chore: Add Node.js .gitignore

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,46 @@
+# Dependencies
+node_modules/
+.pnp
+.pnp.js
+
+# Build output
+dist/
+build/
+out/
+
+# Environment variables
+.env
+.env.local
+.env.*.local
+
+# Logs
+logs/
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids/
+*.pid
+*.seed
+
+# Coverage
+coverage/
+.nyc_output/
+
+# Cache
+.npm
+.eslintcache
+.parcel-cache
+.cache/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Editor
+.vscode/settings.json
+.idea/
+*.swp
+*.swo