fix: correct main and types paths to enable direct imports

- Fix main: 'dist/lib/index.js' → 'dist/index.js'
- Fix types: 'dist/lib/index.d.ts' → 'dist/index.d.ts'
- Now users can import directly: import { Worker } from 'nestjs-worker'
- No more need for 'nestjs-worker/dist' imports
- Matches standard NestJS library patterns like nestjs-sqs

Author: kauandotnet

package.json

@@ -4,8 +4,8 @@
   "description": "A powerful NestJS library for seamless worker_threads integration with decorators and dependency injection",
   "author": "Bitwild <contact@bitwild.com>",
   "license": "BSD-3-Clause",
-  "main": "dist/lib/index.js",
-  "types": "dist/lib/index.d.ts",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
   "files": [
     "dist/**/*",
     "README.md",