Add GitHub Actions workflow for NPM publishing

.github/workflows/publish.yml

@@ -0,0 +1,25 @@
+name: Publish to NPM
+
+on:
+  release:
+    types: [published] # Se dispara cuando creas una "Release" en GitHub
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      
+      # Usamos Bun ya que tu proyecto lo usa
+      - uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: latest
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Authenticate with NPM
+        run: echo "//registry.npmjs.org/:_authToken=${{ secrets.NPM_TOKEN }}" > .npmrc
+
+      - name: Publish to NPM
+        run: npm publish --access public