docs(docs-site): 사이드바 재정렬 + getting-started 강화 + TOC 복원 (4개 로케일) (#698)

* docs(docs-site): 사이드바 재정렬 + getting-started 본문 강화 + TOC 복원 (4개 로케일)

사용자 학습 여정에 맞춰 좌측 사이드바 순서를 재정렬하고,
1024~1280px 뷰포트에서 사라지던 좌/우 사이드바를 복원했다.

## 변경 요약

- 최상위 사이드바 weight 재배치 (ko/en/ja/zh 4개 로케일)
  시작하기(10) → 핵심 개념(20) → 워크플로우(30) → 유틸(40) → 품질(50)
  → 디자인(60) → DB(70) → 멀티LLM(80) → Worktree(90) → 심화(100)
  → 참여하기(110)
- _meta.yaml에 weight 명시 + 각 _index.md weight 동기화
- db/_index.md weight 15 → 70 (일관성)
- design/_index.md weight 10 → 60 (4개 로케일)
- advanced/_index.md weight 80 → 100 (4개 로케일)

## getting-started/_index.md 본문 강화 (4개 로케일)

기존 7줄 단문에서 학습 여정 다이어그램 + 권장 읽기 순서 표로 확장.
Mermaid TD flowchart + cards-style 테이블 + 다음 단계 callout.

## 레이아웃 복원

- hugo.yaml cascade.target.path=/** + type=docs 추가
  Hextra 기본 single.html은 disableSidebar=true를 주입하므로
  모든 페이지가 docs/single.html을 사용하도록 type=docs 전파.
- layouts/partials/custom/head-end.html에 media query 추가
  1024~1279px 구간에서 aside.hextra-sidebar-container 및
  nav.hextra-toc를 display:block으로 복원.

## 검증

- 4개 로케일 홈/섹션/개별 페이지 67개 HTTP 200 OK (ko 기준)
- Chrome DevTools 1101px 뷰포트에서 좌/본문/우 3-column 렌더 확인
- 콘솔 에러 0건, Hugo warn 3건(deprecated API, 콘텐츠 영향 없음)

🗿 MoAI <email@mo.ai.kr>

* chore(skills): brand-design/copywriting을 non-user-invocable로 변경

두 스킬은 designer/copywriter 에이전트가 백그라운드로 사용하도록 설계된
도메인 스킬이다. 사용자가 슬래시 메뉴에서 직접 호출하지 않도록
user-invocable을 false로 바꿔 / 메뉴에서 숨긴다. Claude는 여전히
내부적으로 로드하고 활용한다.

## 변경 파일

- .claude/skills/moai-domain-brand-design/SKILL.md
- .claude/skills/moai-domain-copywriting/SKILL.md
- internal/template/templates/.claude/skills/moai-domain-brand-design/SKILL.md
- internal/template/templates/.claude/skills/moai-domain-copywriting/SKILL.md

## 영향

- 슬래시 명령 메뉴에 `moai-domain-brand-design`, `moai-domain-copywriting`
  항목이 노출되지 않음
- 에이전트가 skill을 호출하는 기존 동작은 변경 없음
- 신규 프로젝트 `moai init` 시 템플릿이 동일 설정 적용

🗿 MoAI <email@mo.ai.kr>

Author: GoosLab

docs-site/content/en/_meta.yaml

@@ -1,19 +1,27 @@
 "getting-started":
   title: "Getting Started"
+  weight: 10
 "core-concepts":
   title: "Core Concepts"
+  weight: 20
 "workflow-commands":
   title: "Workflow Commands"
+  weight: 30
 "utility-commands":
   title: "Utility Commands"
+  weight: 40
 "quality-commands":
   title: "Quality Commands"
+  weight: 50
 design:
   title: "Design System"
+  weight: 60
 db:
   title: "Database Schema Management"
-  weight: 15
-advanced:
-  title: "Advanced"
+  weight: 70
 worktree:
   title: "Git Worktree"
+  weight: 90
+advanced:
+  title: "Advanced"
+  weight: 100

docs-site/content/en/advanced/_index.md

@@ -1,6 +1,6 @@
 ---
 title: Advanced
-weight: 80
+weight: 100
 draft: false
 ---
 

docs-site/content/en/db/_index.md

@@ -1,7 +1,7 @@
 ---
 title: Database Schema Management
 description: Automatically track and manage schemas, migrations, and seed data
-weight: 15
+weight: 70
 draft: false
 ---
 

docs-site/content/en/design/_index.md

@@ -1,7 +1,7 @@
 ---
 title: Design System
 description: Hybrid design workflow combining Claude Design and code-based paths
-weight: 10
+weight: 60
 draft: false
 ---
 

docs-site/content/en/getting-started/_index.md

@@ -1,7 +1,39 @@
 ---
 title: Getting Started
+description: Step-by-step guide from installation to running your first MoAI-ADK project
 weight: 10
 draft: false
 ---
 
