Add scripts and Lima config for managing local coold endpoint VMs,
mint Flux dev host JWTs, expose coold host details on the V5 home
page, and document the local development workflow.
Adds v5 routing, middleware, home page rendering, team context sharing,
project model/table support, and Flux health reporting. Installs Flux in
container builds with role-aware s6 services and documents runtime roles.
