[UMBRELLA ☂️] Asgardeo JavaScript SDK Suite – Framework & Platform Coverage

## Overview

This is an umbrella tracking issue for the **Asgardeo SDK Suite**, covering framework- and platform-specific SDKs.
The goal is to provide consistent, first-class developer experiences across popular JavaScript runtimes, frameworks, and meta-frameworks.

This issue tracks the current coverage, gaps, and related sub-issues for individual SDKs.

## SDK Coverage & Status

### Core & Runtime SDKs
- [x] **JavaScript SDK** (Core / Framework-agnostic)
- [x] **Browser SDK**
- [x] **Node.js SDK**
- [x] **Express.js SDK**

### Framework SDKs
- [x] **React SDK**
↳ https://github.com/asgardeo/javascript/issues/58
- [x] **Next.js SDK**
↳ https://github.com/asgardeo/javascript/issues/67
- [ ] **Vue.js SDK**
↳ https://github.com/asgardeo/javascript/issues/349
- [ ] **Nuxt SDK**
↳ https://github.com/asgardeo/javascript/issues/350

### Integrations
- [x] **React Router SDK**
- [x] **TanStack Router SDK**
↳ https://github.com/asgardeo/javascript/issues/152
- [ ] **`@next/auth` SDK**
↳ https://github.com/asgardeo/javascript/issues/364

## Goals

- Ensure feature parity and consistent DX across all SDKs
- Provide framework-native abstractions where applicable
- Align APIs, configuration patterns, and documentation across the SDK suite
- Enable scalable expansion as new frameworks gain adoption

## Scope

This umbrella issue is intended for:
- Tracking SDK coverage and gaps
- Linking related feature / implementation issues
- Aligning roadmap discussions across the SDK suite

Individual SDKs should be discussed and implemented in their respective linked issues.

まず、Vue (#349)、Nuxt (#350)、@next/auth (#364) に関するリンク済みの issue と、完了としてチェックされた SDK リンクを確認し、現在の対応状況を把握してください。ここではファイル、テスト、エントリーポイントは指定されていません。完了条件はギャップの追跡と個別の実装 issue のリンクに限られるため、単独で完結する最初のコントリビューションではありません。

索引モデルが issue の本文から書いたものです。