
-use Bookstore\Core\Payments\HelcimApiException;
-use Bookstore\Core\Payments\HelcimClient;
-use Bookstore\Core\Payments\HelcimGateway;
+use Bookstore\Core\Payments\FraudCheck;
 
 defined('ABSPATH') || exit;
 
@@ -20,24 +18,42 @@ defined('ABSPATH') || exit;
  * safely via queue; do not double-order" idempotency requirement actually
  * lives, ahead of Week 4 needing it for real.
  *
- * Preauth-then-capture rework: this class now runs BEFORE the card is
- * actually charged, not after. It triggers on the order reaching
- * Order\OrderStatuses::AUTHORIZED (preauth held, fraud check already
- * passed — Payments\HelcimGateway) rather than woocommerce_payment_complete.
- * A successful supplier submission captures the held funds for the first
- * time (payment_complete() only fires here now, at capture); a failed one
- * reverses the hold instead of refunding a charge that was never made —
- * the whole point of this rework, replacing Appendix B's accepted
- * "refund, lose the processing fee" risk with a genuinely zero-cost void.
+ * The official WooCommerce Stripe gateway creates an On hold order when
+ * manual capture is enabled. We fraud-check that authorized order, move it
+ * into the bookstore's Authorized state, and submit it to the supplier.
+ * Moving a successful order to Processing asks the Stripe plugin to capture
+ * the authorization; cancelling a failed one asks Stripe to release it.
  */
 class SupplierOrderJob
 {
     public static function register(): void
     {
+        add_action('woocommerce_order_status_on-hold', [self::class, 'accept_stripe_authorization']);
         add_action('woocommerce_order_status_' . OrderStatuses::AUTHORIZED, [self::class, 'schedule_for_order']);
         add_action('bsc_submit_supplier_order', [self::class, 'run']);
     }
 
+    /** Promote only manually authorized orders from the official Stripe gateway. */
+    public static function accept_stripe_authorization(int $order_id): void
+    {
+        $order = wc_get_order($order_id);
+        if (
+            !$order
+            || !self::is_stripe_order($order)
+            || $order->get_meta('_stripe_charge_captured') !== 'no'
+        ) {
+            return;
+        }
+
+        $fraud = FraudCheck::run($order);
+        if (!$fraud['pass']) {
+            self::fail_and_release($order, 'Fraud check failed: ' . $fraud['reason']);
+            return;
+        }
+
+        $order->update_status(OrderStatuses::AUTHORIZED, 'Stripe authorized the payment; awaiting supplier confirmation.');
+    }
+
     /**
      * WooCommerce's per-status transition hooks can fire more than once
      * for the same order (e.g. a status re-saved without actually
@@ -105,11 +121,9 @@ class SupplierOrderJob
     }
 
     /**
-     * The supplier order just succeeded — this is the first point the
-     * card is actually charged. Captures the preauth held since checkout,
-     * then calls WC's own payment_complete() (which now fires
-     * woocommerce_payment_complete for real, restoring that hook's
-     * original meaning) before moving to Supplier Ordered.
+     * The supplier order just succeeded — this is the first point the card
+     * is actually charged. The official Stripe plugin captures when an
+     * on-hold/manual-capture order transitions to Processing.
      *
      * Capture failing here (card expired/declined during the hold window
      * — rare, but real) is its own distinct failure mode from a supplier-
@@ -122,42 +136,38 @@ class SupplierOrderJob
      */
     private static function capture_and_complete(\WC_Order $order): void
     {
-        $preauth_id = (int) $order->get_meta('_bsc_preauth_transaction_id');
-        $amount = (float) $order->get_total();
+        $order->update_status('processing', 'Supplier confirmed; requesting Stripe capture.');
 
-        try {
-            $capture = HelcimClient::capture($preauth_id, $amount, HelcimGateway::client_ip());
-        } catch (HelcimApiException $e) {
-            $order->update_status(
-                OrderStatuses::EXCEPTION,
-                "Supplier order succeeded but capture failed ({$e->getMessage()}) — needs manual follow-up, do not resubmit to the supplier."
-            );
+        // Stripe's capture hook is synchronous and persists this flag. Reload
+        // so a failed capture cannot be mistaken for a successful transition.
+        $order = wc_get_order($order->get_id());
+        if (!$order || $order->get_meta('_stripe_charge_captured') !== 'yes') {
+            if ($order) {
+                $order->update_status(
+                    OrderStatuses::EXCEPTION,
+                    'Supplier order succeeded but Stripe capture was not confirmed — needs manual follow-up; do not resubmit to the supplier.'
+                );
+            }
             return;
         }
 
-        $order->payment_complete((string) ($capture['transactionId'] ?? $preauth_id));
-        $order->update_status(OrderStatuses::SUPPLIER_ORDERED);
+        $order->update_status(OrderStatuses::SUPPLIER_ORDERED, 'Stripe payment captured.');
     }
 
     /**
-     * Appendix B's residual risk ("a charge that later needs to be
-     * undone becomes a refund... the store loses only the processing
-     * fee") is exactly what this rework was for: nothing has been
-     * charged yet at this point, so a failed supplier order releases the
-     * hold instead — genuinely zero cost, not "only the processing fee."
+     * Nothing has been charged yet. The Stripe extension releases an
+     * uncaptured authorization when the order becomes Cancelled.
      */
     private static function fail_and_release(\WC_Order $order, string $reason): void
     {
-        $order->update_status(OrderStatuses::EXCEPTION, $reason);
+        $order->update_status('cancelled', $reason . ' Releasing the Stripe authorization.');
+        AuditTrail::record_void($order->get_id());
+        $order->update_status(OrderStatuses::EXCEPTION, 'Stripe authorization release requested; order requires review.');
+    }
 
-        $preauth_id = (int) $order->get_meta('_bsc_preauth_transaction_id');
-        try {
-            HelcimClient::reverse($preauth_id, HelcimGateway::client_ip());
-            AuditTrail::record_void($order->get_id());
-        } catch (HelcimApiException $e) {
-            $order->add_order_note(
-                'Could not release the card hold (' . $e->getMessage() . ') — it will expire on its own within 7 days; no manual refund needed.'
