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/Dockerfile

@@ -0,0 +1,53 @@
+# Build stage
+FROM node:23.9-alpine AS build
+
+# Install build dependencies
+RUN apk add --no-cache git python3 make g++
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY repo/package*.json ./
+
+# Copy source code
+COPY repo/ .
+
+# Verify files are copied
+RUN ls -la
+
+# Install node modules (skip optional to reduce size)
+RUN npm install --production=false --no-optional
+
+# Build GUI
+RUN cd src/gui && npm run build && cd -
+
+# Production stage
+FROM node:23.9-alpine
+
+# Install runtime dependencies
+RUN apk add --no-cache git
+
+# Create app directories
+RUN mkdir -p /opt/puter/app
+
+# Set working directory
+WORKDIR /opt/puter/app
+
+# Copy built artifacts from build stage
+COPY --from=build /app/src/gui/dist ./dist
+COPY --from=build /app/package*.json ./
+COPY --from=build /app/src ./src
+
+# Expose port
+EXPOSE 4100
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
+    CMD wget --no-verbose --tries=1 --spider http://localhost:4100/test || exit 1
+
+# Environment
+ENV NO_VAR_RUNCUME=1
+
+# Start Puter
+CMD ["npm", "start"]