Link runs in the Runs list to their run dashboard

[marciok]

Summary

Allow users to open a run directly from the Runs list by clicking the run entry.

Expected behavior

Clicking the run identifier or primary run link navigates to the corresponding DAG dashboard with that run selected.

Acceptance criteria

• Each run in the Runs list exposes a clear link to its dashboard.
• The destination includes the correct DAG and run ID.
• Batch-selection checkboxes and batch-action controls continue to work without triggering navigation.
• The link is keyboard accessible and has a stable DOM ID for tests.
• Add a LiveView test that opens a listed run and verifies the destination.