fix AGENTS.md stack ref, add CORS plugin, add .env.example, remove dead index.ts

backend/package-lock.json

@@ -8,6 +8,7 @@
       "name": "muzick-backend",
       "version": "0.1.0",
       "dependencies": {
+        "@fastify/cors": "^11.3.0",
         "bullmq": "^5.1.0",
         "fastify": "^4.24.3",
         "pg": "^8.11.3",
@@ -519,6 +520,26 @@
         "fast-uri": "^2.0.0"
       }
     },
+    "node_modules/@fastify/cors": {
+      "version": "11.3.0",
+      "resolved": "https://registry.npmjs.org/@fastify/cors/-/cors-11.3.0.tgz",
+      "integrity": "sha512-ggQGua+xHv1MvePbPr0v//xLYEsCXbWspquXCJS9Ot5YoRXq8J8ZWzHnxDBVnbtXosvistXo6LtNzOJswf64Fw==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/fastify"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/fastify"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "fastify-plugin": "^6.0.0",
+        "toad-cache": "^3.7.0"
+      }
+    },
     "node_modules/@fastify/error": {
       "version": "3.4.1",
       "resolved": "https://registry.npmjs.org/@fastify/error/-/error-3.4.1.tgz",
@@ -1684,6 +1705,22 @@
         "toad-cache": "^3.3.0"
       }
     },
+    "node_modules/fastify-plugin": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/fastify-plugin/-/fastify-plugin-6.0.0.tgz",
+      "integrity": "sha512-fZOty7z3O7vOliF6d8bHE3wiEh1KcNnKEQensSgTk9C1DvN6nRLS++XVd86v33Hw/8u9Un8A1zDrQ8ujcQDHEg==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/fastify"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/fastify"
+        }
+      ],
+      "license": "MIT"
+    },
     "node_modules/fastq": {
       "version": "1.20.1",
       "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.20.1.tgz",

backend/package.json

@@ -13,6 +13,7 @@
     "setup-db": "./scripts/setup-db.sh"
   },
   "dependencies": {
+    "@fastify/cors": "^11.3.0",
     "bullmq": "^5.1.0",
     "fastify": "^4.24.3",
     "pg": "^8.11.3",

backend/src/app.ts

@@ -1,4 +1,5 @@
 import Fastify from 'fastify';
+import cors from '@fastify/cors';
 import { Client as PgClient } from 'pg';
 import { createClient as createRedisClient } from 'redis';
 import { DbService } from './services/db.service.js';
@@ -28,6 +29,10 @@ export interface AppConfig {
 export async function buildApp(config: AppConfig) {
   const fastify = Fastify({ logger: true });
 
+  await fastify.register(cors, {
+    origin: process.env.CORS_ORIGIN?.split(',') || ['http://localhost:5173', 'http://localhost:5174'],
+  });
+
   const pgClient = new PgClient({
     connectionString: process.env.DATABASE_URL,
   });

backend/src/index.ts

@@ -1 +0,0 @@
-console.log('Backend starting...');