feat: add donations feature with one-time payments - M6 (refs #55)

backend/src/features/subscriptions/api/donations.routes.ts

@@ -0,0 +1,26 @@
+/**
+ * @ai-summary Donations HTTP routes
+ * @ai-context Defines donation endpoints with authentication
+ */
+
+import { FastifyInstance, FastifyPluginAsync, FastifyPluginOptions } from 'fastify';
+import { DonationsController } from './donations.controller';
+
+export const donationsRoutes: FastifyPluginAsync = async (
+  fastify: FastifyInstance,
+  _opts: FastifyPluginOptions
+) => {
+  const controller = new DonationsController();
+
+  // POST /api/donations - Create donation
+  fastify.post('/donations', {
+    preHandler: [fastify.authenticate],
+    handler: controller.createDonation.bind(controller),
+  });
+
+  // GET /api/donations - Get donation history
+  fastify.get('/donations', {
+    preHandler: [fastify.authenticate],
+    handler: controller.getDonations.bind(controller),
+  });
+};