Initial release: n8n Plex Media Server node

Features:
- Server: Get identity, info, preferences, sessions, butler tasks
- Library: Get all, get contents, recently added, on deck, refresh, analyze
- Media: Get, update, delete, refresh, mark watched/unwatched
- Playlist: CRUD operations, add/remove items
- Collection: CRUD operations, add/remove items
- Search: Global and library-specific search
- Session: Get active sessions, history, terminate

Includes CI/CD pipeline for automatic npm publishing on release.

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

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

.gitignore

@@ -0,0 +1,5 @@
+node_modules/
+dist/
+.DS_Store
+*.log
+.env