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/src/index.ts

@@ -0,0 +1,56 @@
+#!/usr/bin/env node
+
+import { Command } from 'commander';
+import { initCommand } from './commands/init.js';
+import { versionsCommand } from './commands/versions.js';
+import { updateCommand } from './commands/update.js';
+import type { AIType } from './types/index.js';
+import { AI_TYPES } from './types/index.js';
+
+const program = new Command();
+
+program
+  .name('uipro')
+  .description('CLI to install UI/UX Pro Max skill for AI coding assistants')
+  .version('1.0.0');
+
+program
+  .command('init')
+  .description('Install UI/UX Pro Max skill to current project')
+  .option('-a, --ai <type>', `AI assistant type (${AI_TYPES.join(', ')})`)
+  .option('-v, --version <tag>', 'Specific version to install')
+  .option('-f, --force', 'Overwrite existing files')
+  .action(async (options) => {
+    if (options.ai && !AI_TYPES.includes(options.ai)) {
+      console.error(`Invalid AI type: ${options.ai}`);
+      console.error(`Valid types: ${AI_TYPES.join(', ')}`);
+      process.exit(1);
+    }
+    await initCommand({
+      ai: options.ai as AIType | undefined,
+      version: options.version,
+      force: options.force,
+    });
+  });
+
+program
+  .command('versions')
+  .description('List available versions')
+  .action(versionsCommand);
+
+program
+  .command('update')
+  .description('Update UI/UX Pro Max to latest version')
+  .option('-a, --ai <type>', `AI assistant type (${AI_TYPES.join(', ')})`)
+  .action(async (options) => {
+    if (options.ai && !AI_TYPES.includes(options.ai)) {
+      console.error(`Invalid AI type: ${options.ai}`);
+      console.error(`Valid types: ${AI_TYPES.join(', ')}`);
+      process.exit(1);
+    }
+    await updateCommand({
+      ai: options.ai as AIType | undefined,
+    });
+  });
+
+program.parse();