Add gated delivery lifecycle

src/adapters/delivery.mjs

@@ -0,0 +1,25 @@
+import { TorchError } from '../kernel/errors.mjs';
+
+export const DELIVERY_OPERATIONS = Object.freeze(['release', 'deploy', 'verifyLive']);
+
+export function validateDeliveryAdapter(adapter) {
+  if (!adapter || typeof adapter.name !== 'string' || !adapter.capabilities) {
+    throw new TorchError('Delivery adapter is missing its name or capability declaration', {
+      code: 'INVALID_DELIVERY_ADAPTER',
+    });
+  }
+  for (const operation of DELIVERY_OPERATIONS) {
+    if (!(operation in adapter.capabilities) || typeof adapter[operation] !== 'function') {
+      throw new TorchError(`Delivery adapter ${adapter.name} does not declare and implement ${operation}`, {
+        code: 'INVALID_DELIVERY_ADAPTER', details: { operation },
+      });
+    }
+  }
+  return adapter;
+}
+
+export function unsupportedDeliveryCapability(adapterName, operation) {
+  throw new TorchError(`${adapterName} delivery adapter does not support ${operation}`, {
+    code: 'DELIVERY_CAPABILITY_UNSUPPORTED', details: { adapter: adapterName, operation },
+  });
+}