fix(mcp-server): copy package.json after esbuild creates dist/

dist/ doesn't exist on a clean checkout — copyFileSync must run
after esbuild has created the directory.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: faical-yannick-congo

packages/mcp-server/build.mjs

@@ -24,9 +24,6 @@ const knowledgeDest = join(__dirname, 'knowledge');
 console.log('Copying knowledge base...');
 copyDir(knowledgeSrc, knowledgeDest);
 
-// Copy package.json so the bundle can read version at runtime
-copyFileSync(join(__dirname, 'package.json'), join(__dirname, 'dist', 'package.json'));
-
 const shared = {
   bundle: true,
   platform: 'node',
@@ -43,4 +40,7 @@ await build({ ...shared, entryPoints: ['src/index.ts'], outfile: 'dist/index.js'
 await build({ ...shared, entryPoints: ['src/bin.ts'],   outfile: 'dist/bin.js',
   banner: { js: '#!/usr/bin/env node' } });
 
+// Copy package.json after esbuild has created dist/
+copyFileSync(join(__dirname, 'package.json'), join(__dirname, 'dist', 'package.json'));
+
 console.log('Build complete!');