weichen
1e4ac44439
Why: advancing the RDM pin red-lights test-pg on a real composition problem that make test cannot see, and the card must say so plainly instead of showing a green combination run. Evidence: run 4707 job 7812 — the combination build reports missing go.sum entries for agent-document-renderer packages. RDM bc8db88 replaces that module with a local path and therefore carries no go.sum entries for it, while the Dev-side build redirects the backend replace to modules/backend (f084d10), which imports those packages directly. Impact: task card only. Refs: PR #682