-            );
-        }
+    private static function is_stripe_order(\WC_Order $order): bool
+    {
+        $method = $order->get_payment_method();
+        return $method === 'stripe' || str_starts_with($method, 'stripe_');
     }
 }
diff --git a/wp-content/plugins/bookstore-core/includes/Payments/CheckoutController.php b/wp-content/plugins/bookstore-core/includes/Payments/CheckoutController.php
deleted file mode 100644
index 0b8187b..0000000
--- a/wp-content/plugins/bookstore-core/includes/Payments/CheckoutController.php
+++ /dev/null
@@ -1,152 +0,0 @@
-<?php
-
-namespace Bookstore\Core\Payments;
-
-defined('ABSPATH') || exit;
-
-/**
- * The two REST endpoints the Blocks checkout JS (assets/js/helcim-checkout-block.js)
- * calls to get a validated preauth before the WooCommerce order is even
- * submitted — see Payments\CheckoutSession's docblock for why this has
- * to happen before order creation rather than inside process_payment().
- *
- * init: server-side call to HelcimClient::initialize_checkout() (keeps
- * the API token off the client entirely) for the current cart total;
- * returns checkoutToken + secretToken to the client — this matches
- * Helcim's own documented HelcimPay.js pattern (their reference
- * validateResponse() example sends secretToken back to your endpoint
- * alongside the raw transaction response, rather than keeping it purely
- * server-side), not a deviation from it.
- * confirm: the client forwards {rawDataResponse, checkoutToken,
- * secretToken} here after HelcimPay.js's iframe completes (or, in fake
- * mode, after clicking "Simulate card entry"). Hash validation per
- * Helcim's documented algorithm: sha256(json_encode(rawDataResponse) .
- * secretToken), compared against the response's own hash field — the
- * exact field Helcim compares it to wasn't shown verbatim in what's
- * accessible without a real sandbox account, so this is a best-effort
- * implementation of their documented algorithm, not independently
- * confirmed against a real transaction yet.
- */
-class CheckoutController
-{
-    public static function register(): void
-    {
-        add_action('rest_api_init', [self::class, 'register_routes']);
-    }
-
-    public static function register_routes(): void
-    {
-        register_rest_route('bsc/v1', '/helcim/init', [
-            'methods' => 'POST',
-            'callback' => [self::class, 'init'],
-            'permission_callback' => '__return_true',
-        ]);
-
-        register_rest_route('bsc/v1', '/helcim/confirm', [
-            'methods' => 'POST',
-            'callback' => [self::class, 'confirm'],
-            'permission_callback' => '__return_true',
-        ]);
-    }
-
-    /**
-     * Confirmed directly (live testing): a plain register_rest_route()
-     * callback does NOT get WC()->cart/WC()->session populated from the
-     * customer's session cookie the way WooCommerce's own Store API
-     * routes do (their cart endpoint saw the item; this one reported
-     * "Cart is empty" for the identical session/cookie). wc_load_cart()
-     * is WooCommerce's own documented fix for exactly this — background/
-     * REST/AJAX contexts outside the normal front-end bootstrap that
-     * still need the real session-backed cart.
-     */
-    private static function ensure_cart_loaded(): void
-    {
-        if (function_exists('wc_load_cart')) {
-            wc_load_cart();
-        }
-        // Confirmed directly (live testing): a freshly wc_load_cart()'d
-        // cart's ->get_total('edit') reads 0 until something triggers its
-        // lazy total calculation — is_empty()/get_cart() happen to do
-        // this as a side effect, which is why init() (checks is_empty()
-        // first) got the right amount but confirm() (reads the total as
-        // its first cart touch) silently got 0. Calculating explicitly
-        // here removes the dependency on that incidental ordering.
-        if (WC()->cart) {
-            WC()->cart->calculate_totals();
-        }
-    }
-
-    public static function init(\WP_REST_Request $request): \WP_REST_Response
-    {
-        self::ensure_cart_loaded();
-
-        if (!WC()->cart || WC()->cart->is_empty()) {
-            return new \WP_REST_Response(['error' => 'Cart is empty.'], 400);
-        }
-
-        $amount = (float) WC()->cart->get_total('edit');
-
-        try {
-            $result = HelcimClient::initialize_checkout($amount, get_woocommerce_currency(), 'preauth');
-        } catch (HelcimApiException $e) {
-            return new \WP_REST_Response(['error' => $e->getMessage()], 502);
-        }
-
-        return new \WP_REST_Response([
-            'checkoutToken' => $result['checkoutToken'],
-            'secretToken' => $result['secretToken'] ?? null,
-            'amount' => $amount,
-            'fakeMode' => !empty($result['fake']),
-        ]);
-    }
-
-    public static function confirm(\WP_REST_Request $request): \WP_REST_Response
-    {
-        self::ensure_cart_loaded();
-        $amount = (float) WC()->cart->get_total('edit');
-
-        if (!HelcimGatewayConfig::is_configured()) {
-            $transaction = [
-                'transactionId' => random_int(900000000, 999999999),
-                'status' => 'APPROVED',
-                'cardToken' => 'fake_card_token_' . wp_generate_uuid4(),
-            ];
-        } else {
-            $raw = $request->get_param('rawDataResponse');
-            $secret = (string) $request->get_param('secretToken');
-            $transaction = is_array($raw) ? $raw : json_decode((string) $raw, true);
-
-            if (!is_array($transaction) || !self::hash_is_valid($transaction, $secret)) {
-                return new \WP_REST_Response(['error' => 'Could not validate the payment result.'], 400);
-            }
-            if (empty($transaction['transactionId']) || ($transaction['status'] ?? '') !== 'APPROVED') {
-                return new \WP_REST_Response(['error' => 'Payment was not approved.'], 400);
-            }
-        }
-
-        CheckoutSession::stash_pending_preauth([
-            'preauth_transaction_id' => (int) $transaction['transactionId'],
-            'card_token' => $transaction['cardToken'] ?? null,
-            'amount' => $amount,
-        ]);
-
-        return new \WP_REST_Response(['ok' => true]);
-    }
-
-    /**
-     * Helcim's documented algorithm: sha256(json_encode(transaction data)
-     * . secretToken), compared against the response's own hash field —
-     * see this class's docblock for the "not independently confirmed
-     * against a real transaction yet" caveat.
