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>

.claude-plugin/marketplace.json

@@ -10,7 +10,7 @@
   "plugins": [
     {
       "name": "claude-mem",
-      "version": "4.1.0",
+      "version": "4.1.1",
       "source": "./plugin",
       "description": "Persistent memory system for Claude Code - context compression across sessions"
     }

CHANGELOG.md

@@ -5,6 +5,21 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 
+## [4.1.1] - 2025-10-21
+
+### Removed
+- **advanced_search tool**: Removed redundant MCP tool that provided no functionality beyond calling search_observations + search_sessions
+
+### Fixed
+- **MCP search limit bug**: Fixed findByConcept, findByType, and findByFile methods to properly respect limit/offset parameters
+- **Type contamination in concepts**: Added parser validation to prevent observation types from being added to concepts array
+- **Token limit warnings**: Added guidance in tool descriptions to start with 3-5 results to avoid MCP token limits
+
+### Changed
+- **Simplified MCP API**: Reduced from 7 to 6 search tools by removing the redundant advanced_search
+- **Improved search prompts**: Enhanced type and concept constraint language in SDK prompts to prevent AI contamination
+
+
 ## [4.1.0] - 2025-10-21
 
 ### Changed

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",