feat(install): improve installer with version selection, service restart handling, and upgrade documentation

readme.md

@@ -47,10 +47,11 @@ For reporting bugs, issues, or security vulnerabilities, please visit [community
 ### Installation
 
 ```bash
-# Download the latest release for your platform
-curl -sSL https://code.foss.global/serve.zone/onebox/releases/latest/download/onebox-linux-x64 -o onebox
-chmod +x onebox
-sudo mv onebox /usr/local/bin/
+# One-line install (recommended)
+curl -sSL https://code.foss.global/serve.zone/onebox/raw/branch/main/install.sh | sudo bash
+
+# Install a specific version
+curl -sSL https://code.foss.global/serve.zone/onebox/raw/branch/main/install.sh | sudo bash -s -- --version v1.11.0
 
 # Or install from npm
 pnpm install -g @serve.zone/onebox
@@ -242,6 +243,13 @@ onebox config set cloudflareZoneID your-zone-id
 onebox status
 ```
 
+### Upgrade
+
+```bash
+# Upgrade to the latest version (requires root)
+sudo onebox upgrade
+```
+
 ## Configuration 🔧
 
 ### System Requirements