Remove deprecated npm-publish.yml

update-database.yml handles all publishing with OIDC

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/npm-publish.yml

@@ -1,30 +0,0 @@
-# This workflow publishes to npm when changes are pushed manually
-# Note: The update-database.yml workflow handles automatic updates and publishing
-
-name: Publish to npm
-
-on:
-  push:
-    branches:
-      - master
-    paths-ignore:
-      - '.github/**'
-      - 'README.md'
-
-jobs:
-  publish:
-    runs-on: ubuntu-latest
-    # Skip if the commit was made by github-actions (to avoid duplicate publishes)
-    if: github.actor != 'github-actions[bot]'
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-node@v4
-        with:
-          node-version: '20'
-          registry-url: 'https://registry.npmjs.org'
-
-      - run: npm publish
-        env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}