build(kinova): add websockets + msgpack to the rollout client image deps

[suchkristenwow]

What

Bake websockets>=13 and msgpack>=1.0 into the MoveIt Pro user-overlay Docker image via a pip install layer in the shared base stage of the workspace Dockerfile.

Why

This is for the C0 Kinova rollout client (scripts/kinova/rollout.py) added in end-to-end PR #81 (c0-kinova-rollout). That client is a torch-free real-Kinova rollout client whose policy client uses websockets (sync) + msgpack to talk to a policy server. It runs inside the agent_bridge container, so its Python dependencies must live in the image.

This closes the open checklist item in end-to-end PR #81:

Add msgpack + websockets to the agent_bridge container image so the client runs there.

Today those deps are only pip installed ephemerally into the running container (moveit_pro-dev-1, image moveit-studio-dev:main-humble), so they vanish on every image rebuild. This change replaces that ephemeral workaround by baking them in at moveit_pro build time.

How

The workspace Dockerfile base stage is shared by every service via Docker Compose extends: base (base builds from context: ${STUDIO_HOST_USER_WORKSPACE}), so the agent_bridge service inherits it. The deps are added with pip install right after the existing rosdep install step — the same place the Dockerfile already invites additional pip/apt installs.

Why pip and not a rosdep key

python3-websockets / python3-msgpack are valid rosdep keys, but on the Ubuntu Jammy base (humble) the apt python3-websockets candidate is 9.1, which does not satisfy the required websockets>=13. So websockets must come from pip to honor the version constraint; both are installed via pip for consistency.

Versions

• websockets>=13
• msgpack>=1.0

(Match end-to-end PR #81's pyproject.)

Validation

• hadolint (the repo's pre-commit Dockerfile linter, v2.14.0) passes with no warnings.

🤖 Generated with Claude Code

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[github-actions]

⚠️ This PR modifies 1 file(s) that also exist in PickNikRobotics/moveit_pro_empty_ws.

Consider whether the change should land upstream in moveit_pro_empty_ws first so downstream forks pick it up on the next sync.

Overlapping files

• Dockerfile

[github-actions]

MoveIt Pro Example WS - Objectives Integration Test Report

• ✅ humble: view HTML report — 35 passed
• ✅ jazzy: view HTML report — 35 passed