chore: bump version to 2.10.1 for memory leak fix release

- Updated version in package.json and package.runtime.json
- Updated README version badge
- Moved changelog entry from Unreleased to v2.10.1
- Added version comparison link for v2.10.1

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

package.runtime.json

@@ -1,6 +1,6 @@
 {
   "name": "n8n-mcp-runtime",
-  "version": "2.10.0",
+  "version": "2.10.1",
   "description": "n8n MCP Server Runtime Dependencies Only",
   "private": true,
   "dependencies": {