fix: restore npm-publish.yml — repo has legitimate npm wrapper (#9)

The npm-publish.yml was incorrectly removed in PR #8 based on the assumption
that Python repos should not have npm-publish workflows. However, this repo
has a legitimate npm wrapper (package.json + cli.js) that allows users to
install via 'npm install -g configdrift'. The npm-publish workflow is needed
to publish this wrapper to the npm registry.

Reverts the npm-publish.yml removal from commit 888efcf.

Co-authored-by: DevForge Engineer <engineer@devforge.dev>

Author: Coding-Dev-Tools

.github/workflows/npm-publish.yml

@@ -0,0 +1,27 @@
+name: Publish to npm
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v6
+        with:
+          node-version: "22"
+          registry-url: "https://registry.npmjs.org"
+
+      - name: Publish to npm
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: |
+          npm publish --access public