fix(plugins): remove invalid mcp_servers key from plugin.json files

The mcp_servers key is not a valid key in the Claude plugin manifest
schema. MCP servers are configured in the root .mcp.json file instead.

Affected plugins:
- cmdb-assistant
- contract-validator
- data-platform
- pr-review
- projman
- viz-platform

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -6,7 +6,7 @@
   },
   "metadata": {
     "description": "Project management plugins with Gitea and NetBox integrations",
-    "version": "5.9.0"
+    "version": "5.8.0"
   },
   "plugins": [
     {

CHANGELOG.md

@@ -6,10 +6,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
----
-
-## [5.9.0] - 2026-02-03
-
 ### Added
 
 #### Plugin Installation Scripts

CLAUDE.md

@@ -146,7 +146,7 @@ When user says "fix the sprint-plan command", edit the SOURCE code.
 ## Project Overview
 
 **Repository:** leo-claude-mktplace
-**Version:** 5.9.0
+**Version:** 5.8.0
 **Status:** Production Ready
 
 A plugin marketplace for Claude Code containing:

README.md

@@ -1,4 +1,4 @@
-# Leo Claude Marketplace - v5.9.0
+# Leo Claude Marketplace - v5.8.0
 
 A collection of Claude Code plugins for project management, infrastructure automation, and development workflows.