chore(v2.2.4): optimize npm package publishing configuration

- Add files field in package.json to strictly control published content
- Only publish compiled dist files, README, LICENSE, and CHANGELOG
- Significantly reduce package size by excluding source code
- Improve security by not exposing source code in published package
- Follow npm official best practices for package distribution

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

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

Author: JochenYang

CHANGELOG.md

@@ -5,6 +5,24 @@ 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/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.2.4] - 2025-11-24
+
+### Changed
+
+- **NPM Package Optimization**: Improved package publishing configuration for better distribution
+  - Added `files` field in `package.json` to strictly control published content
+  - Now only publishes compiled `dist/**/*`, `README.md`, `LICENSE`, and `CHANGELOG.md`
+  - Significantly reduces package size by excluding source code and development files
+  - Improves security by not exposing source code in the published package
+
+### Technical Details
+
+- **Package Structure**: Only distribution-ready files are now included in npm package
+- **Best Practice**: Follows npm official recommendation of using `files` field over `.npmignore`
+- **Backward Compatible**: No breaking changes, only internal distribution improvements
+
+---
+
 ## [2.2.3] - 2025-11-23
 
 ### Fixed

package.json

@@ -1,6 +1,6 @@
 {
   "name": "devmind-mcp",
-  "version": "2.2.3",
+  "version": "2.2.4",
   "description": "DevMind MCP - AI Assistant Memory System - Pure MCP Tool",
   "main": "dist/index.js",
   "type": "module",
@@ -51,5 +51,14 @@
   },
   "engines": {
     "node": ">=20.0.0"
+  },
+  "files": [
+    "dist/**/*",
+    "README.md",
+    "LICENSE",
+    "CHANGELOG.md"
+  ],
+  "publishConfig": {
+    "access": "public"
   }
 }