Fix CI Docker image build by restoring Next.js standalone output

[Copilot]

CI / CD / Docker Image Build was failing on both pull_request and push because the Docker runtime stage copies .next/standalone, but the Next.js build no longer emitted that artifact. This change aligns build output with the existing Docker packaging contract.

• Root cause

  • Dockerfile expects:
    • .next/standalone
    • .next/static
  • Next.js config did not enforce standalone output, so image assembly failed at copy time.

• Change

  • Updated Next.js config to explicitly emit standalone artifacts required by the Docker runtime stage.

• Config delta

  // next.config.mjs
  const nextConfig = {
    pageExtensions: ['ts', 'tsx', 'md', 'mdx'],
    output: 'standalone',
    // ...
  };

[vercel]

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Project	Deployment	Actions	Updated (UTC)
0x402-pubsub	Ready	Preview, Comment	Jun 23, 2026 10:24pm