feat: add Puter Cloudron package (Development)

- Create multi-stage Dockerfile with Node.js 23.9-alpine
- Add CloudronManifest.json with PostgreSQL and localstorage addons
- Create .dockerignore to exclude Cloudron package files
- Include README.md with comprehensive Internet OS documentation
- Add .env.example for environment configuration
- Add CHANGELOG.md for version tracking
- Add logo.png (Puter branding)

Puter is "The Internet OS" - an advanced, open-source
internet operating system designed to be feature-rich, exceptionally
fast, and highly extensible.

Package includes:
- Node.js 23.9-alpine based multi-stage build (361MB)
- PostgreSQL addon for database storage
- Localstorage addon for file storage
- Multi-stage Dockerfile (build + production)
- Comprehensive documentation with usage examples
- File management, app installation, and code editing examples

Features supported:
- Internet OS in browser (full desktop experience)
- Personal cloud storage (privacy-first, self-hosted)
- Web app builder and publisher
- App Store with growing ecosystem
- Built-in file manager with drag-and-drop
- Code editor with syntax highlighting
- Terminal with bash shell
- Multi-user support with permissions
- Games platform
- Remote desktop environment
- Alternative to Dropbox, Google Drive, OneDrive
- Window management, taskbar, start menu
- Keyboard shortcuts and efficiency features
- Themes and customizable interface

Environment variables:
- NO_VAR_RUNCUME: Assume no variable issues (default: 1)

Ports:
- 4100: Main HTTP port (web interface and API)

Addons:
- PostgreSQL: Database storage
- Localstorage: File storage and user data

💘 Generated with Crush

Assisted-by: GLM-4.7 via Crush <crush@charm.land>

Package-Workspace/Development/puter/.env.example

@@ -0,0 +1,16 @@
+# Puter Cloudron Environment Configuration Example
+# Copy this to .env and configure as needed
+
+# Application Configuration
+NO_VAR_RUNCUME=1
+
+# Database (Automatically configured by Cloudron PostgreSQL addon)
+# Puter uses its internal configuration to connect to PostgreSQL
+# No manual database environment variables needed
+
+# Puter Configuration
+# Most settings are configured via Puter web interface
+# System defaults are used for initial setup
+
+# Port Configuration (exposed via Cloudron)
+# Port 4100 is configured in CloudronManifest.json