feat(cli): Add automatic update command and documentation updates

changelog.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## 2025-10-27 - 1.3.0 - feat(cli)
+Add automatic update command and documentation updates
+
+- Add 'update' CLI command that checks the latest Gitea release and runs the install script to perform a self-update
+- Implements release fetch/compare logic and executes the repository install.sh via curl
+- Update README to document the one-line installer and the new 'moxytool update' usage
+- Update changelog to note the new update command and installation clarifications
+
 ## 2025-10-27 - 1.2.0 - feat(scripts)
 Add community scripts subsystem: script index, runner, and CLI commands with background refresh; update docs and paths
 
@@ -19,6 +27,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [1.1.0] - 2025-01-27
 
 ### Added
+- `update` command for automatic self-updating from Gitea releases
 - `scripts` command for Proxmox community scripts management
 - Access to 400+ community-maintained installation scripts
 - Automatic daily index updates with local caching
@@ -26,8 +35,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Interactive script execution with full stdin/stdout/stderr passthrough
 - Support for both LXC containers and VM templates
 - Script metadata display (requirements, ports, credentials)
+- One-line installation script as primary installation method
 
 ### Features
+- `moxytool update` - Update MOXYTOOL to the latest version automatically
 - `moxytool scripts list` - List all available scripts
 - `moxytool scripts search <query>` - Search scripts by keyword
 - `moxytool scripts info <slug>` - View detailed script information