docs: add install.sh usage to all localized READMEs

Updated README translations (zh, ja, vi, fr, pt-br) with:
- Quick install one-liner (curl/wget)
- Manual download instructions
- Options table for install script

Generated with [Z.ai](https://z.ai/subscribe?ic=JGTYCX7ZO7)

Co-Authored-By: Z.ai GLM-5

README.fr.md

@@ -137,6 +137,45 @@ PicoClaw peut être déployé sur pratiquement n'importe quel appareil Linux !
 
 Téléchargez le binaire pour votre plateforme depuis la page des [releases](https://github.com/sipeed/picoclaw/releases).
 
+**Installation rapide (recommandé) :**
+
+```bash
+curl -fsSL https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh | bash
+```
+
+**Ou avec wget :**
+
+```bash
+wget -qO- https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh | bash
+```
+
+**Téléchargement manuel :**
+
+```bash
+# Télécharger le script
+wget https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh
+chmod +x install.sh
+
+# Installer la dernière version
+./install.sh
+
+# Ou spécifier une version
+./install.sh v0.1.2
+
+# Voir toutes les options
+./install.sh -h
+```
+
+**Options du script d'installation :**
+
+| Option | Description |
+|--------|-------------|
+| `-l, --list-versions` | Lister toutes les versions disponibles |
+| `-a, --list-assets` | Lister les ressources téléchargeables |
+| `-i, --install-dir` | Répertoire d'installation personnalisé |
+| `-d, --download` | Télécharger uniquement (sans installation) |
+| `-y, --yes` | Ignorer les confirmations |
+
 ### Installer depuis les sources (dernières fonctionnalités, recommandé pour le développement)
 
 ```bash

README.ja.md

@@ -97,7 +97,46 @@ https://private-user-images.githubusercontent.com/83055338/547056448-e7b031ff-d6
 
 ### コンパイル済みバイナリでインストール
 
-[リリースページ](https://github.com/sipeed/picoclaw/releases) からお使いのプラットフォーム用のファームウェアをダウンロードしてください。
+[リリースページ](https://github.com/sipeed/picoclaw/releases) からお使いのプラットフォーム用のバイナリをダウンロードしてください。
+
+**クイックインストール（推奨）：**
+
+```bash
+curl -fsSL https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh | bash
+```
+
+**または wget で：**
+
+```bash
+wget -qO- https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh | bash
+```
+
+**手動ダウンロード：**
+
+```bash
+# スクリプトをダウンロード
+wget https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh
+chmod +x install.sh
+
+# 最新版をインストール
+./install.sh
+
+# またはバージョンを指定
+./install.sh v0.1.2
+
+# オプションを確認
+./install.sh -h
+```
+
+**インストールスクリプトのオプション：**
+
+| オプション | 説明 |
+|-----------|------|
+| `-l, --list-versions` | 利用可能なバージョン一覧を表示 |
+| `-a, --list-assets` | ダウンロード資産一覧を表示 |
+| `-i, --install-dir` | カスタムインストール先 |
+| `-d, --download` | ダウンロードのみ（インストールしない） |
+| `-y, --yes` | 確認プロンプトをスキップ |
 
 ### ソースからインストール（最新機能、開発向け推奨）
 

README.pt-br.md

@@ -138,6 +138,45 @@ https://private-user-images.githubusercontent.com/83055338/547056448-e7b031ff-d6
 
 Baixe o binário para sua plataforma na página de [releases](https://github.com/sipeed/picoclaw/releases).
 
+**Instalação rápida (recomendado):**
+
+```bash
+curl -fsSL https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh | bash
+```
+
+**Ou com wget:**
+
+```bash
+wget -qO- https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh | bash
+```
+
+**Download manual:**
+
+```bash
+# Baixar o script
+wget https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh
+chmod +x install.sh
+
+# Instalar a versão mais recente
+./install.sh
+
+# Ou especificar uma versão
+./install.sh v0.1.2
+
+# Ver todas as opções
+./install.sh -h
+```
+
+**Opções do script de instalação:**
+
+| Opção | Descrição |
+|-------|-----------|
+| `-l, --list-versions` | Listar todas as versões disponíveis |
+| `-a, --list-assets` | Listar recursos para download |
+| `-i, --install-dir` | Diretório de instalação personalizado |
+| `-d, --download` | Apenas baixar (sem instalar) |
+| `-y, --yes` | Pular confirmações |
+
 ### Instalar a partir do código-fonte (funcionalidades mais recentes, recomendado para desenvolvimento)
 
 ```bash

README.vi.md

@@ -118,6 +118,45 @@ https://private-user-images.githubusercontent.com/83055338/547056448-e7b031ff-d6
 
 Tải file binary cho nền tảng của bạn từ [trang Release](https://github.com/sipeed/picoclaw/releases).
 
+**Cài đặt nhanh (khuyên dùng):**
+
+```bash
+curl -fsSL https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh | bash
+```
+
+**Hoặc dùng wget:**
+
+```bash
+wget -qO- https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh | bash
+```
+
+**Tải thủ công:**
+
+```bash
+# Tải script cài đặt
+wget https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh
+chmod +x install.sh
+
+# Cài đặt phiên bản mới nhất
+./install.sh
+
+# Hoặc chỉ định phiên bản
+./install.sh v0.1.2
+
+# Xem tất cả tùy chọn
+./install.sh -h
+```
+
+**Các tùy chọn của script cài đặt:**
+
+| Tùy chọn | Mô tả |
+|----------|-------|
+| `-l, --list-versions` | Liệt kê tất cả phiên bản |
+| `-a, --list-assets` | Liệt kê các tệp tải xuống |
+| `-i, --install-dir` | Thư mục cài đặt tùy chỉnh |
+| `-d, --download` | Chỉ tải xuống (không cài đặt) |
+| `-y, --yes` | Bỏ qua xác nhận |
+
 ### Cài đặt từ mã nguồn (có tính năng mới nhất, khuyên dùng cho phát triển)
 
 ```bash

README.zh.md

@@ -133,7 +133,46 @@ PicoClaw 几乎可以部署在任何 Linux 设备上！
 
 ### 使用预编译二进制文件安装
 
-从 [Release 页面](https://github.com/sipeed/picoclaw/releases) 下载适用于您平台的固件。
+从 [Release 页面](https://github.com/sipeed/picoclaw/releases) 下载适用于您平台的二进制文件。
+
+**快速安装（推荐）：**
+
+```bash
+curl -fsSL https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh | bash
+```
+
+**或使用 wget：**
+
+```bash
+wget -qO- https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh | bash
+```
+
+**手动下载：**
+
+```bash
+# 下载安装脚本
+wget https://raw.githubusercontent.com/sipeed/picoclaw/main/install.sh
+chmod +x install.sh
+
+# 安装最新版本
+./install.sh
+
+# 或指定版本
+./install.sh v0.1.2
+
+# 查看所有选项
+./install.sh -h
+```
+
+**安装脚本选项：**
+
+| 选项 | 说明 |
+|------|------|
+| `-l, --list-versions` | 列出所有可用版本 |
+| `-a, --list-assets` | 列出下载资源 |
+| `-i, --install-dir` | 自定义安装目录 |
+| `-d, --download` | 仅下载（不安装） |
+| `-y, --yes` | 跳过确认提示 |
 
 ### 从源码安装（获取最新特性，开发推荐）