Add Herdr + Claude AI Coding launcher option

Goal

Add a distinct AI Coding option that launches the existing configured agent container, starts Herdr inside that same container, starts Claude through Herdr, and attaches the terminal to the Herdr session.

Herdr should not be a separate image. The option should reuse the configured Daax agent container image so Claude and the other installed AI tools remain available in the same environment.

Scope

• Add a new Herdr + Claude AI Coding option in the tree and tabs launchers.
• Reuse the existing configured AI Coding container image and project mount behavior.
• Start herdr server inside the container.
• Create/focus a Herdr workspace for the mounted project.
• Start Claude as a Herdr agent.
• Attach the terminal to the Herdr session.
• Include the new option in AI agent ordering/settings.

Validation

• Focused command-handler and agent-order tests should cover the new launcher path.
• TypeScript typecheck should pass.
• Runtime deployment requires the Herdr-enabled agent image to be present on the target host.

Deployment note

daax.galway.poley.dev still needs the refreshed Herdr-enabled agent image and daax-web deployment before this option is available there.

Trace the existing AI Coding paths in the tree and tabs launchers, then read the focused command-handler and agent-order tests mentioned in the issue. Verify how the configured agent image and project mount are reused, and how sessions are started and attached. Done means the new Herdr + Claude option is ordered in settings, covered by focused tests, and passes TypeScript typecheck.