-     */
-    private static function hash_is_valid(array $transaction, string $secret): bool
-    {
-        if (empty($transaction['hash']) || $secret === '') {
-            return false;
-        }
-        $data = $transaction;
-        unset($data['hash']);
-        $expected = hash('sha256', wp_json_encode($data) . $secret);
-        return hash_equals($expected, (string) $transaction['hash']);
-    }
-}
diff --git a/wp-content/plugins/bookstore-core/includes/Payments/CheckoutSession.php b/wp-content/plugins/bookstore-core/includes/Payments/CheckoutSession.php
deleted file mode 100644
index 066a69a..0000000
--- a/wp-content/plugins/bookstore-core/includes/Payments/CheckoutSession.php
+++ /dev/null
@@ -1,51 +0,0 @@
-<?php
-
-namespace Bookstore\Core\Payments;
-
-defined('ABSPATH') || exit;
-
-/**
- * The preauth has to exist before the WooCommerce order does (the
- * customer is present entering card details in the HelcimPay.js iframe
- * before submitting checkout), but Order\CheckoutRecheck's price/margin
- * validation still runs after that, right before process_payment() — if
- * it fails there, a live uncaptured hold already exists and must be
- * reversed even though process_payment() is never reached. A short-lived
- * transient, keyed by the same customer-session identity
- * Order\CheckoutRecheck::lock_key() already uses for its advisory lock,
- * is what lets both HelcimGateway::process_payment() and
- * CheckoutRecheck's failure path find (and clear) the same pending
- * preauth regardless of which one runs first.
- */
-class CheckoutSession
-{
-    private const TTL = 20 * MINUTE_IN_SECONDS;
-
-    public static function identity(): string
-    {
-        return WC()->session ? (string) WC()->session->get_customer_id() : (string) session_id();
-    }
-
-    public static function transient_key(): string
-    {
-        return 'bsc_preauth_' . md5(self::identity());
-    }
-
-    /** @param array{preauth_transaction_id:int, card_token:?string, amount:float} $data */
-    public static function stash_pending_preauth(array $data): void
-    {
-        set_transient(self::transient_key(), $data, self::TTL);
-    }
-
-    /** @return array{preauth_transaction_id:int, card_token:?string, amount:float}|null */
-    public static function pending_preauth(): ?array
-    {
-        $data = get_transient(self::transient_key());
-        return is_array($data) ? $data : null;
-    }
-
-    public static function clear_pending_preauth(): void
-    {
-        delete_transient(self::transient_key());
-    }
-}
diff --git a/wp-content/plugins/bookstore-core/includes/Payments/FraudCheck.php b/wp-content/plugins/bookstore-core/includes/Payments/FraudCheck.php
index a421803..74bd8b6 100644
--- a/wp-content/plugins/bookstore-core/includes/Payments/FraudCheck.php
+++ b/wp-content/plugins/bookstore-core/includes/Payments/FraudCheck.php
@@ -5,18 +5,15 @@ namespace Bookstore\Core\Payments;
 defined('ABSPATH') || exit;
 
 /**
- * Design doc §05: "local WooCommerce fraud checks plus Helcim's
- * payment-side risk signals." Deliberately a no-op by default for Week 3
+ * Design doc §05 local WooCommerce fraud-check extension point. It is a
+ * no-op by default for Week 3
  * — the user has decided not to build custom fraud heuristics now, only
  * the extension point an optional paid plugin (Shop Defender) plugs into
  * later via add_filter('bsc_fraud_check_result', ...). The step still
  * runs and is logged on every order, unconditionally, so "Fraud Check" is
  * a real, auditable stage in the state machine rather than an absent one.
- * Called from HelcimGateway::process_payment(), right after the card is
- * preauthorized (held) but before the order is allowed to proceed to
- * Authorized status — moved here from Order\CheckoutRecheck by the
- * preauth-then-capture rework: fraud review now runs after the hold
- * exists, not before, per design doc Appendix B's revised sequence.
+ * Called after Stripe authorizes the card and places the order on hold,
+ * before the order proceeds to supplier submission.
  */
 class FraudCheck
 {
diff --git a/wp-content/plugins/bookstore-core/includes/Payments/HelcimApiException.php b/wp-content/plugins/bookstore-core/includes/Payments/HelcimApiException.php
deleted file mode 100644
index d682bcb..0000000
--- a/wp-content/plugins/bookstore-core/includes/Payments/HelcimApiException.php
+++ /dev/null
@@ -1,9 +0,0 @@
-<?php
-
-namespace Bookstore\Core\Payments;
-
-defined('ABSPATH') || exit;
-
-class HelcimApiException extends \RuntimeException
-{
-}
diff --git a/wp-content/plugins/bookstore-core/includes/Payments/HelcimBlocksIntegration.php b/wp-content/plugins/bookstore-core/includes/Payments/HelcimBlocksIntegration.php
deleted file mode 100644
index 40bf99a..0000000
--- a/wp-content/plugins/bookstore-core/includes/Payments/HelcimBlocksIntegration.php
+++ /dev/null
@@ -1,64 +0,0 @@
-<?php
-
-namespace Bookstore\Core\Payments;
-
-use Automattic\WooCommerce\Blocks\Payments\Integrations\AbstractPaymentMethodType;
-
-defined('ABSPATH') || exit;
-
-/**
- * Blocks/Store API side of Payments\HelcimGateway — this store only
- * serves Cart/Checkout blocks (confirmed live, no shortcode checkout
- * exists — see Order\CheckoutRecheck's docblock), so a plain
- * WC_Payment_Gateway alone isn't enough to show up at checkout; it also
- * needs registering here plus a matching JS bundle
- * (assets/js/helcim-checkout-block.js) via
- * wc.wcBlocksRegistry.registerPaymentMethod. process_payment() on the
- * gateway itself is still what actually runs server-side — this class
- * only handles the block rendering/script-enqueueing side.
