feat(auth): implement user authentication system

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

@@ -0,0 +1,48 @@
+import * as core from "../core/index.js";
+import { $ZodError } from "../core/index.js";
+import * as util from "../core/util.js";
+const initializer = (inst, issues) => {
+    $ZodError.init(inst, issues);
+    inst.name = "ZodError";
+    Object.defineProperties(inst, {
+        format: {
+            value: (mapper) => core.formatError(inst, mapper),
+            // enumerable: false,
+        },
+        flatten: {
+            value: (mapper) => core.flattenError(inst, mapper),
+            // enumerable: false,
+        },
+        addIssue: {
+            value: (issue) => {
+                inst.issues.push(issue);
+                inst.message = JSON.stringify(inst.issues, util.jsonStringifyReplacer, 2);
+            },
+            // enumerable: false,
+        },
+        addIssues: {
+            value: (issues) => {
+                inst.issues.push(...issues);
+                inst.message = JSON.stringify(inst.issues, util.jsonStringifyReplacer, 2);
+            },
+            // enumerable: false,
+        },
+        isEmpty: {
+            get() {
+                return inst.issues.length === 0;
+            },
+            // enumerable: false,
+        },
+    });
+    // Object.defineProperty(inst, "isEmpty", {
+    //   get() {
+    //     return inst.issues.length === 0;
+    //   },
+    // });
+};
+export const ZodError = core.$constructor("ZodError", initializer);
+export const ZodRealError = core.$constructor("ZodError", initializer, {
+    Parent: Error,
+});
+// /** @deprecated Use `z.core.$ZodErrorMapCtx` instead. */
+// export type ErrorMapCtx = core.$ZodErrorMapCtx;