Add initial JSON data files and implement core page components for game functionality

app/Model/UserModel.js

@@ -0,0 +1,30 @@
+class UserModel {
+  constructor(payload) {
+    this.Uid = payload.Uid;
+    this.username = payload.username;
+    this.email = payload.email;
+    this.passwordHash = payload.passwordHash;
+    this.isBusiness = Boolean(payload.isBusiness);
+    this.IsAcceptedAdmin = Boolean(payload.IsAcceptedAdmin);
+    this.Gid = payload.Gid ?? null;
+    this.SGid = payload.SGid ?? null;
+    this.TGid = payload.TGid ?? null;
+  }
+
+  toJSON() {
+    return {
+      Uid: this.Uid,
+      username: this.username,
+      email: this.email,
+      passwordHash: this.passwordHash,
+      isBusiness: this.isBusiness,
+      IsAcceptedAdmin: this.IsAcceptedAdmin,
+      Gid: this.Gid,
+      SGid: this.SGid,
+      TGid: this.TGid,
+    };
+  }
+}
+
+export default UserModel;
+