feat(initial): add comprehensive PDF to JPEG preview library with dual-environment support

- Add Node.js implementation using @push.rocks/smartpdf
- Add browser implementation with PDF.js and Web Workers
- Support configurable quality, dimensions, and page selection
- Include comprehensive TypeScript definitions and error handling
- Provide extensive test coverage for both environments
- Add download functionality and browser compatibility checking

ts/plugins.ts

@@ -0,0 +1,15 @@
+/**
+ * Module dependencies are imported here following the guidelines
+ */
+
+// External dependencies
+export { SmartPdf } from '@push.rocks/smartpdf';
+export * as smartenv from '@push.rocks/smartenv';
+export * as smartjson from '@push.rocks/smartjson';
+export * as smartpromise from '@push.rocks/smartpromise';
+
+// Node.js built-in modules
+export * as fs from 'fs';
+import * as pathImport from 'path';
+export const path = pathImport;
+export * as buffer from 'buffer';