Move gateway configuration into board settings and wire agent\nprovisioning, heartbeat templates, and gateway status lookups\nto use board-specific gateway settings. Adds board_id on agents\nand UI updates for board-scoped selection.\n\nCo-Authored-By: Claude <noreply@anthropic.com>
Use autoescape for Jinja rendering to satisfy bandit checks and\nremove deprecated Clerk SignInButton props to restore type checks.\nAlso ignore tsbuildinfo artifacts and tidy boot instructions.\n\nCo-Authored-By: Claude <noreply@anthropic.com>