chore: prepare action for v0.0.1 release

- Update action.yml to point to dist/index.js
- Add built distribution files
- Update package.json and build configuration

rolldown.config.js

@@ -1,15 +1,15 @@
 import { defineConfig } from 'rolldown';
 
 export default defineConfig({
-  input: 'index.ts',
+  input: './index.ts',
   output: {
-    file: './index.js',
-    format: 'esm'
+    file: './bundle.js',
+    format: 'esm'    
   },
   platform: 'node',
   target: 'node20',
   external: (id) => {
     // Mark all node modules as external
-    return id.includes('node_modules') || id.startsWith('@actions/') || id.startsWith('node:');
+    return id.includes('node_modules') || id.startsWith('node:');
   }
 });