fix: load ejclaw mcp tools on claude first turn

runners/shared/test/package-exports.test.ts

@@ -0,0 +1,19 @@
+import fs from 'fs';
+import path from 'path';
+import { describe, expect, it } from 'vitest';
+
+describe('runner shared package exports', () => {
+  it('points runtime imports at built JavaScript for node-launched MCP servers', () => {
+    const packageJson = JSON.parse(
+      fs.readFileSync(
+        path.resolve(import.meta.dirname, '../package.json'),
+        'utf8',
+      ),
+    ) as { exports: { '.': { default: string; types: string } } };
+
+    expect(packageJson.exports['.']).toEqual({
+      types: './src/index.ts',
+      default: './dist/index.js',
+    });
+  });
+});