Release v5.4.4: Fix duplicate entries in viewer

Bugfix:
- Fixed duplicate observations and summaries appearing in viewer
- Root cause: handleSessionInit spawned SDK agent but didn't save promise to session.generatorPromise
- Second agent would spawn when handleObservations ran, causing duplicates
- Fix: Assign generatorPromise in handleSessionInit (matches handleSummarize pattern)

Technical changes:
- Modified src/services/worker-service.ts:265
- Now tracks promise to prevent duplicate agent spawning
- Guard condition in handleObservations (line 301) now works correctly

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

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

plugin/.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-mem",
-  "version": "5.4.3",
+  "version": "5.4.4",
   "description": "Persistent memory system for Claude Code - seamlessly preserve context across sessions",
   "author": {
     "name": "Alex Newman"