The template required uv (for the agent's `postinstall: uv sync`) and Docker
(for the threads infrastructure) but surfaced nothing until npm install errored
with `sh: uv: command not found`. Add a preflight script wired to preinstall
and predev that prints a clear message pointing at the install docs, plus
README updates calling out both prerequisites.
Switch docker-compose to pull app-api, db-migrations, and realtime-gateway
from public.ecr.aws/cpk/intelligence/* at tag 0.1.0-rc.5 instead of locally
built cpki/*:local images, and drop the build-local-images prerequisite
from the README and compose header.
Max Korp