Add "Show metadata" action to runner list

[Copilot]

Adds ability to view runner metadata JSON from the runners table.

Changes

• Runner table: Added ellipsis menu button to each row with "Show metadata" action
• Metadata dialog: New modal displays runner metadata as formatted JSON
  • Shows runner name in description
  • Handles missing runners and empty metadata
• Routing: Dialog state managed via URL search params (?modal=show-runner-metadata&runnerId=<id>)
• Context support: Integrated into both engine and cloud route contexts

Implementation

Dialog component fetches runner by ID and displays metadata:

const runner = runners?.find((r) => r.runnerId === runnerId);
const metadataJson = runner.metadata 
  ? JSON.stringify(runner.metadata, null, 2) 
  : "{}";

return (
  <pre className="bg-muted p-4 rounded-md overflow-auto max-h-[60vh] text-sm">
    <code>{metadataJson}</code>
  </pre>
);

Follows existing patterns: dropdown menus like ProjectBuildsTableActions, dialog structure like EditRunnerConfigFrameContent.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• pkg.pr.new
  • Triggering command: /usr/local/bin/node node /home/REDACTED/.local/share/pnpm/.tools/pnpm/10.13.1/bin/pnpm install x (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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[linear]

RVT-5040 Add "show metadata" to runner list

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Project	Deployment	Review	Updated (UTC)
rivet-cloud	Ready	Preview, Comment	Dec 28, 2025 7:39pm
rivet-inspector	Ready	Preview, Comment	Dec 28, 2025 7:39pm

2 Skipped Deployments

Project	Deployment	Review	Updated (UTC)
rivet-site	Ignored	Preview	Dec 28, 2025 7:39pm
rivetkit-serverless	Skipped		Dec 28, 2025 7:39pm