chore: bump pi-agent-memory to 0.2.0

Addresses all review feedback from PR thedotmack#1786:
- Fix platformSource camelCase in all worker POST bodies
- Fix search query parameter (q → query)
- Add NaN guard on port parsing
- Add platformSource to summarize/complete/observations calls

Author: ArtemisAI

pi-agent/package.json

@@ -1,6 +1,6 @@
 {
   "name": "pi-agent-memory",
-  "version": "0.1.1",
+  "version": "0.2.0",
   "description": "Persistent memory for pi-agents, powered by claude-mem (55k+ stars). Cross-session, cross-engine memory with hybrid search.",
   "keywords": [
     "pi-package",