Pin Backend to require conversation on surface create

Move modules/backend to 528e3a4 (Backend #239), which rejects empty or
foreign conversationId when creating a surface via POST /api/surfaces.

Why: Dev must carry the Backend conversation-required fix.
Evidence: Backend #239 CI success at 954e744; agent-exec unit
dev-svc-superadmin-surface-backend-repin (cursor, authorized fresh rerun,
terminal=success).
Impact: documentation pin / gitlink only.
Refs: Dev task fix/svc-superadmin-envfile-surface-conv.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
agent-exec-transport
2026-10-21 15:11:13 +00:00
committed by weichen
co-authored by Cursor
parent 0194c5d847
commit 3c0faf76b0