- */
-class HelcimBlocksIntegration extends AbstractPaymentMethodType
-{
-    protected $name = 'bsc_helcim';
-
-    public function initialize(): void
-    {
-        $this->settings = get_option(HelcimGatewayConfig::OPTION_NAME, []);
-    }
-
-    public function is_active(): bool
-    {
-        return ($this->settings['enabled'] ?? 'no') === 'yes';
-    }
-
-    public function get_payment_method_script_handles(): array
-    {
-        $asset_path = BSC_PLUGIN_DIR . 'assets/js/helcim-checkout-block.js';
-
-        wp_register_script(
-            'bsc-helcim-checkout-block',
-            plugins_url('assets/js/helcim-checkout-block.js', BSC_PLUGIN_FILE),
-            ['wc-blocks-registry', 'wc-settings', 'wp-element', 'wp-i18n'],
-            file_exists($asset_path) ? (string) filemtime($asset_path) : BSC_VERSION,
-            true
-        );
-
-        wp_localize_script('bsc-helcim-checkout-block', 'bscHelcimData', [
-            'title' => $this->settings['title'] ?? 'Credit Card',
-            'description' => $this->settings['description'] ?? '',
-            'restUrl' => esc_url_raw(rest_url('bsc/v1/helcim')),
-            'nonce' => wp_create_nonce('wp_rest'),
-            'fakeMode' => !HelcimGatewayConfig::is_configured(),
-        ]);
-
-        return ['bsc-helcim-checkout-block'];
-    }
-
-    public function get_payment_method_data(): array
-    {
-        return [
-            'title' => $this->settings['title'] ?? 'Credit Card',
-            'description' => $this->settings['description'] ?? '',
-        ];
-    }
-}
diff --git a/wp-content/plugins/bookstore-core/includes/Payments/HelcimClient.php b/wp-content/plugins/bookstore-core/includes/Payments/HelcimClient.php
deleted file mode 100644
index 382c4e9..0000000
--- a/wp-content/plugins/bookstore-core/includes/Payments/HelcimClient.php
+++ /dev/null
@@ -1,123 +0,0 @@
-<?php
-
-namespace Bookstore\Core\Payments;
-
-defined('ABSPATH') || exit;
-
-/**
- * Thin wrapper around Helcim's Payment API (devdocs.helcim.com), built
- * directly against HelcimPay.js/the raw API rather than the off-the-shelf
- * helcim-commerce-for-woocommerce plugin — see design doc Appendix B's
- * revised decision. Endpoints/parameters confirmed against Helcim's
- * current developer docs:
- *   - POST /v2/helcim-pay/initialize {paymentType, amount, currency}
- *     -> {checkoutToken, secretToken}
- *   - POST /v2/payment/capture {preAuthTransactionId, amount, ipAddress}
- *     -> transaction object (incl. cardToken, transactionId)
- *   - POST /v2/payment/reverse {cardTransactionId, ipAddress}
- *     -> transaction object
- * Capture/reverse's exact base path (the /v2 prefix specifically) was
- * not shown alongside their parameter docs the way initialize's was —
- * confirm against a real sandbox call before this is ever used in
- * anything but fake mode.
- *
- * FAKE MODE: HelcimGatewayConfig::is_configured() is false until a real
- * token exists (none does yet, pre-launch). Rather than blocking all
- * development on getting Helcim sandbox access, every method here
- * returns a synthetic approved response when unconfigured — same
- * pattern this project already uses on the supplier side before real
- * BooksRun access existed (Import\SyntheticOfferGenerator, the
- * gutenberg_test supplier). This lets the entire checkout -> preauth ->
- * fraud -> supplier -> capture/reverse flow be driven for real through
- * the WooCommerce/Blocks plumbing in dev today. The instant a real token
- * lands in HELCIM_API_TOKEN, every call here switches to hitting the
- * real API — no code change required anywhere.
