The dependency-graph plugin imported the deleted taskStuck util through its
dashboard interop shim, breaking the dashboard vite build. Remove the isStuck
gate from graph nodes, the taskStuckTimeoutMs prop threading, the taskStuck
module declaration from dashboard-interop.d.ts, and the stalled-card-as-stuck
test coverage. Covered by the existing remove-stuck-task-tagging changeset.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>