-Learn how to get started with MoAI-ADK.
+Welcome to MoAI-ADK. Follow the **Introduction → Installation → Quick Start** path and you will have your first MoAI-ADK project running in under 30 minutes.
+
+{{< callout type="info" >}}
+Already installed? Jump straight to [Quick Start](./quickstart). Looking for CLI flags, see [CLI Reference](./cli). Hitting an issue, try the [FAQ](./faq).
+{{< /callout >}}
+
+## Learning Flow
+
+```mermaid
+flowchart TD
+    A["Introduction<br>WHAT/WHY"] --> B["Installation<br>Prerequisites"]
+    B --> C["Setup Wizard<br>moai init"]
+    C --> D["Quick Start<br>First SPEC"]
+    D --> E["Update<br>Keep Current"]
+    E --> F["CLI / FAQ<br>Reference"]
+```
+
+## Recommended Reading Order
+
+| Step | Document | What you will learn |
+|------|----------|---------------------|
+| 1 | [Introduction](./introduction) | What MoAI-ADK is and the problems it solves |
+| 2 | [Installation](./installation) | Install on macOS/Linux and verify prerequisites |
+| 3 | [Setup Wizard](./init-wizard) | Configure your project with `moai init` |
+| 4 | [Quick Start](./quickstart) | Create your first SPEC and run `/moai plan → run → sync` |
+| 5 | [Update](./update) | Keep your templates and binary up to date |
+| 6 | [CLI Reference](./cli) | Complete index of `moai` subcommands |
+| 7 | [FAQ](./faq) | Common installation and runtime issues |
+
+{{< callout type="info" >}}
+**Next step**: After finishing installation, explore [Core Concepts](/en/core-concepts/) to learn about SPEC-based development, DDD, and the TRUST 5 quality framework.
+{{< /callout >}}

docs-site/content/ja/_meta.yaml

@@ -1,19 +1,27 @@
 "getting-started":
   title: "はじめに"
+  weight: 10
 "core-concepts":
   title: "コア概念"
+  weight: 20
 "workflow-commands":
   title: "ワークフローコマンド"
+  weight: 30
 "utility-commands":
   title: "ユーティリティコマンド"
+  weight: 40
 "quality-commands":
   title: "品質コマンド"
+  weight: 50
 design:
   title: "デザインシステム"
+  weight: 60
 db:
   title: "データベーススキーマ管理"
-  weight: 15
-advanced:
-  title: "詳細"
+  weight: 70
 worktree:
   title: "Git Worktree"
+  weight: 90
+advanced:
+  title: "詳細"
+  weight: 100

docs-site/content/ja/advanced/_index.md

@@ -1,6 +1,6 @@
 ---
 title: 上級トピック
-weight: 80
+weight: 100
 draft: false
 ---
 

docs-site/content/ja/db/_index.md

@@ -1,7 +1,7 @@
 ---
 title: データベーススキーマ管理
 description: スキーマ、マイグレーション、シードデータを自動的に追跡および管理
-weight: 15
+weight: 70
 draft: false
 ---
 

docs-site/content/ja/design/_index.md

@@ -1,7 +1,7 @@
 ---
 title: デザインシステム
 description: Claude Designとコードベースパスを組み合わせたハイブリッド設計ワークフロー
-weight: 10
+weight: 60
 draft: false
 ---
 

docs-site/content/ja/getting-started/_index.md

@@ -1,7 +1,39 @@
 ---
 title: はじめに
+description: インストールから最初の MoAI-ADK プロジェクト実行までのステップバイステップガイド
 weight: 10
 draft: false
 ---
 
-MoAI-ADK の使用方法を学びます。
+MoAI-ADK へようこそ。**紹介 → インストール → クイックスタート** の順に読み進めれば、30 分以内に最初の MoAI-ADK プロジェクトを実行できます。
+
+{{< callout type="info" >}}
+すでにインストール済みの場合は [クイックスタート](./quickstart) へ。CLI フラグを探している場合は [CLI リファレンス](./cli) を、問題が発生した場合は [FAQ](./faq) を参照してください。
+{{< /callout >}}
+
+## 学習の流れ
+
+```mermaid
+flowchart TD
+    A["紹介<br>WHAT/WHY"] --> B["インストール<br>前提条件"]
+    B --> C["セットアップ<br>moai init"]
+    C --> D["クイックスタート<br>初めての SPEC"]
+    D --> E["アップデート<br>最新維持"]
+    E --> F["CLI / FAQ<br>リファレンス"]
+```
+
+## 推奨される読む順序
+
+| 順序 | ドキュメント | 学べること |
+|------|--------------|-----------|
+| 1 | [紹介](./introduction) | MoAI-ADK とは何か、どんな問題を解決するのか |
+| 2 | [インストール](./installation) | macOS/Linux へのインストールと前提条件確認 |
+| 3 | [セットアップウィザード](./init-wizard) | `moai init` でプロジェクトを構成 |
+| 4 | [クイックスタート](./quickstart) | 最初の SPEC を作成し `/moai plan → run → sync` を実行 |
+| 5 | [アップデート](./update) | テンプレートとバイナリを最新に保つ |
+| 6 | [CLI リファレンス](./cli) | `moai` サブコマンドの完全索引 |
+| 7 | [よくある質問](./faq) | インストール・実行時に遭遇する一般的な問題 |
+
+{{< callout type="info" >}}
+**次のステップ**: インストールが完了したら、[コア概念](/ja/core-concepts/) で SPEC ベース開発、DDD、TRUST 5 品質フレームワークを学びましょう。
+{{< /callout >}}