- */
-class HelcimClient
-{
-    private const API_BASE = 'https://api.helcim.com/v2';
-
-    public static function initialize_checkout(float $amount, string $currency, string $payment_type): array
-    {
-        if (!HelcimGatewayConfig::is_configured()) {
-            return [
-                'checkoutToken' => 'fake_checkout_' . wp_generate_uuid4(),
-                'secretToken' => 'fake_secret_' . wp_generate_uuid4(),
-                'fake' => true,
-            ];
-        }
-
-        return self::post('/helcim-pay/initialize', [
-            'paymentType' => $payment_type,
-            'amount' => $amount,
-            'currency' => $currency,
-        ], with_idempotency_key: false);
-    }
-
-    public static function capture(int $preauth_transaction_id, float $amount, string $ip_address): array
-    {
-        if (!HelcimGatewayConfig::is_configured()) {
-            return self::fake_transaction_response($amount);
-        }
-
-        return self::post('/payment/capture', [
-            'preAuthTransactionId' => $preauth_transaction_id,
-            'amount' => $amount,
-            'ipAddress' => $ip_address,
-        ], with_idempotency_key: true);
-    }
-
-    public static function reverse(int $transaction_id, string $ip_address): array
-    {
-        if (!HelcimGatewayConfig::is_configured()) {
-            return self::fake_transaction_response(0.0);
-        }
-
-        return self::post('/payment/reverse', [
-            'cardTransactionId' => $transaction_id,
-            'ipAddress' => $ip_address,
-        ], with_idempotency_key: true);
-    }
-
-    private static function fake_transaction_response(float $amount): array
-    {
-        return [
-            'transactionId' => random_int(900000000, 999999999),
-            'status' => 'APPROVED',
-            'amount' => $amount,
-            'cardToken' => 'fake_card_token_' . wp_generate_uuid4(),
-            'fake' => true,
-        ];
-    }
-
-    private static function post(string $path, array $body, bool $with_idempotency_key): array
-    {
-        $token = HelcimGatewayConfig::token();
-        $headers = ['api-token' => $token, 'Content-Type' => 'application/json'];
-        if ($with_idempotency_key) {
-            $headers['idempotency-key'] = wp_generate_uuid4();
-        }
-
-        $response = wp_remote_post(self::API_BASE . $path, [
-            'headers' => $headers,
-            'body' => wp_json_encode($body),
-            'timeout' => 30,
-        ]);
-
-        if (is_wp_error($response)) {
-            throw new HelcimApiException('Helcim API request failed: ' . $response->get_error_message());
-        }
-
-        $code = wp_remote_retrieve_response_code($response);
-        $decoded = json_decode(wp_remote_retrieve_body($response), true);
-
-        if ($code < 200 || $code >= 300 || !is_array($decoded) || !empty($decoded['errors'])) {
-            $message = is_array($decoded) && !empty($decoded['errors'])
-                ? implode('; ', (array) $decoded['errors'])
-                : "unexpected HTTP {$code}";
-            throw new HelcimApiException("Helcim API error on {$path}: {$message}");
-        }
-
-        return $decoded;
-    }
-}
diff --git a/wp-content/plugins/bookstore-core/includes/Payments/HelcimGateway.php b/wp-content/plugins/bookstore-core/includes/Payments/HelcimGateway.php
deleted file mode 100644
index a2e5670..0000000
--- a/wp-content/plugins/bookstore-core/includes/Payments/HelcimGateway.php
+++ /dev/null
@@ -1,127 +0,0 @@
-<?php
-
-namespace Bookstore\Core\Payments;
-
-use Bookstore\Core\Order\OrderStatuses;
-
-defined('ABSPATH') || exit;
-
-/**
- * Custom WC_Payment_Gateway against HelcimPay.js directly (id
- * `bsc_helcim`) — replaces the off-the-shelf helcim-commerce-for-
- * woocommerce plugin's immediate-charge flow. See design doc Appendix
- * B's revised decision and Payments\HelcimClient's docblock (fake mode).
- *
- * process_payment() does NOT charge the card. By the time it runs, the
- * customer has already completed a preauth via the Blocks checkout JS
- * (assets/js/helcim-checkout-block.js) — Payments\CheckoutController's
- * /confirm endpoint already validated it and stashed it in
- * Payments\CheckoutSession. This method's job is: pick up that pending
- * preauth, run the (moved-here) fraud check, and either reverse the hold
- * and route to review, or mark the order Authorized and let
- * Order\SupplierOrderJob take it from there — capture only happens
- * after a successful supplier order.
- */
-class HelcimGateway extends \WC_Payment_Gateway
-{
-    public function __construct()
-    {
-        $this->id = 'bsc_helcim';
-        $this->method_title = 'Helcim (preauth/capture)';
-        $this->method_description = 'Card is held (preauth) at checkout and only captured once the supplier order succeeds — see design doc Appendix B.';
-        $this->has_fields = false;
-        $this->supports = ['products'];
-
-        $this->init_form_fields();
-        $this->init_settings();
-
-        $this->title = $this->get_option('title', 'Credit Card');
-        $this->description = $this->get_option('description', '');
-        $this->enabled = $this->get_option('enabled', 'no');
-
-        add_action('woocommerce_update_options_payment_gateways_' . $this->id, [$this, 'process_admin_options']);
-    }
-
-    public function init_form_fields(): void
-    {
-        $this->form_fields = [
-            'enabled' => [
-                'title' => 'Enable/Disable',
-                'type' => 'checkbox',
-                'label' => 'Enable this payment method',
-                'default' => 'no',
-            ],
-            'title' => [
-                'title' => 'Title',
-                'type' => 'text',
-                'default' => 'Credit Card',
-            ],
-            'description' => [
-                'title' => 'Description',
-                'type' => 'textarea',
-                'default' => '',
-            ],
-            'environment' => [
-                'title' => 'Environment',
-                'type' => 'select',
-                'options' => ['sandbox' => 'Sandbox', 'live' => 'Live'],
-                'default' => 'sandbox',
-            ],
-        ];
-    }
-
-    public function process_payment($order_id): array
-    {
-        $order = wc_get_order($order_id);
-        $pending = CheckoutSession::pending_preauth();
-
-        if (!$order || !$pending) {
-            wc_add_notice('Your payment session expired — please try again.', 'error');
-            return ['result' => 'failure'];
-        }
-
-        CheckoutSession::clear_pending_preauth();
-
-        $order->update_meta_data('_bsc_preauth_transaction_id', $pending['preauth_transaction_id']);
-        $order->update_meta_data('_bsc_preauth_card_token', $pending['card_token']);
-        $order->update_meta_data('_bsc_preauth_amount', $pending['amount']);
-        $order->save();
-
-        $fraud = FraudCheck::run($order);
-        if (!$fraud['pass']) {
-            $this->reverse_preauth($pending['preauth_transaction_id'], "Fraud check failed: {$fraud['reason']}");
-            $order->update_status(OrderStatuses::EXCEPTION, "Fraud check failed: {$fraud['reason']}");
-            wc_add_notice('Your order could not be processed and has been placed under review. Your card was not charged.', 'error');
-            return ['result' => 'failure'];
-        }
-
-        $order->update_status(OrderStatuses::AUTHORIZED, 'Card authorized (preauth held) — not yet charged.');
-
-        return [
-            'result' => 'success',
-            'redirect' => $this->get_return_url($order),
-        ];
-    }
-
-    private function reverse_preauth(int $preauth_transaction_id, string $reason): void
-    {
-        try {
-            HelcimClient::reverse($preauth_transaction_id, self::client_ip());
-        } catch (HelcimApiException $e) {
-            // Nothing was charged either way; a failed reverse call just
-            // means the hold expires on its own within Helcim's 7-day
-            // window instead of being released immediately — logged so
-            // it's not silently invisible, matching "every failure path
-            // must end in a visible review state."
