feat: Add VitePress docs, EPUB to PDF tool, Phosphor icons, and licensing updates

- Set up VitePress documentation site (docs:dev, docs:build, docs:preview)
- Added Getting Started, Tools Reference, Contributing, and Commercial License pages
- Created self-hosting guides for Docker, Vercel, Netlify, Cloudflare, AWS, Hostinger, Nginx, Apache
- Updated README with documentation link, sponsors section, and docs contribution guide

- Added EPUB to PDF converter using LibreOffice WASM

- Migrated to Phosphor Icons for consistent iconography

- Added donation ribbon banner on landing page
- Removed 'Like My Work?' section (replaced by ribbon)
- Updated licensing.html with delivery model, AGPL notice, invoicing, and no-refund policy

- Added Commercial License documentation page
- Updated translations table (Chinese added, marked non-English as In Progress)

- Added sponsors.yml workflow for auto-generating sponsor avatars

docs/getting-started.md

@@ -0,0 +1,65 @@
+# Getting Started
+
+Welcome to BentoPDF! This guide will help you get up and running quickly.
+
+## What is BentoPDF?
+
+BentoPDF is a free, open-source, privacy-first PDF toolkit that runs **entirely in your browser**. Your files never leave your device—all processing happens locally using WebAssembly (WASM) technology.
+
+## Quick Start
+
+### Option 1: Use the Hosted Version
+
+Visit [bentopdf.com](https://bentopdf.com) to use BentoPDF instantly—no installation required.
+
+### Option 2: Self-Host with Docker
+
+```bash
+# Pull and run the Docker image
+docker run -d -p 3000:80 ghcr.io/bentopdf/bentopdf:latest
+
+# Or use Docker Compose
+curl -O https://raw.githubusercontent.com/bentopdf/bentopdf/main/docker-compose.yml
+docker compose up -d
+```
+
+Then open `http://localhost:3000` in your browser.
+
+### Option 3: Build from Source
+
+```bash
+# Clone the repository
+git clone https://github.com/bentopdf/bentopdf.git
+cd bentopdf
+
+# Install dependencies
+npm install
+
+# Start development server
+npm run dev
+```
+
+## Features at a Glance
+
+| Category | Tools |
+|----------|-------|
+| **Convert to PDF** | Word, Excel, PowerPoint, Images, Markdown, EPUB, MOBI, and more |
+| **Convert from PDF** | JPG, PNG, Text, Excel, SVG, and more |
+| **Edit & Annotate** | Sign, Highlight, Redact, Fill Forms, Add Stamps |
+| **Organize** | Merge, Split, Rotate, Delete Pages, Reorder |
+| **Optimize** | Compress, Repair, Flatten, OCR |
+| **Security** | Encrypt, Decrypt, Remove Restrictions |
+
+## Browser Support
+
+BentoPDF works best on modern browsers:
+
+- ✅ Chrome/Edge 90+
+- ✅ Firefox 90+
+- ✅ Safari 15+
+
+## Next Steps
+
+- [Explore all tools](/tools/)
+- [Self-host BentoPDF](/self-hosting/)
+- [Contribute to the project](/contributing)