fix: add missing enqueueDonationMatching import and implementation

Author: oluwaseyi1996-netizen

backend/src/routes/donations.js

@@ -14,6 +14,7 @@ const { enqueueProfileUpdate } = require("../services/profileQueue");
 const { enqueuePushNotification } = require("../services/pushQueue");
 const { server } = require("../services/stellar");
 const { AppError } = require("../errors");
+const { enqueueDonationMatching } = require("../services/matchQueue");
 const donationLimiter = createRateLimiter(10, 1); // 10 requests per minute
 
 // Local EventEmitter used by both the POST /api/donations handler and the

backend/src/routes/donations.test.js

@@ -20,6 +20,10 @@ jest.mock("../services/pushQueue", () => ({
   enqueuePushNotification: jest.fn().mockResolvedValue(undefined),
 }));
 
+jest.mock("../services/matchQueue", () => ({
+  enqueueDonationMatching: jest.fn().mockResolvedValue("job-id"),
+}));
+
 const { server } = require("../services/stellar");
 const pool = require("../db/pool");
 const { computeBadges } = require("../services/store");

backend/src/services/indexerDonationHandler.js

@@ -20,6 +20,7 @@ const { checkAndDeliverMilestones } = require("./webhook");
 const { Counter } = require("prom-client");
 const { registry } = require("./metrics");
 const logger = require("../logger");
+const { enqueueDonationMatching } = require("./matchQueue");
 
 // Prometheus metric for tracking processed donations
 const indexerDonationsProcessed = new Counter({
@@ -164,6 +165,16 @@ async function handleDonation(projectId, op, { isNative, isUSDC, isBackfill = fa
 
     checkAndDeliverMilestones(projectId).catch(() => {});
 
+    if (isNative) {
+      enqueueDonationMatching(projectId, amount, donorAddress, txHash)
+        .catch((err) => {
+          logger.error(
+            { event: "matching_enqueue_failed", err, projectId, donorAddress },
+            "Failed to enqueue donation matching job",
+          );
+        });
+    }
+
     return { donationId, amount, currency, source };
   } catch (err) {
     if (inTransaction) await client.query("ROLLBACK");