feat(auth): implement user authentication system

backend/node_modules/zod/v4/classic/compat.js

@@ -0,0 +1,31 @@
+// Zod 3 compat layer
+import * as core from "../core/index.js";
+/** @deprecated Use the raw string literal codes instead, e.g. "invalid_type". */
+export const ZodIssueCode = {
+    invalid_type: "invalid_type",
+    too_big: "too_big",
+    too_small: "too_small",
+    invalid_format: "invalid_format",
+    not_multiple_of: "not_multiple_of",
+    unrecognized_keys: "unrecognized_keys",
+    invalid_union: "invalid_union",
+    invalid_key: "invalid_key",
+    invalid_element: "invalid_element",
+    invalid_value: "invalid_value",
+    custom: "custom",
+};
+export { $brand, config } from "../core/index.js";
+/** @deprecated Use `z.config(params)` instead. */
+export function setErrorMap(map) {
+    core.config({
+        customError: map,
+    });
+}
+/** @deprecated Use `z.config()` instead. */
+export function getErrorMap() {
+    return core.config().customError;
+}
+/** @deprecated Do not use. Stub definition, only included for zod-to-json-schema compatibility. */
+export var ZodFirstPartyTypeKind;
+(function (ZodFirstPartyTypeKind) {
+})(ZodFirstPartyTypeKind || (ZodFirstPartyTypeKind = {}));