Fix Next.js deployment configuration

- Fix security test to properly mock fetchFromConfluence errors
- Remove test execution from build (env vars not available in build)
- Remove standalone output for Amplify compatibility
- Platform already updated to WEB_COMPUTE via Terraform

🤖 Generated with [Claude Code](https://claude.ai/code)

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

next.config.js

@@ -1,7 +1,7 @@
 /** @type {import('next').NextConfig} */
 const nextConfig = {
   reactStrictMode: true,
-  output: 'standalone',
+  // Remove output: 'standalone' for Amplify
 }
 
 module.exports = nextConfig