Cart-actor (x86/arm64) and cart-backoffice all resolve to the same NFS file at nfs/cart-actor/promotions.json given their existing volume mounts. cart-actor pods use PROMOTIONS_FILE=/data/promotions.json (mount subpath); cart-backoffice uses /data/cart-actor/promotions.json (NFS root + CART_DIR). Defensive alignment so UI edits are visible across pods even if a future NFS subpath shuffle happens.
mats
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