-            error_log("bsc_helcim: reverse failed for transaction {$preauth_transaction_id} ({$reason}): " . $e->getMessage());
-        }
-    }
-
-    public static function client_ip(): string
-    {
-        if (class_exists(\WC_Geolocation::class)) {
-            return \WC_Geolocation::get_ip_address();
-        }
-        return $_SERVER['REMOTE_ADDR'] ?? '0.0.0.0';
-    }
-}
diff --git a/wp-content/plugins/bookstore-core/includes/Payments/HelcimGatewayConfig.php b/wp-content/plugins/bookstore-core/includes/Payments/HelcimGatewayConfig.php
deleted file mode 100644
index cb22a54..0000000
--- a/wp-content/plugins/bookstore-core/includes/Payments/HelcimGatewayConfig.php
+++ /dev/null
@@ -1,79 +0,0 @@
-<?php
-
-namespace Bookstore\Core\Payments;
-
-defined('ABSPATH') || exit;
-
-/**
- * Replaces Payments\HelcimConfig (which seeded settings for the
- * off-the-shelf helcim-commerce-for-woocommerce plugin — removed, see
- * design doc Appendix B's revised decision: that plugin only supports
- * immediate-charge "Purchase" transactions, not the preauth/capture flow
- * this now uses, so a custom gateway (Payments\HelcimGateway) replaces
- * it rather than extending it). Gateway id `bsc_helcim`, settings option
- * `woocommerce_bsc_helcim_settings` — our own, not the old plugin's.
- *
- * _FILE env-var reading mirrors Integration\HardcoverAdapter::token()
- * exactly, same reasoning: a plain ${VAR} is visible via `docker
- * inspect`/`/proc/<pid>/environ`, a 644 file inside a 700 secrets/ dir
- * isn't.
- */
-class HelcimGatewayConfig
-{
-    public const OPTION_NAME = 'woocommerce_bsc_helcim_settings';
-
-    /**
-     * False today (no HELCIM_API_TOKEN in any .env yet) — this is
-     * exactly the condition Payments\HelcimClient checks to decide
-     * whether to talk to the real Helcim API or return fake-mode
-     * responses. Flips to true, with zero code changes anywhere else,
-     * the moment a real sandbox token is added.
-     */
-    public static function is_configured(): bool
-    {
-        return self::token() !== null;
-    }
-
-    public static function token(): ?string
-    {
-        $file = getenv('HELCIM_API_TOKEN_FILE');
-        if (!$file || !is_readable($file)) {
-            return null;
-        }
-        $value = trim((string) file_get_contents($file));
-        return $value !== '' ? $value : null;
-    }
-
-    /**
-     * Fills in only what's still unset — never overwrites a value a human
-     * already changed by hand in wp-admin. Only ever seeds the sandbox
-     * token: this repo has no production Helcim credentials, and going
-     * live is a deliberate separate decision a human makes on the
-     * settings screen, not something an env var should flip silently.
-     */
-    public static function ensure_configured_from_env(): void
-    {
-        $token = self::token();
-        if ($token === null) {
-            return;
-        }
-
-        $settings = get_option(self::OPTION_NAME, []);
-        if (!is_array($settings)) {
-            $settings = [];
-        }
-
-        $settings += [
-            'enabled' => 'no', // a human opts in explicitly once ready to test live at checkout
-            'title' => 'Credit Card',
-            'description' => '',
-            'environment' => 'sandbox',
-        ];
-
-        if (empty($settings['sandbox_api_token'])) {
-            $settings['sandbox_api_token'] = $token;
-        }
-
-        update_option(self::OPTION_NAME, $settings);
-    }
-}
diff --git a/wp-content/plugins/bookstore-core/includes/Pricing/PricingEngine.php b/wp-content/plugins/bookstore-core/includes/Pricing/PricingEngine.php
index d2c5534..a235132 100644
--- a/wp-content/plugins/bookstore-core/includes/Pricing/PricingEngine.php
+++ b/wp-content/plugins/bookstore-core/includes/Pricing/PricingEngine.php
@@ -10,7 +10,7 @@ defined('ABSPATH') || exit;
 /**
  * Design doc §05: Retail Price = (Supplier Base + Supplier Shipping +
  * Fixed Processing) / (1 - Processing Rate - Target Margin). Processing
- * Rate is a placeholder blended estimate — tune from real Helcim
+ * Rate is a placeholder blended estimate — tune from real Stripe
  * settlement data once it exists, not from guessing.
  */
 class PricingEngine
@@ -58,7 +58,7 @@ class PricingEngine
     }
 
     /**
-     * Week 3: what calculate_retail_price() assumed Helcim's cut would be
+     * Week 3: what calculate_retail_price() assumed Stripe's cut would be
      * for a given selling price, for the order-audit ledger
      * (Order\AuditTrail) to compare against actual settlement later.
