fix(mcp): use bin wrapper to fix npx permission denied (#9536)

Fix npx @xen-orchestra/mcp failing with "Permission denied".

tsc does not preserve the executable bit on compiled files, so bin pointing to ./dist/index.mjs (mode 644) caused the error. This adds a bin/xo-mcp.mjs wrapper tracked by git with mode 755, following the same pattern as other packages (@xen-orchestra/xapi, @xen-orchestra/proxy, etc.).

@xen-orchestra/mcp/bin/xo-mcp.mjs

@@ -0,0 +1,8 @@
+#!/usr/bin/env node
+
+import { main } from '../dist/index.mjs'
+
+main().catch(error => {
+  console.error('Fatal error:', error instanceof Error ? error.message : error)
+  process.exitCode = 1
+})

@xen-orchestra/mcp/package.json

@@ -6,7 +6,7 @@
   "type": "module",
   "main": "./dist/index.mjs",
   "bin": {
-    "xo-mcp": "./dist/index.mjs"
+    "xo-mcp": "./bin/xo-mcp.mjs"
   },
   "scripts": {
     "build": "tsc",

@xen-orchestra/mcp/src/index.mts

@@ -427,7 +427,7 @@ Present this information in a friendly, conversational way.`,
 // =============================================================================
 // Start server
 // =============================================================================
-async function main() {
+export async function main() {
   const env = validateEnv()
 
   let xoClient: XoClient | null = null

CHANGELOG.unreleased.md

@@ -17,6 +17,8 @@
 
 > Users must be able to say: “I had this issue, happy to know it's fixed”
 
+- [MCP] Fix `npx @xen-orchestra/mcp` failing with “Permission denied” (PR [#9536](https://github.com/vatesfr/xen-orchestra/pull/9536))
+
 ### Packages to release
 
 > When modifying a package, add it here with its release type.
@@ -33,6 +35,7 @@
 
 <!--packages-start-->
 
+- @xen-orchestra/mcp patch
 - @xen-orchestra/web minor
 - @xen-orchestra/web-core minor