feat(backend): add fastify api, auth, prisma schema and jobs

apps/backend/src/index.ts

@@ -0,0 +1,32 @@
+import { buildApp } from './app.js';
+import { env } from './config/env.js';
+
+async function main(): Promise<void> {
+  const app = await buildApp();
+  try {
+    await app.listen({ port: env.BACKEND_PORT, host: '0.0.0.0' });
+  } catch (err) {
+    app.log.error({ err }, 'failed to start');
+    process.exit(1);
+  }
+
+  const shutdown = async (signal: NodeJS.Signals) => {
+    app.log.info({ signal }, 'shutting down');
+    try {
+      await app.close();
+      process.exit(0);
+    } catch (err) {
+      app.log.error({ err }, 'shutdown error');
+      process.exit(1);
+    }
+  };
+
+  process.on('SIGTERM', () => {
+    void shutdown('SIGTERM');
+  });
+  process.on('SIGINT', () => {
+    void shutdown('SIGINT');
+  });
+}
+
+void main();