feat: add uxpro-cli for easy skill installation (#4)

* feat: add uxpro-cli for easy skill installation

- Add CLI tool (uxpro-cli) with commands: init, versions, update
- Support multiple AI assistants: claude, cursor, windsurf, antigravity, all
- Update README with CLI installation guide and usage examples
- Add CC BY-NC 4.0 license
- Update feature counts to accurate numbers

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

* refactor: rename CLI from uxpro to uipro

- Package: uxpro-cli -> uipro-cli
- Command: uxpro -> uipro

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

---------

Co-authored-by: Claude <noreply@anthropic.com>

cli/README.md

@@ -0,0 +1,45 @@
+# uipro-cli
+
+CLI to install UI/UX Pro Max skill for AI coding assistants.
+
+## Installation
+
+```bash
+npm install -g uipro-cli
+```
+
+## Usage
+
+```bash
+# Install for specific AI assistant
+uipro init --ai claude      # Claude Code
+uipro init --ai cursor      # Cursor
+uipro init --ai windsurf    # Windsurf
+uipro init --ai antigravity # Antigravity
+uipro init --ai all         # All assistants
+
+# Other commands
+uipro versions              # List available versions
+uipro update                # Update to latest version
+uipro init --version v1.0.0 # Install specific version
+```
+
+## Development
+
+```bash
+# Install dependencies
+bun install
+
+# Run locally
+bun run src/index.ts --help
+
+# Build
+bun run build
+
+# Link for local testing
+bun link
+```
+
+## License
+
+CC-BY-NC-4.0