Phase 5 of PRD 0013. End-to-end integration test against real Docker:
- Brings up the supervise sidecar on a per-bottle internal network.
- A curl-image "agent" on the same network does tools/list and gets
back the three PRD 0013 tool names over real MCP wire format.
- A tools/call round-trips through the queue: agent blocks on the
call, host watches the queue, dashboard.approve writes a Response,
agent receives the approval payload (status, notes) in MCP content.
- Documents the orphan-sidecar name-collision behavior so a future
auto-cleanup change can flip the assertion.
Skips if docker is unreachable, matching the existing integration
pattern.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
