uv is now pre-baked into the base image
(agent-runtimes/images/base/Dockerfile) and is faster than pip with
better retry on transient network failures. Closes the last runtime
hang vector for project-deps install — apt install was removed 2026-09-06
in 0c57972f-pre-bake work but the pip install -e line in init.sh
remained. uv pip install is the equivalent operation with the new
pre-baked tooling.
Refs F-WE-PDIV/RCA-2026-09-04-zombies.