      * Exposed as its own method (rather than inlining the formula at every
diff --git a/wp-content/plugins/bookstore-core/tests/Unit/Payments/HelcimClientTest.php b/wp-content/plugins/bookstore-core/tests/Unit/Payments/HelcimClientTest.php
deleted file mode 100644
index 3fc7052..0000000
--- a/wp-content/plugins/bookstore-core/tests/Unit/Payments/HelcimClientTest.php
+++ /dev/null
@@ -1,115 +0,0 @@
-<?php
-
-namespace Bookstore\Core\Tests\Unit\Payments;
-
-use Bookstore\Core\Payments\HelcimApiException;
-use Bookstore\Core\Payments\HelcimClient;
-use Bookstore\Core\Tests\TestCase;
-use Brain\Monkey\Functions;
-
-/**
- * HelcimGatewayConfig::token() reads getenv('HELCIM_API_TOKEN_FILE') —
- * mocking that directly is what switches HelcimClient between fake mode
- * (no token: every call returns a synthetic approved response, no
- * network call) and real mode (a token: real wp_remote_post calls with
- * the shape confirmed against Helcim's current developer docs).
- */
-class HelcimClientTest extends TestCase
-{
-    public function test_fake_mode_never_calls_the_real_api(): void
-    {
-        Functions\when('getenv')->justReturn(false);
-        Functions\when('wp_generate_uuid4')->justReturn('fake-uuid');
-        Functions\expect('wp_remote_post')->never();
-
-        $init = HelcimClient::initialize_checkout(42.00, 'USD', 'preauth');
-        $this->assertTrue($init['fake']);
-        $this->assertNotEmpty($init['checkoutToken']);
-        $this->assertNotEmpty($init['secretToken']);
-
-        $capture = HelcimClient::capture(123456, 42.00, '127.0.0.1');
-        $this->assertSame('APPROVED', $capture['status']);
-        $this->assertIsInt($capture['transactionId']);
-        $this->assertNotEmpty($capture['cardToken']);
-
-        $reverse = HelcimClient::reverse(123456, '127.0.0.1');
-        $this->assertSame('APPROVED', $reverse['status']);
-    }
-
-    public function test_real_mode_initialize_sends_the_documented_request_shape(): void
-    {
-        Functions\when('getenv')->justReturn('/fake/path/to/token');
-        Functions\when('is_readable')->justReturn(true);
-        Functions\when('file_get_contents')->justReturn('real-token-abc');
-        Functions\when('wp_json_encode')->alias('json_encode');
-        Functions\when('is_wp_error')->justReturn(false);
-        Functions\when('wp_remote_retrieve_response_code')->justReturn(200);
-        Functions\when('wp_remote_retrieve_body')->justReturn(json_encode([
-            'checkoutToken' => 'real-checkout-token',
-            'secretToken' => 'real-secret-token',
-        ]));
-
-        Functions\expect('wp_remote_post')
-            ->once()
-            ->withArgs(function ($url, $args) {
-                $this->assertSame('https://api.helcim.com/v2/helcim-pay/initialize', $url);
-                $this->assertSame('real-token-abc', $args['headers']['api-token']);
-                $this->assertArrayNotHasKey('idempotency-key', $args['headers']);
-                $body = json_decode($args['body'], true);
-                $this->assertSame('preauth', $body['paymentType']);
-                $this->assertEquals(42.0, $body['amount']);
-                $this->assertSame('USD', $body['currency']);
-                return true;
-            })
-            ->andReturn(['response' => ['code' => 200]]);
-
-        $result = HelcimClient::initialize_checkout(42.00, 'USD', 'preauth');
-        $this->assertSame('real-checkout-token', $result['checkoutToken']);
-    }
-
-    public function test_real_mode_capture_includes_an_idempotency_key(): void
-    {
-        Functions\when('getenv')->justReturn('/fake/path/to/token');
-        Functions\when('is_readable')->justReturn(true);
-        Functions\when('file_get_contents')->justReturn('real-token-abc');
-        Functions\when('wp_json_encode')->alias('json_encode');
-        Functions\when('wp_generate_uuid4')->justReturn('idem-key-123');
-        Functions\when('is_wp_error')->justReturn(false);
-        Functions\when('wp_remote_retrieve_response_code')->justReturn(200);
-        Functions\when('wp_remote_retrieve_body')->justReturn(json_encode(['transactionId' => 999, 'status' => 'APPROVED']));
-
-        Functions\expect('wp_remote_post')
-            ->once()
-            ->withArgs(function ($url, $args) {
-                $this->assertSame('https://api.helcim.com/v2/payment/capture', $url);
-                $this->assertSame('idem-key-123', $args['headers']['idempotency-key']);
-                $body = json_decode($args['body'], true);
-                $this->assertSame(555, $body['preAuthTransactionId']);
-                $this->assertEquals(42.0, $body['amount']);
-                $this->assertSame('127.0.0.1', $body['ipAddress']);
-                return true;
-            })
-            ->andReturn(['response' => ['code' => 200]]);
-
-        $result = HelcimClient::capture(555, 42.00, '127.0.0.1');
-        $this->assertSame(999, $result['transactionId']);
-    }
-
-    public function test_real_mode_throws_on_an_error_response(): void
-    {
-        Functions\when('getenv')->justReturn('/fake/path/to/token');
-        Functions\when('is_readable')->justReturn(true);
-        Functions\when('file_get_contents')->justReturn('real-token-abc');
-        Functions\when('wp_json_encode')->alias('json_encode');
-        Functions\when('wp_generate_uuid4')->justReturn('idem-key-123');
-        Functions\when('is_wp_error')->justReturn(false);
-        Functions\when('wp_remote_retrieve_response_code')->justReturn(422);
-        Functions\when('wp_remote_retrieve_body')->justReturn(json_encode(['errors' => ['card declined']]));
-        Functions\when('wp_remote_post')->justReturn(['response' => ['code' => 422]]);
-
-        $this->expectException(HelcimApiException::class);
-        $this->expectExceptionMessageMatches('/card declined/');
-
-        HelcimClient::capture(555, 42.00, '127.0.0.1');
-    }
-}
diff --git a/wp-content/plugins/bookstore-core/tests/Unit/Payments/HelcimGatewayTest.php b/wp-content/plugins/bookstore-core/tests/Unit/Payments/HelcimGatewayTest.php
deleted file mode 100644
index c580022..0000000
--- a/wp-content/plugins/bookstore-core/tests/Unit/Payments/HelcimGatewayTest.php
+++ /dev/null
@@ -1,84 +0,0 @@
-<?php
-
-namespace Bookstore\Core\Tests\Unit\Payments;
-
-use Bookstore\Core\Order\OrderStatuses;
-use Bookstore\Core\Payments\HelcimGateway;
-use Bookstore\Core\Tests\TestCase;
-use Brain\Monkey\Functions;
-use Mockery;
-
-/**
- * process_payment()'s branching: pick up the preauth CheckoutController
- * already stashed (Payments\CheckoutSession, backed by get/set/delete_
- * transient — mocked at that WP-function layer, not by mocking
- * CheckoutSession itself, matching this suite's established pattern),
- * run the (moved-here) fraud check, and either authorize the order or
- * reverse the hold and route to review. HelcimClient runs in fake mode
- * here (no token env) so no real network call is involved either way.
