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

.vscode/launch.json

@@ -0,0 +1,45 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Debug Node.js Tests",
+      "type": "node",
+      "request": "launch",
+      "program": "${workspaceFolder}/node_modules/.bin/tstest",
+      "args": ["test/test.node.ts", "--verbose"],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "skipFiles": ["<node_internals>/**"]
+    },
+    {
+      "name": "Debug Browser Tests",
+      "type": "node",
+      "request": "launch",
+      "program": "${workspaceFolder}/node_modules/.bin/tstest",
+      "args": ["test/test.browser.ts", "--web", "--verbose"],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "skipFiles": ["<node_internals>/**"]
+    },
+    {
+      "name": "Debug Both Tests",
+      "type": "node",
+      "request": "launch",
+      "program": "${workspaceFolder}/node_modules/.bin/tstest",
+      "args": ["test/test.both.ts", "--verbose"],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "skipFiles": ["<node_internals>/**"]
+    },
+    {
+      "name": "Debug All Tests",
+      "type": "node",
+      "request": "launch",
+      "program": "${workspaceFolder}/node_modules/.bin/tstest",
+      "args": ["test/", "--web", "--verbose"],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "skipFiles": ["<node_internals>/**"]
+    }
+  ]
+}