system commit

backend/src/models/User.ts

@@ -0,0 +1,15 @@
+import { Schema, model, Document } from 'mongoose';
+
+export interface IUser extends Document {
+  email: string;
+  passwordHash: string;
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+const UserSchema = new Schema<IUser>({
+  email: { type: String, required: true, unique: true, index: true },
+  passwordHash: { type: String, required: true }
+}, { timestamps: true });
+
+export const User = model<IUser>('User', UserSchema);