feat: add agent model selection and server spawning

refactor(beads-kanban-w2ry): use Agent SDK for name generation

improve(beads-kanban-w2ry): enhance agent name generation prompt

fix(beads-kanban-tw2w): remove Node.js process.env reference from browser code

fix: move totalQueueCount after ops dependency

fix: DRY btn-agent styling in DetailPanelFooter

fix: replace WebSocket probe with HTTP health check

feat: add agent name generation with SDK

chore: update beads issue state

feat(beads-kanban-w2ry): improve agent name generation prompt

chore: update beads issue state

fix: align queue button styling with agent tab pattern

chore: update beads issue state

feat: add time-travel diff view comparing issues against git revisions

fix: gracefully handle ?issue= param for missing issues