fix: make payment event reduction monotonic

packages/payment/src/plugin.ts

@@ -19,12 +19,19 @@ DROP TABLE IF EXISTS wrn_payment_method;
 DROP TABLE IF EXISTS wrn_payment_refund;
 DROP TABLE IF EXISTS wrn_payment_event;
 DROP TABLE IF EXISTS wrn_payment_intent;`;
+const orderingMigration = `-- +up
+ALTER TABLE wrn_payment_event ADD COLUMN occurred_at BIGINT;
+ALTER TABLE wrn_payment_event ADD COLUMN gateway_sequence TEXT;
+UPDATE wrn_payment_event SET occurred_at = created_at WHERE occurred_at IS NULL;
+CREATE INDEX IF NOT EXISTS wrn_payment_event_gateway_order ON wrn_payment_event(intent_id, occurred_at, gateway_sequence, id);
+-- +down
+DROP INDEX IF EXISTS wrn_payment_event_gateway_order;`;
 
 export function paymentPlugin() {
   const key = "@wrnexus/payment:enabled";
   return definePlugin({
     name: "@wrnexus/payment",
-    version: "0.8.0",
+    version: "0.8.1",
     componentDirs: [join(root, "components")],
     routeEntries(context) {
       return context.metadata.get(key)
@@ -45,7 +52,12 @@ export function paymentPlugin() {
         throw new Error("WRN-PAYMENT-CONFIG: sandbox cannot be enabled in production");
     },
     migrations(context: PluginContext) {
-      return context.metadata.get(key) ? [{ id: "wrnexus-payment-001", source: migration }] : [];
+      return context.metadata.get(key)
+        ? [
+            { id: "wrnexus-payment-001", source: migration },
+            { id: "wrnexus-payment-002-event-order", source: orderingMigration },
+          ]
+        : [];
     },
     documentation: [join(root, "README.md")],
   });