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>

.prettierrc

@@ -0,0 +1,8 @@
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+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "all",
+  "useTabs": true,
+  "printWidth": 100
+}