- */
-class HelcimGatewayTest extends TestCase
-{
-    private function stub_pending_preauth(?array $data): void
-    {
-        Functions\when('get_transient')->justReturn($data);
-        Functions\when('delete_transient')->justReturn(true);
-        Functions\when('getenv')->justReturn(false); // HelcimClient stays in fake mode
-        Functions\when('wp_generate_uuid4')->justReturn('fake-uuid');
-        Functions\when('WC')->justReturn((object) ['session' => null]); // CheckoutSession::identity() falls back to session_id()
-    }
-
-    private function mock_order(): \WC_Order
-    {
-        $order = Mockery::mock(\WC_Order::class);
-        $order->shouldReceive('update_meta_data')->withAnyArgs();
-        $order->shouldReceive('save');
-        $order->shouldReceive('add_order_note')->withAnyArgs();
-        $order->shouldReceive('get_meta')->withAnyArgs()->andReturn('');
-        return $order;
-    }
-
-    public function test_no_pending_preauth_fails_without_touching_the_order(): void
-    {
-        $this->stub_pending_preauth(null);
-        Functions\when('wc_get_order')->justReturn(Mockery::mock(\WC_Order::class));
-        Functions\expect('wc_add_notice')->once();
-
-        $gateway = new HelcimGateway();
-        $result = $gateway->process_payment(123);
-
-        $this->assertSame('failure', $result['result']);
-    }
-
-    public function test_fraud_pass_authorizes_the_order(): void
-    {
-        $this->stub_pending_preauth(['preauth_transaction_id' => 555, 'card_token' => 'tok_1', 'amount' => 42.00]);
-        Functions\when('apply_filters')->justReturn(['pass' => true, 'reason' => 'no-op: fraud plugin not installed']);
-
-        $order = $this->mock_order();
-        $order->shouldReceive('update_status')->once()->with(OrderStatuses::AUTHORIZED, Mockery::type('string'));
-        Functions\when('wc_get_order')->justReturn($order);
-
-        $gateway = new HelcimGateway();
-        $result = $gateway->process_payment(123);
-
-        $this->assertSame('success', $result['result']);
-        $this->assertArrayHasKey('redirect', $result);
-    }
-
-    public function test_fraud_fail_reverses_the_hold_and_routes_to_exception(): void
-    {
-        $this->stub_pending_preauth(['preauth_transaction_id' => 555, 'card_token' => 'tok_1', 'amount' => 42.00]);
-        Functions\when('apply_filters')->justReturn(['pass' => false, 'reason' => 'high risk score']);
-        Functions\expect('wc_add_notice')->once();
-
-        $order = $this->mock_order();
-        $order->shouldReceive('update_status')->once()->with(OrderStatuses::EXCEPTION, Mockery::type('string'));
-        Functions\when('wc_get_order')->justReturn($order);
-
-        $gateway = new HelcimGateway();
-        $result = $gateway->process_payment(123);
-
-        $this->assertSame('failure', $result['result']);
-    }
-}
diff --git a/wp-content/plugins/bookstore-core/tests/bootstrap.php b/wp-content/plugins/bookstore-core/tests/bootstrap.php
index d80c4e6..1c96eba 100644
--- a/wp-content/plugins/bookstore-core/tests/bootstrap.php
+++ b/wp-content/plugins/bookstore-core/tests/bootstrap.php
@@ -27,46 +27,6 @@ if (!class_exists(\WC_Cart::class)) {
     }
 }
 
-// Payments\HelcimGateway extends this. Minimal stand-in for the real
-// WC_Payment_Gateway's settings-API plumbing (init_settings()/
-// get_option()) so the constructor doesn't fatal in a unit test — real
-// WooCommerce's version does much more (admin fields rendering, etc.),
-// none of which the gateway's process_payment() branching depends on.
-if (!class_exists(\WC_Payment_Gateway::class)) {
-    class WC_Payment_Gateway
-    {
-        public $id;
-        public $method_title;
-        public $method_description;
-        public $has_fields;
-        public $supports = [];
-        public $title;
-        public $description;
-        public $enabled;
-        public $form_fields = [];
-        public $settings = [];
-
-        public function init_settings(): void
-        {
-            $this->settings = [];
-        }
-
-        public function get_option($key, $default = '')
-        {
-            return $this->settings[$key] ?? $default;
-        }
-
-        public function get_return_url($order)
-        {
-            return 'https://example.test/order-received/';
-        }
-
-        public function process_admin_options(): void
-        {
-        }
-    }
-}
-
 if (!class_exists(\WP_Error::class)) {
     class WP_Error
     {