chore: Release v4.1.1 - Remove redundant advanced_search and fix MCP bugs

Version bump to 4.1.1 with critical bug fixes and API simplification.

Removed:
- Redundant advanced_search MCP tool (no unique functionality)
- advancedSearch method from SessionSearch class

Fixed:
- findByConcept, findByType, findByFile now respect limit/offset
- Parser validation prevents observation types in concepts array
- Added token limit warnings to tool descriptions

Changed:
- Simplified MCP API from 7 to 6 tools
- Enhanced SDK prompts to prevent AI data contamination

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

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

package.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-mem",
-  "version": "4.1.0",
+  "version": "4.1.1",
   "description": "Memory compression system for Claude Code - persist context across sessions",
   "keywords": [
     "claude",