Fumadocs on TanStack Start

Documentation checks

find docs -type f | sort

Expected: required docs from the handoff are present.

git diff -- README.md docs

Expected: changes are intentional and navigable.

Optional later:

markdown-link-check docs/**/*.md README.md

uh validate .harness/project.yaml
uh validate .harness/missions/`id`/mission.yaml
uh validate .harness/adapters/`adapter`.yaml

uh adapter check hermes
uh mission dry-run .harness/missions/`id`/mission.yaml
uh sandbox inspect `sandbox-id`