init commit

packages/backend/env.ts

@@ -0,0 +1,10 @@
+import { createEnv } from "@t3-oss/env-core";
+import { z } from "zod/v4";
+
+export const authEnv = () => {
+  return createEnv({
+    server: {},
+    runtimeEnv: process.env,
+    skipValidation: !!process.env.CI,
+  });
+};