fix: RSS Reader full QuickJS compatibility and cleanup

- Replace all Array.prototype.filter() calls with manual for loops
- Remove debug logging
- Bump version to 1.2.0

Also includes WebSocket reconnect handling improvement.

nodes/rss/rss-reader.js

@@ -2,7 +2,7 @@
  * @node rss-reader
  * @name RSS Reader
  * @category data
- * @version 1.1.6
+ * @version 1.2.0
  * @description Read and parse RSS/Atom feeds with optional filtering by keyword, date, or count. Supports stateful new item detection.
  * @icon rss
  */