chore(compose): bind-mount damascus-roadmap BMAD output

The orchestrator container couldn't ingest damascus-roadmap
stories because the project wasn't bind-mounted at
/opt/damascus/bmad/damascus-roadmap/_bmad-output. Only mindmaps,
restitution, and hello-bmad were mounted. Without this mount,
'ingest --project damascus-roadmap' returns 'no planning-artifacts
for damascus-roadmap' and the cycle can't claim any rows.

Add the bind mount following the same pattern as the other
projects (ro, host path /root/<project>/_bmad-output).

docker-compose.yml

@@ -125,6 +125,7 @@ services:
       # Mount the host's BMAD output dirs under /opt/damascus/bmad/<project>/
       - /root/restitution/_bmad-output:/opt/damascus/bmad/restitution/_bmad-output:ro
       - /root/mindmaps-prds/_bmad-output:/opt/damascus/bmad/mindmaps/_bmad-output:ro
+      - /root/damascus-roadmap/_bmad-output:/opt/damascus/bmad/damascus-roadmap/_bmad-output:ro
       # BMAD kit — templates, samples, and reference docs. Ships with the
       # orchestrator repo at bmad/_kit/. Read-only.
       - ./bmad/_kit:/opt/damascus/bmad/_kit:ro